| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-SOS1CL | SOS SWITCH W/1M CABLE | Digi International |
| 2 | V23101D 107A201 | RELAY GEN PURPOSE SPDT 1.25A 24VGeneral Purpose Relay SPDT (1 Form C) Through Hole | TE Connectivity Potter & Brumfield Relays |
| 3 | 910521 | RELAY SOCKET RS KU2 120VAC 1CHRelay Socket DIN Rail | Weidmuller |
| 4 | 27E396 | SOCKET RELAY 1-3 POLES QCRelay Socket Panel Mount | TE Connectivity Potter & Brumfield Relays |
| 5 | S4EB-L2-12V | RELAY GEN PURPOSE 4PST 4A 12VGeneral Purpose Relay SPST-NO (1 Form A) x 4 12VDC Coil Through Hole | Panasonic Electric Works |
| 6 | 70RCK4 | I/O MOUNTING BOARD STANDARD 4POSI/O Module Rack 4 Channel | Grayhill Inc. |
| 7 | PB-24C4 | I/O MOUNTING BOARD C4 24POSI/O Module Rack 24 Channel | Sensata-Crydom |
| 8 | 2-1462051-4 | RELAY RF SPDT 2A 5V | TE Connectivity Potter & Brumfield Relays |
| 9 | 2972987 | CONN TERM BLOCKI/O Module Rack Channel | Phoenix Contact |