Cisco Physical Access Gateway Quick Start Manual page 9

The following items are shown in Figure 4:
Type
Power
1
CAN interfaces
2
CAN terminator
3
Serial Interface
4
5 Wiegand interface
6 Input interfaces
Description
Two-pin connector for Voltage In (VIN) and Ground (GND) to connect a 12 to 24 VDC
external power source.
A 3-wire CAN bus is used to connect additional modules.
Modules are connected using the CAN1 interface. The CAN2 interface is not
Note
supported in this release.
The CAN terminator switch should be set to ON for the last device in a CAN wiring bus.
This switch should be set to OFF for all other devices in the CAN bus.
The RS-485 interface is not supported in this release.
This interface can be configured as the following:
• One 10-pin Wiegand/clock and data reader interface to connect a single door reader.
• Two 5-pin Wiegand/clock and data interfaces to connect two door readers (for
installations where a 5-pin interface is sufficient).
Disconnect power from the Gateway or Reader module before connecting reader
Note
devices to the modules. Connecting a reader device when the modules are powered
can cause the Gateway or Reader module to malfunction.
Three input interfaces used to sense the contact closure. Each input can be configured as
supervised or unsupervised and can be configured to sense a Normally Open (NO) or
Normally Closed (NC) contact.
• An unsupervised input senses a simple contact closure state, including Normal or Alarm.
When connected to open contacts, the terminal voltage range is 4V to 5V. For closed
contacts, the voltage range is 0V to 0.7V.
• A supervised input senses four contact states, including Normal, Alarm, Open and Short.
These inputs require 1K End-Of-Line (EOL) termination resistors installed at the
contacts (two resistors are included in the accessory kits for each Input port). Refer to
the Cisco Physical Access Gateway User Guide
resistors.
for instructions to install the termination
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