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3-4
Cisco Physical Access Gateway User Guide
OL-20932-02
Chapter 3 Connecting a Cisco Reader Module
Physical Overview and Port Description
Figure 3-4 Cisco Reader Module Ports and Connectors: Top View
1 Power
Two-pin connector for Voltage In (VIN) and Ground (GND) to connect a 12 to 24 VDC
external power source.
2 CAN interfaces
A 3-wire CAN bus is used to connect additional modules.
Note Modules are connected using the CAN1 interface. The CAN2 interface is not
supported in this release.
3 CAN terminator
The CAN terminator switch is set to ON for the last device in a CAN wiring bus. This switch
is set to set to OFF for all other devices in the CAN bus.
4 Serial Interface
The RS-485 interface is not supported in this release.
5 Wiegand Interface
One 10-pin Wiegand/clock and data reader interface. This interface can be configured as
two 5-pin Wiegand/clock and data interfaces for installations where a 5-pin interface is
sufficient.
Note Disconnect power from the Gateway or Reader module before connecting reader
devices to the modules. Connecting a reader device when the modules are powered
can cause the Gateway or Reader module to malfunction.
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