| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | TQ2SA-L2-24V-Z | RELAY TELECOM DPDT 2A 24VTelecom Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 3 | DS2Y-S-DC3V | RELAY GENERAL PURPOSE DPDT 2A 3VGeneral Purpose Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 4 | RSL116130 | MCDONNEL DOUGLASRelay | Amphenol Pcd |
| 5 | 913561 | RELAY SOCKET 120VAC 11POS OCTLRelay Socket DIN Rail | Weidmuller |
| 6 | DK2A-PSL2 | SOCKET RELAY LATCH FOR DK RELAYSRelay Socket Through Hole | Panasonic Electric Works |
| 7 | SP4-DC24V | RELAY GEN PURPOSE 4PDT 10A 24VGeneral Purpose Relay 4PDT (4 Form C) 24VDC Coil Socketable | Panasonic Electric Works |
| 8 | G5RL-U1-E-DC24 | RELAY PWR LATCH SPDT 16A 24VDCGeneral Purpose Relay SPDT (1 Form C) 24VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 9 | PB-24C4 | I/O MOUNTING BOARD C4 24POSI/O Module Rack 24 Channel | Sensata-Crydom |