User Manual B-Net 93 60
Mounting and installation
01/2006
© Kaba Benzing GmbH
31
5.6.6
RS485 interface (BEX302)
Remark
The RS485 interface can either be used as 2- or 4-wire partyline to the host or as
2-wire sub-partyline for the connection of subterminals.
Fig. 18: BEX302 front view and rear view
Jumper position:
2-wire
4
PL
I
4-wire
4
PL
I
4
PL
I
Fig. 19: BEX302 jumper assignment
4-wire partyline to host (recommended)
Clamp
BEX 101
Specification Function
(from
the terminal)
PIN assignment
RJ -45 connector
6 GND
Signal
ground
Shield
5
A TxD
A-line Transmit 4-wire
6
4
B TxD
B-line Transmit 4-wire
3
3
A RxD
A-line Receive 4-wire
2
2
B RxD
B-line Receive 4-wire
1
1
C
Potential compensation (C)
7+8
2-wire partyline to host
Clamp
BEX 101
Specification Function
(from
the terminal)
PIN assignment
RJ -45 connector
6 GND
Signal
ground
Shield
5
4
3
A RxD
A-line 2-wire
2
2
B RxD
B-line 2-wire
1
1
C
Potential compensation (C)
7+8