| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 2701205 | CONTROL BOX MOUNTING SET | Phoenix Contact |
| 3 | TXS2-LT-3V | TXS RELAY 2 FORM C 3VGeneral Purpose Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 4 | 6-1415035-1 | SOCKET 5MM W/SCREW TERM DINRelay Socket DIN Rail | TE Connectivity Potter & Brumfield Relays |
| 5 | HC4-HL-DC24V | RELAY GEN PURPOSE 4PDT 5A 24VGeneral Purpose Relay 4PDT (4 Form C) 24VDC Coil Socketable | Panasonic Electric Works |
| 6 | G5RL-1A-LN DC24 | RELAY GEN PURPOSE SPST 12A 24VGeneral Purpose Relay SPST-NO (1 Form A) 24VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 7 | HE1AN-DC6V | RELAY GEN PURPOSE SPST 30A 6VGeneral Purpose Relay SPST-NO (1 Form A) 6VDC Coil Chassis Mount | Panasonic Electric Works |
| 8 | 70RCK24 | I/O MOUNTING BRD STANDARD 24POSI/O Module Rack 24 Channel | Grayhill Inc. |
| 9 | 1-1414476-0 | HCR 150 | TE Connectivity AMP Connectors |