Dolphin® 9500 Series User’s Guide Rev A
5/15/07
10 - 1
10
Wireless WAN (WWAN) Communications with GSM/GPRS
The Dolphin 9500 is the only terminal in the Dolphin 9500 Series that can be configured with an integrated Siemens
®
GSM/GPRS
quad-band radio module for WWAN communications.
Overview
Enabling the GSM/GPRS Radio
The radio driver for GSM is installed and enabled by default after each hard reset. Before using the radio, make sure that the
GSM radio is enabled. For details, see Using the Radio Manager on page 7-9.
GSM Radios
Dolphin 7900 terminals can support an MC-45 or MC-75 radio for two-way voice and data communication.
MC-45 Radio Supports 900/1800/1900 MHz frequencies for use in Europe, Middle East, Asia, and Australia.
MC-75 Radio Supports 850/900/1800/1900 MHz frequencies for use in the U.S., Canada, Latin America, Europe,
Middle East, Asia, and Australia.
Dual-Band Antenna
Dolphin terminals configured with a GSM radio feature an external antenna
that is optimized for power output and receiver sensitivity. This is an omni-
directional antenna with zero dBm gain.
For the MC-75 radio, there are two different antennas based on geographical
location; each supports two bandwidths:
Europe Supports 900 MHz and 1800 MHz bands. This
antenna is color-coded with a white O-ring on the
inside of the antenna.
North America Supports 850 MHz and 1900 MHz bands. This
antenna is color-coded with a green O-ring on the
inside of the antenna.
Requirements
Using GMS/GPRS on a Dolphin 9500 terminal requires a:
• Network subscription to a GSM/GPRS network (you need to know what service providers are in your geographic area), and
• SIM card that has been activated by the network service provider installed on the terminal (see SIM Card Installation on page
10-2).
Capabilities
Dolphin terminals with integrated GSM/GPRS radios are optimized for the following two-way voice and data communications:
• GSM voice data ("dial-up")
• SMS (Short Message Service) text messages
• GPRS Class 10 - data transmissions average 40-60 Kbps (available speed depends on the wireless network carrier)
GSM Short for Global System for Mobile communications, GSM is an open, non-proprietary wireless WAN system
that is constantly evolving and growing. One of its great strengths is international roaming capability, which
provides standardized dialing in more than 170 countries.
GPRS Short for General Packet Radio Service, GPRS is a non-voice value added service that allows packet-
switched data to be instantly sent and received across mobile telephone networks.
