| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-RTU | REMOTE TERMINAL UNIT RTU | Digi International |
| 2 | HFW1201G01 | RELAY GEN PURPOSE DPDT 2A 12VGeneral Purpose Relay DPDT (2 Form C) Through Hole | TE Connectivity Aerospace, Defense and Marine |
| 3 | TXS2SA-L-3V | RELAY GENERAL PURPOSE DPDT 1A 3VGeneral Purpose Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 4 | TXD2SA-5V-Z | RELAY GEN PURPOSE DPDT 2A 5VGeneral Purpose Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 5 | DS2E-SL2-DC5V | RELAY GENERAL PURPOSE DPDT 2A 5VGeneral Purpose Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 6 | D3223 | RELAY TELECOM DPDT 2A 5VTelecom Relay DPDT (2 Form C) Through Hole | TE Connectivity Potter & Brumfield Relays |
| 7 | HC4-WS-K | SOCKET WRAP-WIRE/CLIP HC4 RELAYRelay Socket Panel Mount | Panasonic Electric Works |
| 8 | 2900300 | RELAY GEN PURPOSE SPDT 6A 24VGeneral Purpose with Socket Relay SPDT (1 Form C) 24VAC/DC Coil DIN Rail | Phoenix Contact |
| 9 | HEV2AN-P-DC12V | RELAY GEN PURPOSE DPST 20A 12VDCGeneral Purpose Relay DPST-NO (2 Form A) 12VDC Coil Through Hole | Panasonic Electric Works |