User's Manual
Table Of Contents
- Contents
- 1 About this Document
- 2 Grouped safety messages
- 3 Product Description
- 4 Design and function
- 5 Installation
- 5.1 Installation conditions
- 5.2 Installation layout (example)
- 5.3 Installation lines
- 5.4 Mounting the device and extension modules
- 5.5 Connections
- 5.6 Configuration
- 6 Start-up
- 7 Maintenance
- 8 Troubleshooting
- 9 Packaging/Return
- 10 Disposal
- Index
Installation Technical Manual
48 - 06/2016 Kaba Remote Reader 91 15-AM (US/
CAN)
5.6.3 Set RS-485 termination resistances
The connection architecture determines the terminating resistors.
1. Set terminating resistors in accordance with the following description.
Star wiring
4
,7
kΩ4
,7
kΩ4
,7
kΩ 4
,7
kΩ4
,7
kΩ
120 Ω
RS-485
2
1
3
1 Host control device (Kaba access manager AM)
2 Distributor (e.g. screw terminal)
3 Terminating resistors Kaba Remote Reader 91 15
1. Set the terminating resistor to 4.7kΩ on all Kaba Remote Reader 91 15 (3).
DIP switch number Position Effect
1 ON Terminating resistance 4.7kOhm (star wiring)
2 OFF open
1. Set the terminating resistor to 120Ω on the host control system (1).
Bus wiring with 1 bus
120ΩOPENOPENOPENOPEN
RS-485
120 Ω
1
2
3
3
1 Host control device (Kaba access manager AM)
2 Kaba Remote Reader 91 15
3 Terminating resistors
1. Set the terminating resistor to 120Ω on the last Kaba Remote Reader 91 15 of the
bus wiring.
DIP switch number Position Effect
1 ON Terminating resistance 120Ohm
2 OFF open