| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | G6AK-234P-ST-US-DC5 | RELAY GENERAL PURPOSE DPDT 1A 5VGeneral Purpose Relay DPDT (2 Form C) Through Hole | Omron Electronics Inc-EMC Div |
| 3 | RSL116144 | MCDONNEL DOUGLASRelay | Amphenol Pcd |
| 4 | JRE400210 | QUICK MOUNT, 4 POLERelay | Amphenol Pcd |
| 5 | 8826010000 | MXS 24VDC 1CO BASIS-BASE ONLYRelay Socket DIN Rail | Weidmuller |
| 6 | G9EA-1 DC24 | RELAY GEN PURPOSE SPST 60A 24VGeneral Purpose Relay SPST-NO (1 Form A) 24VDC Coil Chassis Mount | Omron Electronics Inc-EMC Div |
| 7 | RTX3-1AT-B006 | RELAY GEN PURPOSE SPST 16A 6VGeneral Purpose Relay SPST-NO (1 Form A) 6VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 8 | RY213012 | RELAY GEN PURPOSE SPDT 8A 12VGeneral Purpose Relay SPDT (1 Form C) 12VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 9 | 70G-IAC24 | INPUT MODULE AC 8MA 24VDCAC Input Module Output Module 10mA 24VDC Output 90 ~ 140VAC (120VAC Nom) Supply | Grayhill Inc. |