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Installation | en
17
Bosch Security Systems B.V.
Installation manual
2021-02 | 01 | F.01U.389.837
2.3
Assembly preparation
1.
Lay the connection cables according to the local conditions and prepare them for
connection.
2.
Remove the 8-pin screw / plug-in terminal from the reader module and connect the wires
according to this graphic:
6
5
8
7
4
3
2
1
i
Notice!
The wiring must be carried out in a de-energized state. In other words, the operating voltage
may only be switched on after the reader has been fully installed!
Connection terminal ST1
(8 pin screw / plug terminal, voltage supply / interfaces)
PIN number
Description
1
RS485 data “A”
2
RS485 data “B”
3
Do not connect
4
Do not connect
5
Do not connect
6
Do not connect
7
DC- (0V)
8
DC+ (from 8V to 30V)
Wire diameter
Stranded wire
AWG 28 - 16
Solid wire
AWG 28 - 16
Cable stripping length 6 to 7 mm
