| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | 20-101-1253 | BOARD SERIAL COMM RCM56/57XX | Digi International |
| 2 | AGN2604H | RELAY TELECOM DPDT 1A 4.5VTelecom Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 3 | 2912426 | PLC-BSP- 12DC/21-21Relay | Phoenix Contact |
| 4 | 2900443 | TERM BLOCK INTERFACERelay Socket DIN Rail | Phoenix Contact |
| 5 | SH4B-05 | SOCKET DIN MOUNT SCREW TYPERelay Socket DIN Rail | IDEC |
| 6 | P2R-05A | SOCKET BACK MOUNT G2R-1-S SLDRelay Socket Panel Mount | Omron Automation and Safety |
| 7 | 2912578 | RELAY GEN PURPOSE DPDT 6A 24VGeneral Purpose with Socket Relay DPDT (2 Form C) 24VDC Coil DIN Rail | Phoenix Contact |
| 8 | NC4D-DC24V | RELAY GEN PURPOSE 4PDT 5A 24VGeneral Purpose Relay 4PDT (4 Form C) 24VDC Coil Socketable | Panasonic Electric Works |
| 9 | G2R-2A-DC12 | RELAY GEN PURPOSE DPST 5A 12VGeneral Purpose Relay DPST-NO (2 Form A) 12VDC Coil Through Hole | Omron Electronics Inc-EMC Div |