1
MAN-01-00028-1.1
Cellular Modem Installation Guide
This installation guide describes how to install and set up a GSM cellular modem for use as a communication gateway for the
SolarEdge device (inverter or Safety and Monitoring Interface [SMI]).
What’s in the Box
GenPro 20e SQB GSM modem
GSM antenna
Universal power supply
15-pin / 9-pin serial cable
15-pin to 3-wire (RXD,TXD and
GND) serial cable
Modem manufacturer instruction
sheet
This installation guide
Physically Connecting the GSM Cellular Modem
1
Connect the antenna to the modem.
2
Remove the SIM card cover, insert
a SIM card into the modem and put
the SIM card cover back.
NOTE:
A SIM card is not supplied with this product. You must
purchase a SIM card and an appropriate GPRS data package from
your GSM service provider separately. Confirm with your GSM
service provider that the SIM card is unlocked for GPRS data
usage.
For an inverter with an external RS232 port, continue
to step
3
. For other devices, continue to step
4
.
3
When using a SolarEdge inverter, connect the modem to
the inverter using the RS232 port. Use the 15-pin / 9-pin
serial cable provided.
Figure 1: Inverter RS232 Connection
Continue to step
8
.
4
When using a SolarEdge SMI or an inverter without an
external RS232 port, be sure to turn the AC power off and
wait five minutes.
5
Open the SolarEdge device cover, as instructed in the
device manual.
6
Open gland #1 located on the bottom of the SolarEdge
device, as shown in Figure 2. Figure 2 shows the SMI as an
example. The procedure is similar for the inverter.
Figure 2: Cable Gland Location on SMI
The smallest hole is for RS232 cable insertion. The
SolarEdge device glands come presealed from the
factory. Remove the sealing to insert the cable.
CAUTION:
If a gland is opened and not used, then make sure to reseal it.
Otherwise, it may degrade the device
’s ingress protection and
void the warranty.
CAUTION:
The internal side of the gland includes an o-ring, which should
be used to ensure proper sealing.
7
Connect the modem to the SolarEdge device through
the RS232 connector, which is the nine-pin terminal
block connector on the right side of the communication
board.
Figure 3: GSM Cellular Modem Wire Connection
The GSM kit comes with its dedicated cable. Locate
the hole specified for RS232 cable and insert the side
without connector of the RS232 cable into the device
through the gland. Connect its wires as follows:
Insert the
Tx
-marked wire into the terminal block
TX
pin.
Insert the
Rx
-marked wire into the terminal block
RX
pin.
Insert the
G
-marked wire into the terminal block
G
pin.
8
Connect the other side of the RS232 cable to the GSM
modem.
9
Connect the power supply to the modem and to an
electrical socket.
RS232 Connector
G
TX
RX
G
TX
RX
Cable Gland
