| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | HY1Z-12V | RELAY TELECOM SPDT 1A 12VTelecom Relay SPDT (1 Form C) Through Hole | Panasonic Electric Works |
| 3 | P2R-087P | RELAY SOCKET PC MNT FOR G2R-2-SRelay Socket Through Hole | Omron Automation and Safety |
| 4 | SP2-SF | ACCY RELAY SOCKET SP SCREW TERMRelay Socket Chassis Mount | Panasonic Electric Works |
| 5 | T9GV5L24-24 | T9GV5L24-24General Purpose Relay SPDT (1 Form C) 24VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 6 | S2EB-12V | RELAY GEN PURPOSE 4PST 4A 12VGeneral Purpose Relay 4PST-NO/NC (2 Form A, 2 Form B) 12VDC Coil Through Hole | Panasonic Electric Works |
| 7 | C4IAC | INPUT MODULE AC 14MA 4.5-30VDCAC Input Module Output Module 25mA 4.5 ~ 30VDC Output 90 ~ 140VAC (120VAC Nom) Supply | Sensata-Crydom |
| 8 | 70M-IAC5A | INPUT MODULE AC 6MA 5VDCAC Input Module Output Module 10mA 5VDC Output 180 ~ 280VAC (240VAC Nom) Supply | Grayhill Inc. |
| 9 | ODC5ML | OUTPUT MODULE DC STD 18MA 5VDCDC Output Module Output Module 0.01 ~ 1A 1 ~ 50VDC Output 5VDC (2.75 ~ 8VDC) Supply | Sensata-Crydom |