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ocBridge Plus

1. FEATURES 

Wireless sensors’ receiver ocBridge is designated for connecting 

compatible Ajax devices to any third party wired central unit (panel) 

with a help of NC/NO contacts. Ajax system has two-way connection 

with the sensors which enables its functioning in two modes: active 

mode and passive mode. When the system is in passive mode, wireless 

sensors switch to power-saving mode, which makes it possible to extend 

significantly battery life. 

The equipment specifications can be changed by manufacturer without 

prior notice!  

2. SPECIFICATIONS

SPECIFICATION

MEANING

Type

wireless

Uses

indoors

Radio signal power

20 mW

Radio frequency band

868 or 915 MHz, depending on the 

country of distribution

Maximum distance between wire-

less sensor and receiver ocBridge  2000 m (open area) (6552 ft)  
Maximum number of connected 

devices

100

Radio channel jamming detection

available

Sensor’s efficiency control

available

Alerts and events logs

available

External antenna connection 

available

Firmware update

available

Tamper protection

available

Number of wireless inputs/outputs 13 (8+4+1)/1

Power supply

USB (only for system setup); (digital 

input) +/ground 

Power supply voltage

DC 8 – 14 V; USB 5 В (only for system 

setup)

Operation temperatures range

from -20°С (-20°F) to +50°С (+122°F)

Operation humidity

up to 90%

Dimensions

95 x 92 x 18 mm (3,74 x 3,62 x 0,71 in) 

(with antennas)

 3. COMPONENTS

Wireless sensors’ receiver, battery СR2032, manual, instalation CD.

 INDICATION

DESCRIPTION

Green light is permanent, red 

light does not blink

OcBridge is in configuration mode. In con-

figuration, there are Pages “Radio zones” 

or «Events memory» are opened. During 

this period, the sensors do not receive 

the responses to the alarm signals and 

statuses. 

Green - blinks once per second 

(before, the green light was 

permanent), and the red - 

blinks during 30 seconds

New radio set unit detection mode is on.

The red blinks momentarily 

A moment when the ocBridge receiver 

register a new device 

The green - blinks for 10 min-

utes and the red is permanent; 

no red light 

Searching for all devices after the previ-

ously saved PC configuration is download-

ed, system is armed; system is disarmed.

No green and red light 

The receiver is in in the operating mode, 

the system is disarmed

Permanent red light

The receiver is in operating mode, the 

system is armed.

Permanent green light, the red 

light is blinking very fast 

Radio signal is tested in order to connected 

sensor or other device.

Green light blinks momentarily  New detectors' polling period started, 36 

seconds by default.

Red/green- blinks momentarily Failure is detected

  

ATTENTION!  

If the receiver ocBridge is connected to the wire central unit, the digital 

input «IN» (wire input) MUST have connection with relay output or 

transistor output from the central unit, and this output must be inverted 

when the central unit is being armed or disarmed. Detailed description 

of connection to the central unit described in paragraph 6.5.

1 –  ocBridge main board 

2 –  terminal strip for 

connection to the 

main zones of the 

central unit

3 –  8 red lights 

indicators of the 

main zones 

4 –  mini USB connector

5 –  red and green light 

indicators (consult 

the table for the 

description)

6 –  «opening» tamper 

button 

7 –  green power supply 

indicator 

8 –  battery for backup 

saving

9 – IN digital input 

10 – power supply 

switch

PICTURE 1. ocBridge wireless sensors receiver

PICTURE 2. Selecting the COM port for connecting the 

receiver to the computer

11 –  terminal strip for connection to the central unit service zones

12 – 4 green indicators of the service zones 

13 – «breakdown» tamper button (on the reverse of the main board)

14 – antennas

4. SENSORS’ HANDLING 

4.1. Connect the ocBridge to the computer with a help of USB cable (type 

А–miniUSB) through connector «4» (PICTURE 1). Turn on the receiver 

with the switch «10» (PICTURE 1).

If it is the first connection, wait until the system identify new device and 

install the software drivers. If the drivers were not installed automatically, 

you will have to install the driver-program vcpdriver_v1.3.1 manually. 

There are different versions of this program for x86 and x64 Windows 

platforms. You can find two files: VCP_V1.3.1_Setup.exe for 32-bit 

Windows operating systems and VCP_V1.3.1_Setup_x64.exe – for 64-bit 

Windows operating systems on the CD. If the wrong driver was installed, at 

first, it is necessary to uninstall it (through Windows programs uninstall), 

then reboot the computer and install the necessary software driver. Also, 

NET Framework 4 (or newer version) should be installed. After drivers 

instalation, launch the program «Ajax ocBridge configurator». Paragraph 

5 of this manual provides the details about the program «Ajax ocBridge 

configurator» functioning. 

In the program settings in «Ajax ocBridge configurator» settings (menu 

«Connection» - «Setting»), select COM port that is chosen by the system 

for the receiver (PICTURE 2), click «OK» and then the «Connect» button. 

«Ajax ocBridge configurator» is ready to work with the ocBridge receiver.

Light «5» (PICTURE 1) indication description:

1 2

4

6

5

8

7

10

9

11

13

14

4.2. All devices that you want to connect to the ocBridge must be registered 

with a help of «Ajax ocBridge configurator». In order to register the 

sensors, it is necessary to create radio zones in the configurator in case 

of it had not been done before. To do this select the “Radio zone” and click 

«Add zone» button (PICTURE 3). 

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