| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-RTU | REMOTE TERMINAL UNIT RTU | Digi International |
| 2 | G6L-1F DC3 | RELAY TELECOM SPST 1A 3VTelecom Relay SPST-NO (1 Form A) Surface Mount | Omron Electronics Inc-EMC Div |
| 3 | HP4-SF | SOCKET TERM W/CLIP SCREW FOR HP4Relay Socket Chassis Mount | Panasonic Electric Works |
| 4 | T77V1D3-12 | RELAY GEN PURPOSE SPST 3A 12VGeneral Purpose Relay SPST-NO (1 Form A) 12VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 5 | KUHP-11DT1-24 | RELAY GEN PURPOSE DPDT 20A 24VGeneral Purpose Relay DPDT (2 Form C) 24VDC Coil Chassis Mount | TE Connectivity Potter & Brumfield Relays |
| 6 | KUP-11D55-24 | RELAY GEN PURPOSE DPDT 10A 24VGeneral Purpose Relay DPDT (2 Form C) 24VDC Coil Chassis Mount | TE Connectivity Potter & Brumfield Relays |
| 7 | TX2-LT-3V-TH | RELAY GENERAL PURPOSE DPDT 2A 3VGeneral Purpose Relay DPDT (2 Form C) 3VDC Coil Through Hole | Panasonic Electric Works |
| 8 | 2022104-1 | ACCY RETAIN CLIP DIN SCKTClip, Hold Down RT78726 Socket, SCHRACK | TE Connectivity Potter & Brumfield Relays |
| 9 | 70M-IAC15 | INPUT MODULE AC 8MA 15VDCAC Input Module Output Module 10mA 15VDC Output 90 ~ 140VAC (120VAC Nom) Supply | Grayhill Inc. |