| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | JH2-SF | ACCY RELAY SOCKET FOR HE2ARelay Socket DIN Rail | Panasonic Electric Works |
| 3 | HC2-HP-DC12V-F | RELAY GEN PURPOSE DPDT 7A 12VGeneral Purpose Relay DPDT (2 Form C) 12VDC Coil Through Hole | Panasonic Electric Works |
| 4 | 9-1393243-3 | RELAY GEN PURPOSE DPDT 8A 230VGeneral Purpose Relay DPDT (2 Form C) 230VAC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 5 | 70RCK24 | I/O MOUNTING BRD STANDARD 24POSI/O Module Rack 24 Channel | Grayhill Inc. |
| 6 | 2904-05-421 | RELAY RF SPST 500MA 5V | Coto Technology |
| 7 | JSM1-12V-4 | RELAY AUTOMOTIVE SPDT 10A 12V | Panasonic Electric Works |
| 8 | ARS14Y4HZ | RELAY RF SPDT 500MA 4.5V | Panasonic Electric Works |
| 9 | 1462051-3 | RELAY RF SPDT 2A 9V | TE Connectivity Potter & Brumfield Relays |