Caterpillar EMCP 3.X
This topic is the install guide for the after-market gateway (part# G0097460) with the universal harness (part# A0006648426) when utilizing a CAT® 3.X control panel.

EMCP 3.3 Control Panel
Modbus Communication Settings and Notes
Settings should match values provided in this table.
Address: 1 |
Baud Rate: 9600 |
Parity: None |
If different settings are required, please contact Support.
Equipment Connection Details
Generac Gateway Side Terminations | Description | Harness Wire Color | Equipment Side Terminations |
---|---|---|---|
+ | DC+ | Red | B+ |
- | DC- | Black | B- |
A2 | Data + | Blue / White | Modbus + |
B2 | Data - | White / Blue | Modbus - |
GND | Data GND | White / Green | Modbus REF |
Harness Relay #1 | COM | Blue | Digital Input #2 |
N/O | White / Blue | B- |
Gateway Connection Ports

Gateway Right Panel—GPS antenna and harness I/O connections

Gateway Left Panel—Cellular antenna, power, serial communication ports, and SIM card slot
Check out our knowledge base and support center for information on any technical questions.