Connecting A Gsm/Gprs/3G Module - Satec EM132 Installation And Operation Manual

‎ C hapter 2
Installation
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Connecting a GSM/GPRS/3G module

54
Figure ‎ 2 -23 COM2 RS-422/485 connection
The RS-232/422-485 module TERMINALS are for use only with
equipment which has no live parts which are ACCESSIBLE
The RATING of the insulation of the external equipment for use
with The RS-232/422-485 module, shall comply according to
Installation Category III for insulation to be suitable for
SINGLE FAULT CONDITION
The external equipment TERMINAL connection type is normally
terminal block for wire size 14 AWG (up to 1.5 mm²) – RS-
422/485 port and DB9 male-to-female cable more than 22
AWG (0.3mm²)
The type of equipment that might be connected to the
TERMINAL is:
Personal Computer – PC or LAPTOP
A GSM/GPRS modem can be connected to the meter COM2 port to
provide communications with the remote MODBUS/TCP server via a
wireless GPRS network.
Figure ‎ 2 -24 COM2 GPRS/3G module Connection
Communications Connections
EM13x Series SMART MULTIFUNCTION METER