| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | OUAZ-SH-105L,405 | RELAY TELECOM SPDT 1A 5VTelecom Relay SPDT (1 Form C) Through Hole | TE Connectivity Potter & Brumfield Relays |
| 3 | TXS2SA-L2-4.5V | RELAY GEN PURPOSE DPDT 1A 4.5VGeneral Purpose Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 4 | TQ2-3V | RELAY TELECOM DPDT 1A 3VTelecom Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 5 | 2966265 | RELAY GEN PURPOSE SPDT 50MA 24VGeneral Purpose with Socket Relay SPDT (1 Form C) DIN Rail | Phoenix Contact |
| 6 | 2900958 | RIF-0-BPT/21Relay | Phoenix Contact |
| 7 | 27E461 | SOCKET SCREW TERM 4P R10 RELAYSRelay Socket Chassis Mount | TE Connectivity Potter & Brumfield Relays |
| 8 | 2980241 | 6.2MM PLC ACTUATOR TERM BLOCK 5VRelay Socket DIN Rail | Phoenix Contact |
| 9 | PCFN-124H2MS,02000 | RELAY GEN PURPOSE SPST 26A 24VGeneral Purpose Relay SPST-NO (1 Form A) 24VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |