32
en | Hardware setup
Divar 700 Series
F.01U.246.471 | v3.4 | 2011.06
Installation and Operation manual
Bosch Security Systems
Figure 4.15
RS485 connector
Table 4.5
RS485 pin definition
The recommended cable diameter is AWG 28-16 (0.08-1.5 mm
2
).
To communicate with the controllable camera, select a port number that is the same as the
input number to which the camera is connected (for example, configure a controllable camera
to port 16 if it is connected to channel 16).
4.12
Biphase port
Use the Biphase port for connecting controllable Biphase-compatible cameras. Five Biphase
outputs are provided for dome cameras and pan, tilt, and zoom control. The screw terminal
connection board supplied with the unit simplifies all Biphase connections to the unit and
protects the port against transient over-voltage.
Specifications
Output impedence: 128 ohm
Overvoltage protection: ±40 V maximum
Differential voltage amplitude: 1 V minimum, 2 V maximum with a characteristic load of
220 ohms connected across the differential output
Cable length: 1.5 Kilometers maximum
Recommended cable: Belden 8760
Cable cross section: AWG 26-16 (0.13-1.5 mm
2
)
Number of loads per output: 4 maximum
Signal name
Pin number
Description
TX -
1
Data transmission
TX +
2
Data transmission
GND
3
Shield
- | + | G
RS
485
MAL
OUT
N0 | C | NC
MAL
OUT
N0 | C | NC
