Access control applications
3.48 EST3 Installation and Service Manual
Power supply
Other factors
Hardware configuration
SDU programming
ACDB/KDC programming
X
X
X
X
Control panel
CRC 2
3-SAC
3-PPS/M
SAC bus
CR outside
CRC 1
Entrance 2
Entrance 1
Controlled room
CR inside
CR outside
CR inside
Figure 3-19: Two-person rule
Card reader
This application works best with card readers that support dual
LED control. The CRC uses the second LED (or LED state) to
signal the cardholder that a second person must badge in or out
of the controlled area.
Hardware configuration
The control panel must contain the following rail modules:
• 3-SAC Security Access Control module
• 3-PPS/M Primary Power Supply module
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