VoiBRIDGE / VoxiPlus INSTALLATION MANNUAL
© 2008 TOPEX S.A.
page
15
2.4.2 GSM / CDMA / UMTS Card
The GSM card that is used by TOPEX VoiBridge, is the interface for VoIP calls over mobile
networks and accomplishes the mobile functions of the equipment. The PCB of the GSM card
features internal connectors for mounting up to four Quad Band modules for GSM, GPRS/EDGE,
UMTS, HSDPA/HUSPA or CDMA /EVDO mobile networks.
Note:
The mobile modules installed on the equipment correspond to the client’s request and should
be chosen according to the specifications of the mobile networks in the area of operation. You may
ask for modules for different technologies and operating frequency bands (GSM 900, DCS1800, PCS
1900, CDMA800, CDMA2000, 3GPP, etc)
The card features four slots (holders) for SIM cards which correspond to the Mobile Modules
from the Board. Thus the SIM cards are numbered and every SIM card matches to the appropriate
module.
Table 1
– Correspondence between SIM Slots and GSM Modules
SIM Slot
GSM Module
SIM1 Module
1
SIM2 Module
2
SIM3 Module
3
SIM4 Module
4
For receiving the signal of mobile network the GSM card is equipped with either:
A single RF circular connector for an external GSM antenna – it uses an internal 4 to 1
antenna combiner/splitter for all GSM modules.
The advanced version features four RF connectors, one for each GSM modules. This allows
you to set external
directional
antennas, each targeted towards the base station of a specific
mobile carrier.
The mobile card feature also four status indicators, one per each GSM module. The indicators
are green LEDs, located above the SIM cards slots. The LED’s significance is detailed in chapter 2.5
– Status Monitoring.
2.4.3 Other Interface Cards
The “VoxiPlus” gateways come equipped either with 2E1 cards instead of the GSM card, or with
cards that feature, besides the four GSM modules, also 4 interfaces type ISDN BRI.
VoIPon www.voipon.co.uk [email protected] Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299
