15
4100-5116 Expansion Signal Card
Note 2
SOURCE NAC
B+
B-
A+
A-
SPS/RPS/XPS NAC
Note 6
Notes 3, 5
Note 1
4100-5116 Expansion Signal Card
Note 2
NAC1
B+
B-
SHL
D
IN
1
+
IN
1
-
P3
OUT
IN
EOLR
P4
IN1
IN2
IN
2
+
IN
2
-
NAC2
NAC3
Note 4
B+
B-
SHL
D
B+
B-
IN1
IN2
NAC1
B+
B-
SHL
D
IN
1
+
IN
1
-
P3
OUT
IN
EOLR
P4
IN1
IN2
IN
2
+
IN
2
-
NAC2
NAC3
Note 4
B+
B-
SHL
D
B+
B-
IN1
IN2
Notes 3, 5
Provide wiring to power supply-mounted DC NACs as shown in Figure 9.
Figure 9. Wiring to Power Supply NACs
Wiring,
Continued
Wiring to Power
Supply NACs
1. Up to 5 XSIG cards are allowed per source NAC.
2. XSIG cards must be in same location as the source NAC.
3. The source NAC does not supervise for shorts during standby; short circuit supervision is provided by
the XSIG NACs.
4. The EOLR Jumper P3 is installed in the IN position (2-3) for the last card in the chain.
5. The power supply source NAC is always wired in a Class B configuration even when the NAC is
configured as Class A.
6. All wiring is between 18 AWG (0.8231 mm
2
) (minimum) and 12 AWG (3.309 mm
2
) (maximum).
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