| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | JRS500110 | QUICK MOUNT, 5 POLERelay | Amphenol Pcd |
| 3 | V23092-A1060-A301 | RELAY GEN PURPOSE SPDT 6A 60VGeneral Purpose Relay SPDT (1 Form C) 60VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 4 | KUP-11A55-24 | RELAY GEN PURPOSE DPDT 10A 24VGeneral Purpose Relay DPDT (2 Form C) 24VAC Coil Chassis Mount | TE Connectivity Potter & Brumfield Relays |
| 5 | T9VV1K15-12S | 2027395-5General Purpose Relay SPST-NO (1 Form A) 12VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 6 | G4A-1A-E DC5 | RELAY GEN PURPOSE SPST 20A 5VGeneral Purpose Relay SPST-NO (1 Form A) 5VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 7 | MS-16H | I/O MOUNTING BOARD MINI 16POSI/O Module Rack 16 Channel | Sensata-Crydom |
| 8 | 9814-05-20TR | RELAY RF SPST 250MA 5V | Coto Technology |
| 9 | 70L-IAC | INPUT MODULE AC 8MA 5VDCAC Input Module Output Module 6mA 5VDC Output 0 ~ 140VAC (120VAC Nom) Supply | Grayhill Inc. |