| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | TQ2SS-24V-Z | RELAY TELECOM DPDT 2A 24VTelecom Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 3 | JRS300101 | QUICK MOUNT, 3 POLE WCRelay | Amphenol Pcd |
| 4 | 27E127 | SOCKET 6P SOLDER R10 SERIESRelay Socket Panel Mount | TE Connectivity Potter & Brumfield Relays |
| 5 | 27E220 | SOCKET DP-2P FOR PT SERIESRelay Socket Through Hole | TE Connectivity Potter & Brumfield Relays |
| 6 | ALE1PB24 | RELAY GEN PURPOSE SPST 16A 24VGeneral Purpose Relay SPST-NO (1 Form A) 24VDC Coil Through Hole | Panasonic Electric Works |
| 7 | SR6D4024 | RELAY SAFETY 4PST 8A 24VSafety Relay 4PST-NO/NC (2 Form A, 2 Form B) 24VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 8 | OMI-SS-124L,300 | RELAY GEN PURPOSE SPDT 10A 24VGeneral Purpose Relay SPDT (1 Form C) 24VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 9 | ARJ20A12 | RELAY RF DPDT 300MA 12V | Panasonic Electric Works |