| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 2950417 | RELAY GEN PURPOSERelay | Phoenix Contact |
| 3 | T9GS2L24-22 | T9GS2L24-22General Purpose Relay SPST-NC (1 Form B) 22VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 4 | SR4M4085 | RELAY SAFETY 4PST 8A 85VSafety Relay 4PST-NO/NC (3 From A, 1 Form B) 85VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 5 | HE1AN-DC6V | RELAY GEN PURPOSE SPST 30A 6VGeneral Purpose Relay SPST-NO (1 Form A) 6VDC Coil Chassis Mount | Panasonic Electric Works |
| 6 | 70RCK8-HS | I/O MOUNTING BOARD STANDARD 8POSI/O Module Rack 8 Channel | Grayhill Inc. |
| 7 | ARA200A05 | RELAY RF DPDT 1A 5V | Panasonic Electric Works |
| 8 | G8ND-2-DC12 | RELAY AUTOMOTIVE SPDT 30A 12V | Omron Electronics Inc-EMC Div |
| 9 | CB1A-24V | RELAY AUTOMOTIVE SPST 20A 24V | Panasonic Electric Works |