| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | SA8NN | CONTROL SOCKET 8 POS BACK MOUNTRelay Socket Chassis Mount | Crouzet |
| 3 | 1393824-1 | RELAY SOCKET PCB SIZE IRelay Socket Through Hole | TE Connectivity Potter & Brumfield Relays |
| 4 | R10-E1X2-V2.5K | RELAY GEN PURPOSE DPDT 5A 48VGeneral Purpose Relay DPDT (2 Form C) 48VDC Coil Socketable | TE Connectivity Potter & Brumfield Relays |
| 5 | G6B-1114P-FD-US-DC5 | RELAY GENERAL PURPOSE SPST 5A 5VGeneral Purpose Relay SPST-NO (1 Form A) 5VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 6 | RT425024 | RELAY GEN PURPOSE DPDT 8A 24VGeneral Purpose Relay DPDT (2 Form C) 24VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 7 | 70RCK16-HL | I/O MOUNTING BRD STANDARD 16POSI/O Module Rack 16 Channel | Grayhill Inc. |
| 8 | 70MRCK24-HS | I/O MOUNTING BOARD MINI 24POSI/O Module Rack 24 Channel | Grayhill Inc. |
| 9 | 9814-05-20 | RELAY RF SPST 250MA 5V | Coto Technology |