GE Security EST3 - Page 104

Access control applications
3.22 EST3 Installation and Service Manual
Control panel
3-SAC
Signature
Controller
CPU
CRC
Card
reader
CRCXF
Transformer
Elevator cab
Operator
panel
Elevator controller
Electrical room
Elevator room
Floor enabling
circuits
SIGA-CR
SIGA-CR
SIGA-CR
Power supply
Hardware configuration
SDU programming
ACDB/KDC operation
Other factors
X
X
X
X
Elevator
traveller cable
Signature data circuit
SAC bus (using two
spare twisted pairs)
Elevator line
Figure 3-6: Access control and elevators