Access control applications
3.12 EST3 Installation and Service Manual
Power supply
Other factors
Hardware configuration
SDU programming
ACDB/KDC operation
X
X
X
Control panel
CRC
3-SAC
SITE
Entrance
turnstile
SAC bus
Perimeter fence
Main building
Emergency
exit
Building
entrance
Inside
reader
Outside
reader
Lock circuit Reader circuit
Figure 3-2: Anti-passback
Hardware configuration
The control panel must contain a 3-SAC Security Access Control
module. The 3-SAC module supports the SAC bus. Power for
the CRC can be taken from the 3-PPS/M and routed with the
data lines in a cable composed of two twisted-pair wires (the
SAC bus).