An EOL terminator is required in all Metasys MS/TP applications wherever a terminating device on a Remote Field Bus segment does not have integral EOL termination (for example, TEC26xx Series thermostats and some BACnet IP Routers).
For Metasys devices without a built-in EOL switch, use the MS-BACEOL-0 RS485 EOL Terminator. The EOL terminator is a compact, lightweight module wrapped in a protective cover that can be quickly installed in a variety of ways. The EOL connects directly to the terminating device on a bus segment with the attached wire leads. The EOL requires 24 VAC, Class 2 power supplied by the field device or other 24 VAC source.
For the Loytec Router, use the L-Term LT-04 Bus Terminator. The terminator requires no external power supply. Refer to the Loytec website (http://www.loytec.com) for additional details.