Setup guide

BX2

Connecting external devices

The BX2 uses 485-Bus networking to interconnect Dedicated Micros products and accessories. Storage devices

can be connected to the SCSI port, and telemetry cameras can be connected to the serial ports. Devices that

can be connected to BX2 include:

Telemetry cameras

Storage devices

Ethernet networks

Alarms and Relays

Audio devices

485-Bus devices

Connecting telemetry cameras

Coaxial telemetry

The unit supports numerous protocols to control coaxial, serial (RS-232/485) and 485-Bus telemetry.

A remote keyboard can be connected to the unit to gain control of the telemetry function of the connected

camera, refer to Connecting 485 Bus devices.

The telemetry protocol type can be selected within the ‘Camera Setup’ and ‘Serial Telemetry Ports’ menus.

Coaxial Telemetry - Camera Setup Menu.

Serial Telemetry - Serial and Telemetry Ports Menu.

Serial telemetry

The unit currently supports a number of PTZ / dome protocols using serial telemetry, as well as various RS232

matrix protocols.

Serial telemetry requires a twisted-pair connection from the unit’s serial port to the dome.

Serial telemetry can be either star congured (from the unit serial port to each receiver), or delta congured

(each receiver are linked (looped) together), or a combination of the two. Therefore each receiver needs to be

addressed according to its camera number consult your receiver documentation for details.

Note:

In delta conguration the maximum distance is a 1000m (3200ft). The distance with star

congured telemetry will be reduced signicantly.

Serial telemetry connection

There are four, 9-Way D-Type serial ports on the unit. Serial 1 and 2 are allocated as full RS-232 only, with Serial

3 (BUS A) and 4 (BUS B) able to support RS-232, RS-422 and RS-485.

The 9-Way D-Type has the following pin connections and RS-232, RS-422, RS-485 pin allocation:

Note:

The serial telemetry connection must be congured for the correct type of dome in the ‘System

Options’ menu.

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