Simplex XSIG Installation Instructions Manual page 11

Wiring to amplifiers with constant supervision NACs
Provide wiring to an amplifier with constant supervision NACs as shown in Figure 9.
* 4100-5116
Note:
1. Up to five XSIG cards are allowed on each power supply. These can be distributed among NACs or all five can be connected to one NAC.
2. XSIG cards must be in the same location as the source NACs.
3. The last XSIG card in the chain requires EOLR Jumpers P3 & P4 to be installed in the IN position (2-3); otherwise, jumpers are installed in the
OUT position.
4. The source NAC is dedicated to providing a signal to the XSIG card and is wired in a Class B configuration.
5. The minimum wire gauge is 18 AWG (0.8231 mm²).
6. Remove the 10k, 1/2 W EOL resistors from the amplifiers and XSIG Cards that accept the Constant Supervision NAC modules.
page 11
Figure 9: Wiring to an amplifier with constant supervision NACs
Expansion Signal (XSIG) Card Installation Instructions
579-516 Rev. J