User Guide

Accessories 11
Accessories
A range of type approved and recommended
accessories for the GM29 are available through
Sony Ericsson's distribution channels.
AT Commands
The GM29 is controlled and programmed by
means of AT commands. For a complete list
and detailed description of each command
please refer to the Integrator’s Manual on the
CD accompanying this product.
Type Approval
The integrated nature of the GM29 should make
type approval a minimal process. The type
approval process may differ from country to
country but in general no further type approval
oftheGM29isneededwhenusedwith
Sony Ericsson approved accessories and where
the cable lengths are restricted to those shown
in the table below.
Further type approval will be required if: ??
Software Updates
Itispossible and sometimes necessaryto update
the embedded software. Updates must be
carried out by a Sony Ericsson approved
technician.
Please contact your supplier for details or
contact Sony Ericsson directly (see “Service
and Support” on page 11).
Certification
Tested and certified according to:
Directive 1999/5/EC
EMC: EN 301 489-1
EMC: EN 301 489-7
Safety: EN 60950
GSM 3GPP TS 51.010-1
Troubleshooting
Do not attempt to repair a damaged modem.
Return it to your supplier for replacement or
repair.
Modem Not Working
One of the following situations probably
applies:
1. Power is not connected. Check the power
source and connection to the RJ11 connec-
tor on the GM29.
2. Power is connected but a switch on signal
has not been applied, see “Switching On
the Modem” on page 10.
3. The modem is damaged.
Software Crashed
Perform a hard reset (see “Resetting the
Modem” on page 10).
If this fails, the modem is probably damaged.
No Communication,
Modem Switched On
Check the RS232 serial port connections and
cable.
Check the application software.
Service and Support
To contact customer support please use the
details below:
Customer Support
Sony Ericsson Mobile Communications
Maplewood Building
Cable Maximum length (m)
Power cable 3
Handset cable 3
Antenna cable 3
RS232 cable 3