Preparation For Remote Control Of Equipment Using Wireless Modem - Comba Telecom SR-1910 Installation Manual

3.6 PREPARATION FOR REMOTE CONTROL OF EQUIPMENT USING
WIRELESS MODEM
Wireless Modem
For the equipment variant equipped with wireless modem, the modem provides the option of remote
connection of the equipment via the OMT. The wireless (GSM) modem implements the link for data and
SMS functions.
Note: When CDMA modem is used, only SMS function is supported to retrieve alarm information and to
provide remote control.
The power and data cables have been factory-connected to the wireless modem. User only needs to insert
the SIM / UIM card to the GSM / CDMA modem.
To insert or replace the SIM /UIM card, locate and press down the recessed button (yellow) to eject the SIM
/ UIM card carrier (refer to the following figure). Insert the SIM / UIM card and push back the carrier until it is
latched in place.
SIM card carrier SIM card carrier
The LED indicator of the wireless modem displays the state of the modem:
LED OFF: equipment power off
LED ON: equipment power on, no SIM / UIM card or no connection to antenna
LED flash slowly: equipment power on, in SMS mode
LED flash quickly: equipment power on, in data link mode
Note: Data link mode is dependent on service availability from service operator. If it is required, the
operator's SIM card must be data-enabled (Circuit Switch Data) and without PIN code.
SR-1910 QI
ENU Status : 1-1-1
INSTALLATION GUIDE FOR SR-1910
Indicator LED Indicator LED
SIM card SIM card
Figure 12: Wireless modem
Copyright - refer to title page
RS232 port RS232 port
Modem RF output Modem RF output
(SMA connector) (SMA connector)
Yellow button Yellow button
Power port Power port
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