Cisco Systems OL-20932-02 Manual De Usuario
1-9
Cisco Physical Access Gateway User Guide
OL-20932-02
Chapter 1 Overview
Door Device Wiring Requirements
Door Device Wiring Requirements
The wires used for an access control door depend on the devices installed at the door. Before installing
the wiring for an access control system, do the following:
the wiring for an access control system, do the following:
•
Determine the number and type of door devices used at each door (as shown in
•
Determine the number and type of wires used for each device, based on the descriptions in
.
•
Determine the length of the wires based on the distance between the device and the access control
Gateway, or optional module (such as a Reader, Output or Input module).
Gateway, or optional module (such as a Reader, Output or Input module).
Figure 1-6
Air Return Using Ceiling Space or Using Ductwork
documentation for more information and to verify the following requirements.
Table 1-2
Wires Used for Typical Door Devices
Function
# of
Wires
Wires
Typical
Wire
Gauge
Wire
Gauge
Type
Use
Request to Exit
2
22
Input
Used to exit the door. This may be replaced by an
egress crash bar if the exit is not alarmed.
egress crash bar if the exit is not alarmed.
Door position
switch
switch
2
22
Input
Used to determine if door is open or closed. This
device can cause a door forced open alarm after a
time out. This devise is usually supervised.
device can cause a door forced open alarm after a
time out. This devise is usually supervised.