Ermo 482x PRO

Installation Handbook

page 1 of 29

INFINITY 482 X PRO

1. DESCRIPTION

1.1 Description

The INFINITY 482x

PRO

is a digital microwave barrier used for both internal and external

volumetric protection. The system can detect the presence of someone or something moving
within the sensitive field between

the unit’s transmitter (Tx) and the system receiver (Rx).

Unique to the INFINITY 482x Pro is its signal processing. The received signal at the receiver is
processed digitally and analyzed

with “Fuzzy” logic in order to obtain maximum detection,

performance and reliability with a minimum false alarm rate. This is a significant improvement
over traditional analog and Doppler signal processing systems.

The INFINITY 482x

PRO

family of products are available in the following model configurations

offering a variety of coverage ranges:

- INFINITY 482x

PRO

/ 50

Range 50 meters

- INFINITY 482x

PRO

/ 80

Range 80 meters

- INFINITY 482x

PRO

/ 120

Range 120 meters

- INFINITY 482x

PRO

/ 200

Range 200 meters

Ranges

Parabola

20 cm

10 cm

200

120

Installation Handbook

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INFINITY 482 X PRO

2.3 Ground conditions

It is not advisable to install the equipment along sections with tall grass (more than 10 cm),
ponds, longitudinal waterways, and grounds subject to movement.

2.4 Presence of Obstacles

Since we are dealing with microwave frequency transmission, there are several items that require
special consideration by the installer.  The first  and foremost  have to deal with fenced areas.  In
general,  as  fences  running  alongside  the  microwave  barriers  are  generally  metallic  in  their
composition,  they  could  in  fact  create  a  highly  reflective  situation  and  hinder  the  reliable
operation of the system. As a result, there are certain precautions that should be taken:

- first of all, make sure that the fence has been properly fixed in order that the wind does

not move its chain link;

- if at all possible the microwave beam should not be placed in parallel to a metallic fence,

but rather, create a corner with it;

- distancing the barrier when running in parallel with a chain link fence or other metallic wall

is highly recommended;

- metal fences placed behind the equipment may cause distortions to the sensitive beam

causing false motion detection in unexpected areas with subsequent likely generation of
false alarms;

- in the case of Mw barrier installed in a corridor between two metallic fences, the width of

the corridor should not be less than 5 meters;

Along the zone and within the area of the protection field one may allow pipes, poles or similar
objects (e.g., lamp posts) to be scattered in the detection field as long as their dimensions, with
respect to the protection beam, are not excessive and are not moving.

Avoid trees, hedges and bushes in the path of protection beams. These obstacles can be moved
by the wind and cause false alarms.

Figure 2

It is possible to tolerate the presence of these elements near the protection sections only if their
growth  is  limited  through  routine  site  maintenance  and  if  their  movement  is  stopped  through
containment  barriers.  Various  Obstacles  may  also  be  present  along  the  protection  zones  and
one is required to take the same considerations and precautions as adopted for the above cases.
Failure to plan for a stable installation could cause the introduction of  Dead zones  that do not
protect the site and  Hypersensitive zones which could cause false alarms.

Installation Handbook

page 5 of 29

INFINITY 482 X PRO

2.5 Amplitude of the Sensitive Beam

The diameter of the Sensitive Beam depends on the distance between the transmitter and the
receiver, the antenna type selected and deployed as well as the sensitivity adjustment made.
The figures below state the diameter half-way of the sensitive beam section (based on the length
of the section) in cases of maximum and minimum sensitivity (see next figures ).

Diameter
Half-Way (m)

Ma xim um
Sensitivity

Minim um
Sensitivity

Lenght of
the Section (m)

Figure 3 Diameter of sensitive beam at the half-section length (ERMO 482x

PRO

/ 50)

Diameter
Half-Way (m)

Ma xim um
Sensitivity

Minim um
Sensitivity

Lenght of
the Section (m)

Figure 4 Diameter of sensitive beam at the half-section length (ERMO 482x

PRO

/ 80-120-

200)

Remark: When installing the INFINITY 482x

PRO

equipment, the sensitivity and the pre-alarm

threshold adjustment that is to be made should be calculated and set at half of the zone
section length. The higher the pre-alarm threshold the lower the sensitivity, and
vice versa.

It’s important to keep in mind that the pre-alarm threshold determines the starting point of the
intelligent analysis: all signals below this threshold, are considered as backround noise, and of
low importance. All the signals higher this threshold are analyzed following Fuzzy Logic rules.

Installation Handbook

page 6 of 29

INFINITY 482 X PRO

2.6 Length of the Dead Zones near the equipment

The  length  of  the  Dead  Zones  near  the  transmission  and  receiving  radomes  is  based  on  the
distance  of  the  equipment  from  ground,  the  sensitivity  set  on  the  receiver  and  on  the  type  of
antenna used.
With regard to  the considerations stated above and based on

the end user’s requirements, the

equipment must be installed at a certain height from the ground. What this means is that in a
typical system deployment this distance must be 80 cm. ( Measured from the ground level
to the center of the radome.) With the system set at a medium sensitivity setting, the suggested
crossing overlap is 5 m. for the 80-120-200 m. models and 3.5 m. for the 50 m. model.

Minim um
Sensitivity

Length of the
Dea d Zone

Insta lla tion
Height (cm )

Ma xim um
Sensitivity

Figure 5 INFINITY 482x

PRO

-50: Dead zone length near the equipment versus installation

height.

Installation
Height (cm)

Minim um
Sensitivity

Ma xim um
Sensitivity

Length of the
Dead Zone (m)

Figure 6 INFINITY 482X. 80-120-200: Dead zone length near the equipment versus

installation height.

5 M

-8

a d

Dea d Z

one

Installation Handbook

page 7 of 29

INFINITY 482 X PRO

3.1 Terminal Blocks, Connectors and Circuit Descriptions

3.1.1 Transmitter Circuit

AMP1

MS1

MS2

SW2

SW3

SW1

Jp5

Rete

Jp6

Jp1

OUT

SYNC

MS 4

MS5

Jp4

MS 3

D7 D8 D9

D15

Batteria
BackUp

Figure 8

Layout of connectors, jumpers, LEDs and Factory presets in transmitter board

The following tables shows the connector pin functions present on INFINITY 482x

PRO

Transmitter

TRANSMITTER TERMINAL BLOCK MS2

Term Symbol

Function

19 V~

Mains AC power supply input (19 V~)

19 V~

Mains AC power supply input (19 V~)

TRANSMITTER TERMINAL BLOCK MS4

Term Symbol

Function

ALL 1

Alarm relay contact (Normally Closed)

ALL 2

Alarm relay contact (Normally Closed)

PT 1

Tamper relay contact (Normally Closed) + bulb contact (AMP1)

PT 2

Tamper relay contact (Normally Closed) + bulb contact (AMP1)

GST 1

Fault relay contact (Normally Closed)

GST 2

Fault relay contact (Normally Closed)

ST BY

Auxiliary input for Stand-By command (Norm. Open from GND)

TEST

Auxiliary input for Test command (Norm. Open from GND)

GND

Ground auxiliary connection

ING

Balanced Line Input for external device (detector)

Installation Handbook

page 8 of 29

INFINITY 482 X PRO

TRANSMITTER TERMINAL BLOCK MS5

Term Symbol

Function

+13.8

Dc Power Supply (13,8 V

) for RS-485/232 converter

GND 1 Ground connection for Data and Power Supply

+ RS 485 (High Line)

- RS 485 (Low Line)

TRANSMITTER TERMINAL BLOCK MS1

Term Symbol

Function

13.8V

+13,8 VDC Connection for Battery (Protection Fuse F3 = T2A)

GND 1 Ground connection for Battery

TRANSMITTER TERMINAL BLOCK MS3

Term Symbol

Function

GND 1 Ground connection for sync cable

SYNC Sync In/Out connection to perform Slave/Master operation

setting JP1

TRANSMITTER CONNECTOR J1

Connector for MW oscillator (DRO)

Term Symbol

Function

GND

Ground connection for MW oscillator

DRO

Modulation Frequency connection for MW oscillator

GND

Ground connection for MW oscillator

TRANSMITTER CONNECTOR J3

Measure Connector

Term Symbol

Function

1/3

N.C.

Not Connected

GND

Ground

N.C.

Not Connected

+13.8

Power Supply (13,8 V

)

7/11

N.C.

Not Connected

+5V

Internal Power Supply (5 V

)

OSC

Oscillator functioning Measure (+ 4V

= OK)

14/15

N.C.

Not Connected

+8V

Internal Power Supply (8 V

)

TRANSMITTER CONNECTOR J5

Microswitch Connector for Radome Tamper

Term

Symbol

Function

GND

Ground connection for Tamper

ING

Tamper Input

GND

Ground connection for Tamper

Installation Handbook

page 9 of 29

INFINITY 482 X PRO

TRANSMITTER CONNECTOR J6

10 pin Connector for direct PC Serial Line connection (Mwatest SW)

Term

Symbol

Function

1/2

N.C.

Not Connected

+13.8

Power Supply (13.8 V

) Converter interface RS-485/232

N.C.

Not Connected

Low Line for RS 485

N.C

Not Connected

High Line for RS 485

N.C.

Not Connected

GND

Ground

N.C.

Not Connected

TRANSMITTER CHANNELS SWITCH

N°

Symbol

Function

SW1

Hexadecimal Modulation Channel Selector

TRANSMITTER NUMBER OF BARRIER SWITCHES SW2 SW3

N°

Symbol

Function

SW2

Barrier Number selector (units column)

SW3

Barrier Number selector (tens column)

TRANSMITTER FUSES

N°

Symbol

Function

Tx Circuit Power supply (13.8 V

) protection fuse (T2A-250V

slow blow)

AC Power supply protection fuse 19 V~ (T2A-250V slow blow)

Power supply protection fuse for Battery 13.8 V

(T2A-250V

slow blow)

TRANSMITTER LEDS

N°

Symbol

Function

Default

Fault indication. ( OFF by means of Jp4)

Tamper indication. ( OFF by means of Jp4)

Alarm indication. ( OFF by means of Jp4)

D15

Main presence indication

TRANSMITTER JUMPERS

N°

Symbol

Function

Default

Jp1

Internal Modulation signal (Tx-Master,Sync-Out) or
External Modulation signal (TxSlave,Sync-In)

OUT

Jp4

Exclusion for fault, tamper and alarm indication
Leds (Jp4 DOWN leds OFF)

Jp5

RS485 Line termination (Jp5 DOWN line
terminated)

OFF

Jp6

Enable / Disabile Balanced Line Input (Closed =
Input disabled)

OFF

Installation Handbook

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INFINITY 482 X PRO

3.1.2 Receiver Circuit

AMP1

MS1

MS2

JP5

SW3 SW2

SW1

D 17

S 1

D10

D11

MS3

MS4

Jp4

Batteria
BackUp

Jp3

Figure 9

Layout of connectors, jumpers, LED and Factory presets in receiver board

The following table shows the connector pin functions present on INFINITY 482x

PRO

Receiver

board.

RECEIVER TERMINAL BLOCK MS2

Tem Symbol

Function

Vac

Mains AC power supply input (19 V~)

Vac

Mains AC power supply input (19 V~)(Protection Fuse F2 =T2A)

RECEIVER TERMINAL BLOCK MS3

Term Symbol

Function

ALL 1

Alarm relay contact (Normally Closed)

ALL 2

Alarm relay contact (Normally Closed)

PT 1

Tamper relay contact (Normally Closed) + bulb contact

PT 2

Tamper relay contact (Normally Closed) + bulb contact

GST 1 Fault relay contact (Normally Closed)

GST 2 Fault relay contact (Normally Closed)

ST BY Auxiliary input for Stand-By command (Norm. Open from GND)

TEST

Auxiliary input for Test command (Norm. Open from GND)

GND

Ground auxiliary connection

ING

Balanced Line Input for external device (detector)

RECEIVER TERMINAL BLOCK MS1

Term

Symbol

Function

+13.8

+ 13.8 VDC Connection for Battery (Protection Fuse F3 =T2A)

GND 1

Ground connection for Battery

Installation Handbook

page 11 of 29

INFINITY 482 X PRO

RECEIVER TERMINAL BLOCK MS4

Term Symbol

Function

+13.8

Dc Power Supply (13.8 V

) for RS-485/232 converter

GND 1

Ground connection for Data and Power Supply

+ RS 485 (High Line)

- RS 485 (Low Line)

RECEIVER CONNECTOR J1

Connector for MW detector

Term Symbol

Function

GND

Ground connection for MW oscillator

DET

Connection for MW detector

GND

Ground connection for MW oscillator

RECEIVER CONNECTOR J3

Measure Connector

Term Symbol

Function

1/3

N.C.

Not Connected

GND

Ground

N.C

Not Connected

+13.8

Power Supply (13.8 V

)

7/8

N.C

Not Connected

0,2V.

Detected Signal 200 mVpp

10/11

N.C.

Not Connected

+5V

Internal Power Supply (5 V

)

N.C

Not Connected

VRAG Automatic Gain Control Voltage

15/16

N.C.

Not Connected

CONNETTORE J4 RICEVITORE

Connettore per microinterruttore apertura Radome

“Tamper”

Mors

Simbolo

Funzione

GND

Collegamento di Massa per Tamper

ING

Ingresso Tamper

GND

Collegamento di Massa per Tamper

RECEIVER CONNECTOR J5

10 pin Connector for direct PC Serial Line connection (Mwatest SW)

Term

Symbol

Function

1/2

N.C.

Not Connected

+13.8

Power Supply (13,8 V

) converter interface RS-485/232

N.C.

Not Connected

Low Line for RS 485

N.C

Not Connected

High Line for RS 485

N.C.

Not Connected

GND

Ground

N.C.

Not Connected

Installation Handbook

page 12 of 29

INFINITY 482 X PRO

RECEIVER FUSES

N°

Symbol

Function

Power supply (13.8 V

) protection fuse (T2A-250V slow blow)

AC Power supply protection fuse 19 V~ (T2A-250V slow blow)

Power supply protection fuse for Battery 13.8 V

(T2A-250V slow

blow)

RECEIVER JUMPERS

N°

Symbol

Function

Default

Jp3

Data and Parameters Battery Back-Up OFF (Jp3 right
position = battery connected (ON)

Jp4

LED's OFF from D6 to D11 (Jp4 UP =

LED’s OFF)

Jp5

RS 485 Line termination (Jp5 DOWN line terminated)

OFF

RECEIVER LEDS

N°

Symbol

Function

Default

Fault indication + Alignment and setting functions

Tamper indication + Alignment and setting functions

Alarm indication + Alignment and setting functions

Alignment and setting functions

OFF

D10

Alignment and setting functions

OFF

D11

Alignment and setting functions

OFF

D17

Main presence indication

SET

–UP BUTTON FOR ALIGNEMENT AND SETTING

N°

Symbol

Function

Button to accept data in alignment operation and to write
parameter in setting operations

RECEIVER FUNCTION SWITCH SW1

N°

Symbol

Function

SW1

10 position rotary switch:
Position 1 = Barrier alignment
Position 2 = acquisition, of the installation values (Channel number
and AGC Voltage)
Position 3 = Prealarm thresholds Read/Write
Position 4 = Alarm thresholds Read/Write + Walk-Test
Position 5 = Masking thresholds Read/Write
Position 6 = Upper Prealarm thresholds Read/Write (FSTD)
Position 7 = Lower Prealarm thresholds Read/Write (FSTD)
Position 8 = Barrier number Read/Write
Position 9 = Alignment procedures ending (balanced line Active)
Position 0 = Alignment procedures ending (balanced line Inactive)

PARAMETERS AND BARRIER NUMBER READING AND SETTING

SWITCHES SW2- SW3

N°

Symbol

Function

SW2

Decimal rotary switch to read or to set parameters during the
alignment operations (units column)

SW3

Decimal rotary switch to read or to set parameters during the
alignment operations (tens column)

Installation Handbook

page 13 of 29

INFINITY 482 X PRO

3.2

Equipment Connection to the Power Supply

Though the equipment is capable of accepting Direct Current power input of ( 12 VDC ) and
still operate properly, it is still advisable and recommended to power the equipment with
Alternating Current (AC) power ( 24 VAC

~ )

3.2.1 Connection to the Power Supply

The connection between the equipment and the transformer must be as short as possible (less
then  4  meters  (15  feet)),  and  the  size  of  the  cable  center  conductor  must  not  be  less  than  1.5
mm².. (12 ga).

The connection between the  secondary of the low voltage AC  transformer and the  primary 110
volt or 230 V~  mains power will be made using the above mentioned minimum cable gauge and
voltage.

The power supply cables connecting transformer to the equipment must be of shielded type with
the shield connected to ground.

The  connection  between  unit  and  the  power  supply  must  be  made  with  properly  sized  cables.
The  cable  length  with  proper  cable  gauge  must  be  computed  taking  into  consideration  both
length and unit current draw. This is especially true if DC power is to be used.

For the power supply input connection (Alternating Current ) 24 VAC

, Use terminals 1/2 on the

terminal strip labelled MS2 of the Rx and Tx circuit. The protection fuse is F2 is 2 A (T2A) slow-
blow type.
Use only safety transformers with the following characteristics:

primary voltage:

110 or 230 V~

secondary voltage

19 V~

minimum power output

30 VA

Remark: Use only approved and listed transformers (example Certified EN 60950/UL/CSA/CUL)

Make sure to connect the body of the transformer to the tap.
Connect the primary of the transformer of the AC Mains connection to a separate circuit
breaker within the power distribution box, connecting to a circuit breaker with the
following characteristics:

bipolar with minimum distance between contacts equal to 3 mm

provided in the fix part of cabling

easily accessible

Remark: If the volumetric barrier system is to be connected to an external DC power supply

(13.8V ), rather than an AC power source, in order   to avoid the activation of the AC
Power Loss  (fault contact) due to the fact that the system has detected an AC Power
Loss  exceeding  3  hours,  it  is  necessary  for  the  installer  at  time  of  installation  when
using  a  DC  power  supply  to  connect  the  positive  incoming    voltage  (13.8V ),to  the
terminal 1 or 2 of the terminal block MS2 either on transmitter and receiver as well as to
the DC terminals 1 and 2 on terminal block MS1.

Installation Handbook

page 15 of 29

INFINITY 482 X PRO

3.3 Connection to the Control Panel

3.3.1 Alarm contacts: Alarm, Tamper, Fault

On both the transmitter and receiver PCB

’s one may locate three (3)relay outputs. These Relays

are static with dry contacts that are normally closed. By means of these contacts it is possible to
communicate to the control panel the following three conditions:

ALARM, TAMPER, FAULT

There are also 3 inputs to activate the following functions:

  Test (TX and RX)
  Stand-by (TX and RX)
  Synchronization (TX only)

The output contacts for alarm, tamper and fault, both on transmitter and receiver, are made by
Static Relays with maximum current switching capacity of 100 mA.

Remark: in closed condition the resistance of the contact is about 40 ohms.

The connections to control panel must be made by means of shielded cables.
The relays are activated for the following reasons:

- ALARM RELAYS

1-  Pre-alarm on receiver ( See Remark1 )
2-  Intrusion alarm on receiver
3-  Receiver masking condition alarm
4-  Alarm of external detector connected at Auxiliary Balanced Line
5-  Successful result of test procedure operation on receiver
6-  Insufficient received signal (V RAG >6.99V)
7-  Channel alarm.

- TAMPER RELAYS

1- Cover removed (radome)
2- Tilt Bulb position
3- Tampering of external detector connected using the Auxiliary Balanced Line

4- Cut of Auxiliary Balanced Line
5- Short circuit of Auxiliary Balanced Line.

- FAULT RELAYS

1- Battery voltage low (< +11V )
2- Battery voltage high (> +14.8V )
3- Temperature low (< -35°C internal)
4- Temperature high (> +75°C internal)
5- Fault of external detector connected using the Auxiliary Balanced Line
6- RF or BF Oscillator fault on Transmitter
7- AC Main power missing or power supply fault (more then 3 hours)

Remark 1: If the intrusion signal, after overcoming the pre-alarm threshold, stays active for 40

seconds between pre-alarm and alarm threshold,

the barrier gives a “pre-alarm”

event and the alarm output is activated and the contact is opened.

Installation Handbook

page 16 of 29

INFINITY 482 X PRO

3.3.2 Synchronization connection

For the Synchronization between two Transmitters, it is necessary to interconnect both the
terminals 2

“SYNC”, and 1 “GND1” , of terminal block MS3 of both Transmitters.

It is also necessary to select one T

ransmitter as “Master” and the other as “Slave”, by means of

jumper Jp1.

Jp1 =

“IN” position, the terminal 1 of MS3 is the input for an external synchronization

signal, so the T

ransmitter is “Slave”.

Jp1 =

“OUT” position, the terminal 1 of MS3 is the output for the synchronization signal

internally produced, so the T

ransmitter is “Master”

Remark: The cable connecting the two transmitters, must be as short as possible and not more

than 10 meters (aprox 35 feet). If cables longer than 10 meters are required, it is
necessary to use the synchronization repetition circuit mod. SYNC 01.

3.3.3 Stand-by connection

For the Stand-by function activation, it is necessary connect to ground the terminal 7

“STBY” of

the MS3 terminal block for the receiver circuit and connect to ground the terminal

7 “STBY” of

the MS4 terminal block for the transmitter circuit.

Remark: Using the Stand-by operation does not inhibit the barrier functionality, but deactivates

and suspends the recording of

the system’s events into the “historical file” (TX and

RX) and in the monitor file (RX).

3.3.4 Test connection

The Test function will be enabled when connecting to ground Te

rminal 8 “TEST” found on

terminal block MS4 on Transmitter circuit. If the test procedure is successfully performed, the
alarm relays on Receiver circuit will be activated 10 seconds later.

Remark: For high risk sites and high security applications it is highly recommended that the

system  be  tested  periodically.  In  addition  to  customary  walk  tests,  when  using  this
special  Test  Connection,  one  may  verify  alarm  relay  functionality  as  well  as  the
receivers signal processing circuitry, in addition to verifying the integrity of the cabling
to the control panel itself. To perform this test, you may  use the Ermo-Test instrument
to  facilitate  the  test  further,  whereby  the  technician  may  also  test  the  microwave
barrier by temporary switching-off the transmitter.

3.3.5 Balanced Line connection

Both on the transmitter and receiver PCB may be found a Balanced Line input connection where
it’s possible for one to connect to an external detector and manage its activity through each head
(TX  or  RX).  To  activate  this  function  on  the  TX  PCB,  it’s  necessary  to  open  Jp5  jumper.  To
activate this function on the RX PCB, it’s necessary to end the alignment procedure, leaving the
function selector SW1 in position 9 instead of  0. The balanced inputs are provided at terminals
10 (ING) and 9 (GND)  on terminal block MS4 of the transmitter PCB, and MS3 of the receiver
PCB. By these inputs it’s possible to manage  the following conditions of external detectors:

  rest condition of external detector
  alarm condition of external detector
  tamper condition of external detector
  fault condition of external detector

Installation Handbook

page 17 of 29

INFINITY 482 X PRO

In addition, it is possible to manage the following conditions:

Line cut condition of the wires connecting the external detector at TX or RX PCB
Short Circuit condition of the wires connecting the external detector at TX or RX PCB

To manage all these conditions it is necessary to use weighting resistors connected as shown in
the following picture.

RECEIVER PCB

AMP1

MS1

MS2

JP5

SW3 SW2

SW1

D 17

S 1

D10

D11

MS3

MS4

470

1,5K

EXTERNAL DETECTOR

The following table indicates the voltage values present at balanced inputs reflecting the alarm
and faults of the detector and line conditions. It is possible to read these values by means of the
optional WaveTest Manager Software and is located

in the “Analog values” window. (PC and

local or remote connection is required)

0.5

LINE SHORT CIRCUIT

CONDITIONS

INPUT VOLTAGE

[V dc]

LINE CUT

FAULT

TAMPER

ALARM

REST

0.5

1.5

2.5

3.5

4.5

Min. Average Max.

Installation Handbook

page 18 of 29

INFINITY 482 X PRO

3.4 Serial Line RS-485

3.4.1 RS -232 / RS-485 Network Connection Interface

A standard RS 485 serial interface is provided on both transmitter and receiver of the INFINITY
482 X barrier. The communication parameters are the following:

Mode:

Asynchronous - Half-Duplex

Baud rate:

9600 b/s

Character length:

8bit

Parity control:

No Parity

Stop bit:

3.4.2 RS - 485 Serial Line connections

The way of laying the cable must be “multidrop” type (BUS), and the derivations for units
connection as short as possible. It is possible to use other cabling configurations like:Full Star
type, mixed, Star and BUS type. Connect to the terminal

4 “LO” (“RS 485” – negative data line );

to the terminal

3 “LH” (“RS 485+” positive data line ) and to the terminal 2 “GND1” (data ground

line) of the terminal block MS4 for the Receiver PCB and MS5 for the Transmitter PCB.

Cable for connection of all the heads Rx and Tx

To the maintenance P. C. with MWA TEST Software

Connector

interface
MS4(Tx),

MS5(Rx

Connector

25 pin

N°

Symbol

Function

+13.8

Power supply (13.8 VDC) per for 485/232 converter

GND

Ground data and power supply for 485/232 converter

LH 485

High Line for RS 485

LO 485

Low Line for RS 485

3.4.3 Network Configuration and Signal Repeaters

The interconnection cable concerning barrier management through a remote P.C. must be
suitable for a RS485 serial data line, i.e., it must be a low capacity cable with 3 twisted and
shielded leads (70 pF/mt.) for example, referencing approved cable from Belden,

“Belden

9842”. The maximum distance of the RS 485 connection is 1200 meters.(aprox 3500’). For
longer distances use one or more interface Regenerators (BUS REP), see figure 11 as
amplifiers. The way of laying the cable must be of BUS type, and the derivations for units
connection as short as possible. It is possible to lay down the cable in different manner:full
stellar;mixed, stellar and BUS type, using Repeaters / Regenerators and interface multipliers
(BUS REP), see figure 11. The total number of units (Tx and Rx) that can be connected to the
line are 32, for a higher number of units, it is necessary to use one or more RS- 485 line
regenerator. This is true also in case of cable length lower than 1200 meters. Screen connection
continuity must be guaranteed to properly protect the cited line from induced noise. To this
concern the screen will have to be GROUNDED only in one point, i.e., near the power supply
unit. The power supply voltage to the RS485 / RS 232 interface converter must be delivered by a
local power supply unit, which will have to be placed near the converter. For the central COM-BS
connection, the serial line coming from the barriers can be used directly without any conversion.

Installation Handbook

page 19 of 29

INFINITY 482 X PRO

The figure shows a system which requires a RS 485 serial line with several branch loops(“Star”
network architecture) This architecture is created using a BUSREP as a multiplier.The 4 resulting
sections can be up to 1,200 mt. long each and a maximum of 32 devices,including the BUSREP,
can be connected to each one. The first section includes the seriale line converter

“STAR” NETWORK ARCHITECTURE USING “BUSREP” AS A MULTIPLIER

Line RS- 485

max 1200 mt.

BUSREP 1

Field

Devices

13,8 Vcc

0 Vcc

LOCAL

POWER-SUPPLY

SERIAL LINE
CONVERTER

RS-485/RS-232

RS-485

RS232

Field

Devices

Line RS- 485

max 1200 mt.

Line RS- 485

max 1200 mt.

Field

Devices

Field

Devices

The figure shows a system which requires a RS 485 serial line that is longer than 1,200 metres.
Using two BUSREPs as regenerators, it was divided up into 3 sections each of which was shorter in length.
In this case there are less than 32 field devices, but they can be distributed on 3,600 metres-long line.

Field

Devices

Field

Devices

Field

Devices

BUSREP 1

BUSREP 2

13,8 Vcc

0 Vcc

LOCAL

POWER-SUPPLY

SERIAL LINE
CONVERTER

RS-485/RS-232

RS-485

RS232

3.5 Remote Connection

To interface INFINITY 482x

PRO

barrier it is necessary to convert RS485 to RS232 and also the

cross conversion shown below.

Installation Handbook

page 20 of 29

INFINITY 482 X PRO

4. ADJUSTMENT AND TESTING

4.1 Adjustment and Testing

A built in electronic alignment, parameter programmer and system test tool is found in the
receiver head of the INFINITY 482X

PRO

barrier. This is a very useful system tool to facilitate

installation as well as periodical system equipment maintenance.

4.1.1 Transmitter Set-up

To  access  the  transmitter,  remove  the  radome  cover  by  loosening  and  then  unscrewing  the  6
retaining  screws  and  then  pulling  them  back  carefully    without  removing  them  completely  from
the  radome  cover  assembly.  Once  loosened,  rotate  the  radome  counter-clockwise  (about  20°)
and  lift  the  radome  cover  off  of  the

transmitter’s base assembly. To replace the radome and

close the microwave head, fit the radome the unit with the system logo at 20 degrees askew (to
the left), then rotate the radome 20° clockwise until the central logo is correctly positioned with
the radome cover onto the base assembly. Then tighten the 6 screws.

With the Radome Cover removed:

Check the A.C.. power voltage (24 VAC~) at terminals 1 and 2 on terminal block MS2 (Fig. 7)

of the transmitter.

Disconnect the battery and check battery voltage on both the leads from the unit to ensure

that the battery charger is working by checking presence of DC voltage on the

“fastons” used

to connect the battery, while also verifying the power operation of the charger by measuring
D.C. power supply voltage presence (12VDC ).

Rec

onnect the “fastons” to the battery paying attention to the polarity:

Red wire (terminal 1 of MS2) to battery positive terminal
Black wire (terminal 2 of MS2) to battery negative terminal.

Remark: The system features a battery reversal protection circuit. Any battery polarity

reversal blows the corresponding fuse (F2) thereby protecting the receiver from any
damage. Should this occur, re-install the

“fastons” correctly to the battery observing

polarity after having replaced the blown fuse (T2A).

Select one of the 16 modulation channels available using the hexadecimal switch for this

purpose (within 0 and F). To increase the resistance to any system tampering it is a good rule
to preset different channels for the different barriers installed within the same site. The use of
different channels does not affect the detection ability of the barrier.

Remark: if one RX receives a MW signal from its own transmitter and from another interfering

transmitter simultaneously (for example due to reflections or any other field reason),  it
is  necessary  to  synchronize  the  two  transmitters,  selecting  one  as  Master  and  the
other  as  Slave.  In  this  case  the  modulation  channel  for  the  slave  transmitter  is  the
same selected on the Master regardless its own selection.

It is possible to address each Transmitter Head with  the selectors SW2 and SW3.
To program the address in the TX head: One should  select a number between 01 and 99 (00
means  barrier  100)  by  way  of  using  the  two  rotary  switches  SW2  (units  column)  and  SW3
(tens column).

Installation Handbook

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INFINITY 482 X PRO

4.1.2 Receiver Set-up

To access the receiver, remove the radome cover by first loosening the 6 retaining screws and

then  pull  carefully  the  screws  back  without  removing  them  completely.  Then,  rotate  the
radome  counter-clockwise  (about  20°)  to  the  left.  The  radome  cover  can  then  be  easily
removed.  To close the MW head, fit the radome to  the base assembly positioning the cover
with    the  central  logo  rotated  20°  counter-clockwise  to  the  left.  Rotate  the  radome  clockwise
until  the  central  logo  is  correctly  positioned  and  the  cover  locks  in  place.  Then  tighten  the  6
screws.

With the radome cover removed and the receiver base now accessible;

Check the A.C. power voltage (24 VAC~) at terminals 1 and 2 on terminal block MS2 (Fig. 8)

of the receiver.

Disconnect the battery and check

on the “fastons” the D.C. power supply voltage (13.8Vdc).

Reconnect the “fastons” to the battery paying attention to the polarity:
Red wire (terminal 1 of MS2) to battery positive terminal
Black wire (terminal 2 of MS2) to battery negative terminal.

Remark: The system features a battery reversal protection circuit. Any battery polarity

reversal blows the corresponding fuse (F2) thereby protecting the receiver from any
damage. Should this occur, re-install the

“fastons” correctly to the battery observing

polarity after having replaced the blown fuse (T2A).

To adjust the barrier alignment and settings of the receiver, use the built in tool alignment tool

as follows. Before proceeding with any adjustments, make a preliminary visual mechanical
alignment (follow the instructions below):

a. Once the preliminary visual alignment has been completed, test and ensure that the

receiver’s

tamper switch is activated (Open Circuit). This position should be in alarm as the radome
cover is removed and the receiver is exposed.

b. To use the built-in alignment tool found within the receiver, Place the SW1 to position 1 to

activate the alignment set-up tool.

c. Push button S3. This action will facilitate system adjustment by way of automatically adjusting

the

receiver’s signal level and freezing with a delay of a few seconds the Automatic Gain

Control. In that condition Red

LED’s D9, D10, D11 will be ON and Green LED’s D6, D 7, D8

will be OFF. In this test mode the internal buzzer BZ1 will produce a pulsed sound indicating
that the field signal has reached the proper working level.

d. Loosen the receiver

’s mounting bracket screws allowing for the bracket to be moved by the

installer. Move the receiver horizontally, left to right, looking for the maximum received signal
strength.

e. If, during the alignment, one or more

of the Green LED’s illuminate, this indicates to the

installer that the received signal level has increased compared with the previous position. With
this increase in signal level received, the  pulsed frequency of the audible sound produced by
the on board buzzer will also increase.  When this happens, Push the button S3 to reset the
indicator  and

memory, turning the Green LED’s back off (proper adjustment working level).

Then continue to  move  the receive head  horizontally in  the same direction trying to increase
once  again  the  received  signal  level.  If  during  the  continued  movement  during  system
alignment  as  described  above  where  one  or

more of the RED LED’s extinguish, with the

audible signal from the buzzer decreases in interval, this indicates to the installer that the

Installation Handbook

page 23 of 29

INFINITY 482 X PRO

received  signal  level  is  has  decreased  compared  with  the  previous  measurement.  If  this
occurs, press button S3 to reset the alignment tool and then move back in the other horizontal
direction the head in search of an increased received signal. Repeat this process until there is
no  change  indicating  that  the  maximum  signal  level  has  been  reached,  thereby  setting  the
best  horizontal alignment. Lock in place.

f. Loosen the mounting bracket screws of the transmitter and move the head vertically similar to

the fashion

as described in “b” performing the horizontal alignment, looking just as before for

the maximum received signal on the receiver head as

indicated in the previous point “e”.

g. Once the best alignment is reached (maximum signal available), tighten the bracket screws

both on transmitter and receiver, to block the horizontal movement.

h. Unblock the vertical movement of the receiver and move it slightly upward. Push S3 button

and then move the head downward looking for the maximum signal like indicated in the
previous section

“e”. Once the best vertical alignment is reached (maximum signal available),

tighten all bracket screws to secure transmitter and receiver.

i. Place

the “function switch” SW1 to position 2 to enable the acquisition of the installation

values data and enter its set-up mode. The installation values are the AGC voltage (V RAG)
reference  and  the  modulation  channel  number.  To  complete  this  process  it  is  necessary  to
ensure that we have a stable environment with nothing in the field of view of the barrier device
that  will  change  the  microwave  state  (except,  for  example  the  installer  himself). With a clear
area,  then push button S3 and wait for a  few seconds.

The illumination of three Green LED’s

will signal to the installer that this set up function has been successfully completed. If after
pressin

g S3, three Red LED’s illuminate instead of the three Green ones, this indicates that

while the barrier is functional, the signal received was very low, (too much noise or something
interfering with the clear reception that may be in the MW field). Clear the field of protection
and then push once again the S3 button making absolutely sure that nothing is in the way of
receiving the signal or causes interference.

If once again the three Red LED’s illuminate once

again, the test phase is then aborted and it will be necessary to repeat the alignment phase,
starting from the previous

point “e”, being sure that no obstacles are present in the MW field.

j. Use

the “function switch” SW1 position 3 to access the prealarm threshold set-up mode.

The two prealarm thresholds are set under and over the rest (null) field value. The analysis
process begins when the field value exceeds one of them. If the field value remains between
the prealarm and the alarm threshold continuously for about 40 seconds, a prealarm event is
generated and the alarm relay is activated.
To read the present prealarm threshold value , follow the following instructions:

Rotate decimal switch SW3 (tens column) until the first Red LED (D9) illuminates.

Rotate decimal switch SW2 (units column) until the second Red LED (D10) illuminates.

The reading values will be deciphered therefore  between 01 and 80 (the default value is 15)
Decreasing the threshold value will see the sensitivity increase corresponding to the size of
the beam dimension.

To modify the present value increasing the sensitivity it is necessary to set the two switches
SW3 and SW2 to a  lower value and then push the button S3 to save.

To decrease the sensitivity, it is necessary to set the two switches SW3 and SW2, to a
higher value and then push the button S3 to store and change the setting.

k. Use the

“function switch” SW1 position 4 to adjust the alarm thresholds and enable the

walk test set-up mode. The two alarm thresholds are set under and over the rest field value.
They are higher compared with the corresponding prealarm threshold, and are used to

Installation Handbook

page 24 of 29

INFINITY 482 X PRO

evaluate at the end of the analysis process, if the field value change is enough to generate an
alarm event.
To read the present alarm threshold value, follow the Instructions below:

Rotate decimal switch SW3 (tens column) until the first Red LED (D9) is illuminated.

Rotate decimal switch SW2 (units column) until the second red led (D10) is illuminated.

The read values will  range between  01 and 80 (default value  30). Decreasing the threshold
value will see the sensitivity increase due the  beam dimension.
To modify the present value and thereby increasing the sensitivity it is necessary to set the
two switches SW3 and SW2 to a lower value into the system from the default value, and push
the button S3 to store.

Conversely,  to  decrease  the  sensitivity,  it  is  necessary  to  set  the  two  switches  SW3  and
SW2,  to  a  higher  value  (number)  into  memory,  and  push  the  button  S3  to  store  the  new
value.

During this phase (SW1 position 4) it is also possible to perform a walk test on the system.
The barrier  works using the present thresholds and any change in MW field strength received
(for  example  due  to  an  intruder  moving  within  the  beam),  causes  the  activation  of  a  pulsed
sound  produced  by  the  on  board  buzzer.  The  audible  pulse  frequency  is  proportional  to  the
level  change  of  the  received  microwave  signal.  If  the  pulsed  frequency  sound  increases  it
means that the level change of the received microwave signal is being seen as an increase by
the  receiver  and  therefore  means  that  the  intruder  has  penetrated  deeply  into  the  protection
beam. When at the end of the analysis process an alarm event is generated, the sound of the
buzzer  will  change  to  a  continuous  tone  (not  pulsed).  This  allows  the  technician  by  listening
and  looking  at  the  incursion  into  the  detection  field  to  check  the  actual  dimension  of  the
protection beam as well as also to verify if something moving within or near the protected area
such  as  loose  chain  link  fences  that  may  interfere  with  normal  system  operation  and  cause
nuisance alarms.

l. Use

the “function switch” SW1 position 5 to enable the masking test mode. The two

masking  thresholds  are  set  under  and  over  the  installation  absolute  field  value  (VRAG)
memorized during phase 2 (see previous point j). They are used to check if the changes of the
absolute  microwave  field  received  are  so  large  to  decrease  or  cancel  the  detection  ability  of
the barrier. A thick layer of snow can produce this kind of unwanted change but also someone
can produce them intentionally in order to mask the receiver.
To  read  the  current    masking  threshold  value  as  set  within  the  receiver,  instructions  are  as
follows:

Rotate decimal switch SW3 (tens column) until the first Red LED (D9) illuminates.
Rotate decimal switch SW2 (units column) until the second RED LED (D10) illuminates.

The read value will be shown as a  number  between 01 and 80 (default value 60)
Decreasing the threshold value  will see the sensitivity of the anti masking level  increase. To
modify the preset value increasing the sensitivity (smaller changes produce masking alarm) it
is necessary to set the two switches SW3 and SW2 to a lower value and then push the button
S3  to  store  the  new  setting.  To  decrease  the  sensitivity  (larger  changes  are  required  to
produce  a  masking  alarm),  it  is  necessary  to  set  the  two  switches  SW3  and  SW2,  a  higher
value and then push the button S3 to store.

m. Use

the “function switch” SW1 in position 6 to activate the higher prealarm threshold set-up

mode. During the set-up mode described in section k above,  the two prealarm thresholds are
positioned  at  the  same  value.  By  increasing  the  value  of  the  higher  prealarm  threshold  it  is
possible  to  activate  the  Fuzzy  Side  Target  Discrimination  (FSTD)  system.  This  unique
system  designed  in  the  ERMO  482x

PRO

barriers allows the receiver to filter or completely

reject any unwanted disturbance signals generated from something moving on either side of

Installation Handbook

page 25 of 29

INFINITY 482 X PRO

protection beam, for example: loosely installed, moving fixed fences or bushes. The resulting
beam has an ellipsoidal shape.
To read the present and defaulted prealarm threshold value perform the following:

Rotate decimal switch SW3 (tens column) until the first Red LED (D9) illuminates.
Rotate decimal switch SW2 (units column) until the second Red LED (D10) illuminates.

The read value will be between 01 and 80 (default value is 15), and is set at the same point
as explained in section k.
Increasing the higher prealarm threshold value will decrease the side sensitivity by decreasing
the side beam dimension. To decrease the side sensitivity, it is necessary enter by means of
the two switches SW3 and SW2 a higher value and then push the button S3 to store the new
setting.

Placing

the “function switch” SW1 in position 7 activates the higher alarm threshold

set-up mode. As at previous point

“n”, to activate the Fuzzy Side Target Discrimination (FSTD)

system, it is necessary to increase also the higher alarm threshold (generally the same
quantity changed in previous point n)
To read the preset higher prealarm threshold value perform the following:

Rotate decimal switch SW3 (tens column) until the first Red LED (D9) illuminates.
Rotate decimal switch SW2 (units column) until the second Red LED (D10) illuminates.

The read value will be between 01 and 80 (default value is 30), and is set at the same point.
As explained in section k. Increasing the higher alarm threshold value will cause the side
sensitivity to decrease corresponding to the reduction of the side beam dimension. To
decrease the side sensitivity, it is necessary to set the two switches SW3 and SW2, a higher
value into the system and then push button S3 to store.

n. Use

the “function switch” SW1 position 8 to access the barrier number set-up.To

communicate  to  the  barrier  using  a  standard  RS  485  serial  interface  connection  that  is
provided  within  the  INFINITY  482  X  receiver.  It  is  possible  to  identify  every  barrier  with  a
unique number for every receiver installed. By using this feature it allows one to communicate
via serial data bus with the different microwave barriers installed.

To read the present barrier number within the receiver, perform the following:

Rotate decimal switch SW3 (tens column) until the first Red LED (D9) illuminates.

Rotate decimal switch SW2 (units column) until the second Red LED (D10) illuminates.

The read values will be between 01 and 99. The read value of 00 corresponds to barrier 100,
which in fact is the default value. Note that when a fatal error occurs the system reverts to
using all factory defaults. To modify the present barrier number it is necessary to set the two
switches SW3 and SW2 to a new value and then push the button S3 to store.

o. On the receiver PCB is provided a balanced input were it is possible to connect an external

detector and manage its activity through the head. To activate this function on the RX PCB, it
is necessary to end the alignment procedure, leaving the function selector in position 9
(balanced line active) instead of 0 (balanced line inactive). The alignment procedure is closed
when the radome is closed and the tilt switch is in a vertical position.

Installation Handbook

page 27 of 29

INFINITY 482 X PRO

5. MAINTENANCE AND ASSISTANCE

5.1 Troubleshooting

In case of a false alarm being generated and identified as such, check the parameters recorded
during the Installation phase (on attached Test Sheet). If there are variances with permitted
limits check again the related points in chapter covering the "Adjustment and Testing (4)"

Defect

Possibile Cause

Possibile Solution

Main Power supply LED off Tx
and/or Rx

Power Supply

19 V~

missing

Check out the Primary and Secondary
power supply of the Transformer

Connections broken

Repair the connections

Power Supply circuit failed

Replace the Power Supply Board

Fault Led OFF

Power too high or too low

Check the battery voltage and the
power supply

Temperature too high or too low

Check the temperature of the barrier

Tx Oscillator Fault

Change the Oscillator

Tx or Rx failures

Change the Electronic board

Alarm Led OFF

Movement or obstacles in the
protected field

Ensure that the protected field is free
from obstacles and free from objects
and/or person moving. Secure moving
objects.

Barrier not properly alligned

Redo the alignment procedure as
described in points: a,b,c,d,e,f,g,h,I
found in Chapter 4.1.2

Wrong channel selections

Repeat the Channel acknowledge
procedure as described in point j of
charter 4.1.2

Alarm of sensor connected on the
balanced line input.

Check  out  the  sensor  connected  to
the  balanced  line  input.  If  no  sensors
are  connected  ensure  to  finish  the
installation  with  selector  SW3  in
position  0.  See  chapter  4.1.2  point  q,
se  non  vi  è  sensore,  terminare
l’installazione con SW3 in posizione 0
Capitolo 4.1.2 punto q

High AGC Voltage

Barrier not properly alligned

Redo the alignment procedure as
described in points: a,b,c,d,e,f,g,h,i as
outlined in Chapter 4.1.2

obstacles in the protected field

Remove obstacles

Too low signal transmitted

Check the transmitter

Rx circuit fault

Replace the Rx circuit

Rx MW part fault

Replace the RX MW part

Tamper Led OFF

Microswitch open

Check the microswitch position

Tilt bulb in wrong position

Check the position of the tilt bulb

Fault Led Off only on TX circuit

BF Oscillator Fault

Change the TX circuit

MW oscillator Fault

Change the MW part

Installation Handbook

page 28 of 29

INFINITY 482 X PRO

6. CHARACTERISTICS

6.1 Technical characteristics

TECHNICAL CARACTERISTICS

Min

Nom

Max

Note

Frequency

9.46 GHz

10.6 GHz

Maximum power

20mW

500 mW

e.i.r.p.

Modulation

on/off

Duty-cycle

50/50

Number of channels

Range:

ERMO 482X PRO/50

50 m

ERMO 482x PRO/80

80 m

ERMO 482x PRO/120

120 m

ERMO 482x PRO/200

200 m

Power supply ( V )

17 V

19 V

21 V

Power supply ( V

)

11.5 V

13.8 V

16 V

Curent absorption TX in surveillance ( mA )

159

Curent absorption TX in alarm ( mA )

150

Current absorption RX in surveillance ( mA )

170

Current absorption RX in alarm ( mA )

160

Current absorption TX in surveillance ( mA

)

Current absorption TX in alarm ( mA

)

Current absorption RX in surveillance ( mA

)

Current absorption RX in alarm ( mA

)

Housing for battery

12Vn/1.9Ah

Intrusion alarm contact (TX+RX)

100mA

C-NC

Radome removal contact (TX+RX)

100mA

C-NC

Faut contact (TX+RX)

100mA

C-NC

Intrusion alarm (TX+RX) Green LED ON

Not active

Radome removal (TX+RX) Green LED ON

Not active

Fault alarm (TX+RX) Green LED ON

Not active

Threshold adjustment

On board +

Weight without battery (TX)

2930 g

Weight without battery (RX)

2990 g

Diameter

305 mm

Deep, brackets included

280 mm

Working temperature

-40 °C

+65 °C

Performance level

3°

Box protection level

IP55

Installation Handbook

page 29 of 29

INFINITY 482 X PRO

6.2 Functional Characteristics

Analysis Signal processing according to behavior model.

Analysis

Modulation channel frequency processing (16 channels)

Analysis

Absolute received signal value processing, To guarantee the S/N optimal value (Low level
signal).

Analysis

Absolute received signal value processing, for fault detection, behaviour, deterioration,
masking.

Analysis

Signal trend to select various cases of AGC behavior.

Analysis

DC Power supply voltage processing (battery charger), High or Low.

Analysis

AC Power supply voltage processing, Presence or Absence.

Analysis

Ambient temperature processing, detection of permitted working range

Analysis

Tampering of Tx and Rx heads.

10)

Analysis

Stand-by input control, for monitor adjustment and historical inhibition, living always active
the alarm status generation.

11)

Analysis

Test input control, to procure on receiver the alarm relay activation in case of positive
result.

12)

Analysis

Auxiliary balanced line allowing connection of additional sensor. Over two connection
conductors between sensor and Tx or Rx head. The capability is to discriminate the
following events: alarm, tamper, fault , line cutting, line short circuit

13)

Activation Three static relay output for alarm, tamper, fault on receiver and transmitter.

14)

Activation Three signalling LED for alarm, tamper, fault on receiver and transmitter

15)

Activation Synchronism signal output of transmitter for the other transmitters synchronization

16)

Activation Synchronism signal input on transmitter for the local transmitter synchronization

17) Availability Output terminal block for the battery 12 V/2 Ah connection in case of mains absence.
18) Availability 16 position switch for modulation channel frequency choice. During the installation phase

the receiver identifies and stores automatically which channel must be used during
working phase.

19) Availability Lithium battery on transmitter and receiver for data storage, also in case of power supply

completely OFF

20) Availability Calendar watch on transmitter and receiver, for the event storage timing. Booth for analog

events monitoring and historical events record.

21) Availability Historical event records on transmitter and receiver, for the last 256 events (RX) 128 (TX)

occurred, with the value (if any), data, time and event types indication. The data acquisition
can be done with MWATEST software, the data will be stored in historical files (for read
and print).

22) Availability Up to 100 event records (2.5 seconds each) stored in receiver memory, related to detected

analog signal if higher then user preset value (called monitor threshold).

23) Availability A default parameters set, for transmitter and receiver, to use whenever absent or if the

self diagnosis detects a wrong parameter.

24) Availability connector on transmitter and receiver, for external measures
25) Availability P. C. connector on transmitter and receiver, for serial line RS485 connection, used with

software MWATEST for tests, settings and management of barrier.

Document Outline