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V1.03
15.4.29
2
Power Supply
All Monico Gateways™ require a regulated 24 VDC +/- 10% power source with 1000 ma power maximum.
Monico Gateway from Cummins® KITS come with a 110 VAC-24 VDC power supply. If 110 VAC is not
available, you must use a Class 2 or SELV rated 24 VDC power supply. It is recommended that you use
either an isolated DC-DC power supply, or properly grounded engine 24v batteries to power the
Gateway. When power is applied, the green STS light will function. If this light is blinking, then no setup
file is installed or it is currently loading a file. If this light is solid, then a setup file is resident and
operating.
Figure 2
CAUTION
Reversing wire polarity may cause damage to your Gateway. This damage is not covered by warranty. If
in doubt about which wire is which on your power supply, check with a meter.
When using an external power supply, it is very important that the power supply is mounted correctly if
the unit is to operate reliably. Please take care to observe the following points:
The power supply must be mounted close to the unit, with usually not more than 6 feet (1.8 m) of cable
between the supply and the Gateway. Ideally, the shortest length possible should be used. The wire used
to connect the Gateway’s power supply should be at least 22-gage wire. If a longer cable run is used, a
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