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
Technical Manual Installation
37- 06/2016Kaba Remote Reader 91 15-AM (US/
CAN)
5.3.2.5 Bus wiring
A maximum of eight devices can be operated on a party line.
Maximum total length of data lines (incl. stubs): 1200m
A stub itself may be a maximum of 100m in length.
The length of the party line can be increased using a repeater.
5.3.2.5.1 Bus wiring with 1 bus
120ΩOPENOPENOPENOPEN
RS-485
120 Ω
1
2
3
3
1 Host control device
2 Compact Reader or Remote Reader
3 Terminating resistors
Installing terminating resistors
1. Set the terminating resistor to 120Ω on the host control system (1).
2. On the last device in the bus wiring, set DIP switch 1 to ON (120Ω),
and DIP switch 2 to OFF (open).
3. On all other devices in the bus wiring, set DIP switch 1 and 2 to OFF (open).
Set peripheral address
1. Assign unique addresses to the devices connected to the bus.
Set peripheral address [}5.6.4]
Connecting shielding
1. On the host control device connect the shielding of the RS-485 cable (blue) to
the ground.
Do not ground the compact reader/remote reader.
1
A
B
C
RS-485
A
B
C
RS-485
2
1 Host control device 2 Compact Reader, Remote Reader
2. Connect all shieldings of RS-485 cables (blue) used in the bus to each other.