| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | HY1-24V | RELAY TELECOM SPDT 1A 24VTelecom Relay SPDT (1 Form C) Through Hole | Panasonic Electric Works |
| 3 | DK2A-PSL2 | SOCKET RELAY LATCH FOR DK RELAYSRelay Socket Through Hole | Panasonic Electric Works |
| 4 | G7S-3A3B-E DC24 | RELAY SAFETY 6PST 10A 24VSafety Relay 6PST-NO/NC (3 Form A, 3 Form B) 24VDC Coil Socketable | Omron Automation and Safety |
| 5 | JTN1S-PA-F-DC15V | RELAY GEN PURPOSE SPDT 20A 15VGeneral Purpose Relay SPDT (1 Form C) 15VDC Coil Through Hole | Panasonic Electric Works |
| 6 | RT4S4R24 | RELAY GEN PURPOSE DPDT 8A 24VGeneral Purpose with Socket Relay DPDT (2 Form C) 24VAC Coil DIN Rail | TE Connectivity Potter & Brumfield Relays |
| 7 | 4-1393809-4 | RELAY GEN PURPOSE DPDT 5A 48VGeneral Purpose Relay DPDT (2 Form C) 48VDC Coil Socketable | TE Connectivity Potter & Brumfield Relays |
| 8 | ADY10005 | RELAY GEN PURPOSE SPST 10A 5VGeneral Purpose Relay SPST-NO (1 Form A) 5VDC Coil Through Hole | Panasonic Electric Works |
| 9 | 2IO4A | I/O MOUNTING BOARD STANDARD 4POSI/O Module Rack 4 Channel | TE Connectivity Potter & Brumfield Relays |