User`s manual

Table Of Contents
OnCell G3111/G3151/G3211/G3251 Series User’s Manual Getting Started
2-3
Rear View
Bottom Views
Connecting the Hardware
This section describes how to connect the OnCell G3111/G3151/G3211/G3251 cellular IP Gateway
to a host PC or serial device for first time testing purposes. We cover topics such as: Wiring
Requirements, SIM Installation, Wall and DIN-Rail Mounting, Connecting the Power, Connecting
to a Serial Device, Adjustable Pull High/Low Resistors for the RS-485 Port, and LED Indicators.
Wiring Requirements
ATTENTION
Safety First!
Be sure to disconnect the power cord before installing and/or wiring your device. The OnCell
G3111/G3151/G3211/G3251 should be secured at one location.
Wiring Caution!
Calculate the maximum possible current in each power wire and common wire. Observe all
electrical codes dictating the maximum current allowable for each wire size. If the current goes
above the maximum ratings, the wiring could overheat, causing serious damage to your
equipment.
Temperature Caution!
Be careful when handling the device. When plugged in, the device’s internal components generate
heat, and consequently the casing may feel hot to the touch.