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460989001B
Overview of Elevator Control
External (Cabinet) Tamper
An external cabinet tamper is configured by connecting a tamper device
across pins 3 & 4 of J18 on the SDC. If not used, a jumper must be installed
across pins 3 & 4 of J18.
Note:
Power fail is not supported on the SDC; therefore no jumper is
required. This is labeled in the diagram as “NOT USED.”
External tamper wiring
Note:
Input status LEDs will be off when the tamper device is in closed
position or the jumper is installed.
Power and Communications
For its power input, the SDC requires a 12 to 24 VDC ± 10% power source
for it input power.
Wire the power input with 18 AWG (minimum) twisted pair cable.
Power source wiring
Notes:
Be sure to observe polarity.
Do not use an AC transformer to directly power the Single Door
SDC Interface Module.
Intelligent System Controller
Output
Control
Module
Elevator
Reader
(inside cab)
Input Control
Module
Access
Control
System
Elevator Control Room
Up to 128 Outputs -
eight Output Control
Modules
Up to 128 Inputs -
eight Input Control
Modules
Single Reader Interface
Single
Reader
Interface
Module
Single
Reader
Interface
Maximum:
4000 feet
(1219.2 meters)
5 conductors
Power Source
Requirements
Current
DC power source
Isolated, non-switching,
regulated DC power
700mA for 12VDC
350mA for 24VDC
