Simplex XPS Installation Instructions Manual page 15

Step 5. Installing the XNAC
The 4100-5115 Expansion NAC Module (XNAC) is an option board that provides three NACs in addition to the three NACs already on the XPS. The
XNAC plugs onto the XPS.
If you are not installing an XNAC, skip this section and continue on to
The XNAC
The XNAC has three NACs, each rated at 3 A. As on the XPS, there is one status LED for each NAC.
Mounting the XNAC
The XNAC mounts to the top of the XPS as shown in the instructions and Figure 14.
Note: The XNAC cannot be installed on an XPS that is mounted to a 4100-2301 expansion bay that is used in a non-4100U/4100ES back box (a back
box with PID series 2975-91xx).
1. Insert plastic standoffs (202-078) and a metal standoff (202-077) to the XPS as shown in Figure 14.
2. Plug J1 on the XNAC into P3 on the XPS using a header (166-549). The holes on the edges of the XNAC should be aligned with the tops of the
standoffs.
3. Secure the XNAC to the standoffs using four screws.
4. Connect the XNAC's signal power harness to P1 on the XPS.
Wiring the XNAC
The XNAC uses the same wiring rules as TB1 on the XPS. Refer to
XNAC cannot be used for auxiliary power.
page 15
Step 6. Troubleshooting.
Figure 14: Mounting the XNAC
Step 4. XPS field wiring to wire the XNAC to notification appliances. Note that the
XPS and XNAC Installation Instructions
574-772 Rev. Q