Chapter 1: Installation and wiring 
28  P/N 3102351-EN • REV 005 • ISS 28DEC18 
Figure 37: SA-ETH wiring 
 
(1)  Ethernet card 
(2)  Network cable 
(3)  To network connection (PC, router, switch, etc.) 
 
Figure 38: SA-ETH LEDs 
 
2)  LED 4 (DS4): Collision  
(5)  LED 1 (DS1): Link 
CTM module wiring 
The City Tie Module (CTM) is an interface between the control panel notification appliance 
circuit and a master box. It provides off-premises signal transmission for systems that must 
comply with NFPA requirements for Auxiliary Protective Systems. The CTM activates a local 
energy fire alarm box. For detailed information and wiring, refer to CTM City Tie Module 
Installation Sheet (P/N 3101025-EN). 
Requirements 
When connecting a CTM to the panel, the following hardware and programming requirements 
must be met: 
•  The CTM must be connected to either a panel NAC, or a NAC module 
•  The NAC used must be dedicated to CTM use only