User's Manual

Table Of Contents
Technical Manual Installation
35- 06/2016Kaba Remote Reader 91 15-AM (US/
CAN)
5.3.2.2 Connection RS-485
Lines A and B are arranged as a twisted wire pair.
Lines A and B must not be crossed.
1
A
B
C
RS-485
A
B
C
RS-485
2
1 Host control device 2 Compact Reader/Remote Reader
Do not ground the compact reader/remote reader.
5.3.2.3 Using several remote readers
If several Kaba Remote Reader 91 15 are to be connected to a host control device, ei-
ther bus wiring or star wiring can be used.
See:
Star wiring
Bus wiring
5.3.2.4 Star wiring
Max. eight devices can be operated on a party line.
Power supply and data line in one cable: Maximum cable length per compact reader
or stub: 20m
Power supply and data line in separate cables: Maximum data line length per com-
pact reader or stub: 100m
4
,7
4
,7
4
,7
4
,7
4
,7
120 Ω
RS-485
2
1
3
1 Host control device
2 Distribution List
3 CompactReader
Installing terminating resistors
1. Set the terminating resistor to 120Ω on the host control system (1).
DIP Switch