| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 910514 | RSM 8 24VAC SPDT 10A SOCKETRelay | Weidmuller |
| 3 | ALE1PB09 | RELAY GEN PURPOSE SPST 16A 9VGeneral Purpose Relay SPST-NO (1 Form A) 9VDC Coil Through Hole | Panasonic Electric Works |
| 4 | T92S7D14-24 | RELAY GEN PURPOSE DPST 30A 24VGeneral Purpose Relay DPST-NO (2 Form A) 24VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 5 | G2R-1-SN DC12(S) | RELAY GEN PURPOSE SPDT 10A 12VGeneral Purpose Relay SPDT (1 Form C) 12VDC Coil Socketable | Omron Automation and Safety |
| 6 | 70LRCK8-HL | I/O MOUNTING BOARD OPENLINE 8POSI/O Module Rack 8 Channel | Grayhill Inc. |
| 7 | G6K-2F-RF-S DC12 | RELAY RF DPDT 1A 12V | Omron Electronics Inc-EMC Div |
| 8 | G6K-2P-RF DC3 | RELAY RF DPDT 1A 3V | Omron Electronics Inc-EMC Div |
| 9 | 1393827-1 | SPRING HOLD DOWN CRADLE NSP IClip, Hold Down Cradle Sockets, AXICOM | TE Connectivity Potter & Brumfield Relays |