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en | Installation instructions
4.2.4
SE coordinator/SE receiver wiring notes
Connect the SE receivers to the SE coordinator as a connected series of point-to-point (multi-
drop) nodes. The recommended cable wiring can be found in the Wiring Guidelines table.
The SE coordinator and SE receivers communicate with each other using the RS-485 interface.
The communication connector is identified by their 3 terminal points, namely A, GND and B.
The recommended data transmission speed is 19200 bps @ 1km (default) and 115 kbps @
500m. Please refer to the table below for the full range of data transmission speeds:
Data transmission speed (bps)
19200
38400
57600
115200
Tab. 4.2: Range of data transmission speeds
The recommended wiring for RS-485 communication is 24-AWG Cat5e using 4-conductors,
with unshielded twisted pair for indoor installations, and shielded twisted pair for outdoor
installations.
Figure 4.3: RS-485 Connector
2018.03 | SE3v1.0 | DOC
Range (m)
1000
900
800
500
Hardware Installation Manual
Security Escort
Robert Bosch (SEA) Pte Ltd
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