6 Appendix
6.1 RS-485 Addressing and Connections
The Philips ProBridge (CBR-PB2-PHILIPS) is not an addressable device and requires no user settings. The device simply acts as an interpreter, translating the remote telemetry commands into a format useable by the P/T/Z controller.
Each camera input, whether a fixed camera or a Pan/Tilt/Zoom (P/T/Z) unit, is connected to a Kalatel unit input. The Kalatel unit has an RS-485 network address, and so does the P/T/Z camera receiver. This address determines when the telemetry receiver responds to commands sent over the RS-485 data line. Consult the PTZ installation manual for specific instructions on setting these addresses.
The CBR-PB2-PHILIPS can be used in conjunction with multiple Kalatel units, and/or keypads controlling the domes and the Kalatel units. Since the ProBridge unit is a terminated device, care should be used when using this unit in a mixed application.
The RS-485 network is a multi-drop wiring configuration of maximum length 3,000 feet (1000 meters). RJ45 cable and RJ45 connectors are used for most hookups (see the installation/connection diagram). Some equipment manufactured by Kalatel may use flying leads, terminal blocks, or other types of connections.
Most units have looping RS-485 network connectors. Either socket can be used. Do not use third-party RS-485 equipment without first consulting Kalatel Technical Support for information on compatibility with other Kalatel equipment.
RS-485 Wire Specification
#24 AWG, twisted pair with shield (2-wire). Less than 16 pF per foot, nominal.
Less than 25 ohms per 100 foot, nominal. 2-wire: Belden 9842
4-wire: Belden 9844
Philips ProBridge | 13 | 0150-0241B |
NOTE