| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | TXS2-4.5V | RELAY GEN PURPOSE DPDT 1A 4.5VGeneral Purpose Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 3 | 27E446 | SOCKET FLANGE MNT DP R10 SERIESRelay Socket Chassis Mount | TE Connectivity Potter & Brumfield Relays |
| 4 | KRP-3AH-120 | RELAY GEN PURPOSE SPST 20A 120VGeneral Purpose Relay SPST-NO (DM) (1 Form X) 120VAC Coil Socketable | TE Connectivity Potter & Brumfield Relays |
| 5 | MKS1XTN-10 DC12 | RELAY GEN PURPOSE SPST 10A 12VGeneral Purpose Relay SPST-NO (1 Form A) 12VDC Coil Socketable | Omron Automation and Safety |
| 6 | JQ1P-18V-F | RELAY GEN PURPOSE SPDT 10A 18VGeneral Purpose Relay SPDT (1 Form C) 18VDC Coil Through Hole | Panasonic Electric Works |
| 7 | 70MRCQ24-EC | I/O MOUNTING BOARD MINI 24POSI/O Module Rack 24 Channel | Grayhill Inc. |
| 8 | 2962463 | ACTIVE MODULEI/O Module Rack Channel | Phoenix Contact |
| 9 | 20C254 | SPRING HOLD-DOWN KU RELAYS SNAPClip, Hold Down KU Series | TE Connectivity Potter & Brumfield Relays |