| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 214BS | 214BS=ASSEMBLYRelay | TE Connectivity AMP Connectors |
| 3 | SP4-SF | SOCKET RELAY SCREW FOR SP4 RELAYRelay Socket Chassis Mount | Panasonic Electric Works |
| 4 | 70RCK24-HS | I/O MOUNTING BRD STANDARD 24POSI/O Module Rack 24 Channel | Grayhill Inc. |
| 5 | ARE10A4HZ | RELAY RF SPDT 500MA 4.5V | Panasonic Electric Works |
| 6 | G6K-2F-RF-T-TR03 DC12 | RELAY RF DPDT 1A 12V | Omron Electronics Inc-EMC Div |
| 7 | 9002-12-11 | RELAY RF SPST 500MA 12V | Coto Technology |
| 8 | CB1F-R-WM-24V | RELAY AUTOMOTIVE SPDT 20A 24V | Panasonic Electric Works |
| 9 | CB1AHF-D-M-24V | CB RELAY 1 FORM A 24V | Panasonic Electric Works |