| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 2966281 | RELAY GEN PURPOSE SPDT 50MA 120VGeneral Purpose with Socket Relay SPDT (1 Form C) DIN Rail | Phoenix Contact |
| 3 | AGQ200A24 | RELAY TELECOM DPDT 2A 24VTelecom Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 4 | AGN2604H | RELAY TELECOM DPDT 1A 4.5VTelecom Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 5 | V23079F1101B301 | RELAY GENERAL PURPOSE DPDT 2A 5VGeneral Purpose Relay DPDT (2 Form C) Surface Mount | TE Connectivity Potter & Brumfield Relays |
| 6 | G6K2PYDC45 | RELAY TELECOM DPDT 1A 4.5VTelecom Relay DPDT (2 Form C) Through Hole | Omron Electronics Inc-EMC Div |
| 7 | 25622301 | CONTROL TIMER ACCESS SOCKET 8PRelay Socket Free Hanging | Crouzet |
| 8 | 2300200 | SOCKET 12-PINRelay Socket Chassis Mount | Red Lion Controls |
| 9 | 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 |