Kaba B-Net 93 60 - RS485 Interface (BEX302)

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
4PLI
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