Primary And Secondary Wiring Connections - Nice HySecurity SlideSmart DC Series Installation And Programming Manual

PRIMARY AND SECONDARY WIRING
CONNECTIONS
1. As shown in Figure 63, connect a two-pair
twisted shielded communications cable to the
DUAL GATE inputs in each unit. The inputs
are located near the base of the Smart DC
Controller. Be sure to connect the wires in pairs
to the same terminal ports (A-A, B-B, and COM
to COM) on both units. See Table 15.
* Only ground to one unit. Do NOT attach the
shield wire to both units.
Primary
EXIT
LOOP
BLOCK
EXIT
IN OBS
LOOP
OUT OBS
LOOP
CENTER
LOOP
SENSOR
1
SENSOR
COM
+ 24 V
EMERG
OPEN
SHOW
LEDs
Shielded cable
(2-pair, twisted)
NOTICE
Use a 2-pair, twisted, shielded cable with one pair of wires used to connect A-A and B-B terminals
between the two boards. The other pair will connect the Common terminals. The shield should
then be grounded on one end to one of the operators.
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Table 15. Primary-Secondary Wiring
Primary
A
COM
B
Conduit (in the ground)
Figure 64. Primary-Secondary Pair Wiring Connections
BI - PARTING GATE SYSTEMS
2. Attach a ring terminal to the shield wire
and connect it to the Smart DC Controller's
convenient ground screw. Refer to Figure 63.
NOTICE
Connect the ground shield wire to only one
operator, not both.
Secondary
COM
Shield wire to Ground*
EXIT
LOOP
BLOCK
EXIT
IN OBS
LOOP
OUT OBS
LOOP
CENTER
LOOP
SENSOR 1
SENSOR
COM
+ 24 V
EMERG
OPEN
SHOW
LEDs
Shield wire
Note: Do not
connect the
ground shield
wire at both ends.
A
B
Secondary
Ground