User Manual

GSM module features
Feature
Power saving
Charging
Frequency bands
GSM Class
Transmit power
GPRS Connectivity
Temperature range
Temperature control
and auto switch-off
DATA GPRS:
CSD:
WAP:
SMS
MMS
Implementation
Minimizes power consumption in SLEEP mode to 3mA
Supports charging control for Li-lon battery
•MC55 Tri-band: EGSM 900, GSM 1800, GSM 1900
•Compliant to GSM Phase 2/2+
Small MS
•Class 4 (2W) at EGSM900 and GSM850
•Class 1 (1W) at GSM1800 and GSM1900
•GPRS multi-slot class 10
•GPRS mobile station class B
•Normal operation: -20° C to +55° C
•Restricted operation:-25° C to -20° C & +55° C to +70° C
•Constant temperature control prevents damage to
MC55/56 when the specified temperature is exceeded.
When an emergency call is in progress the automatic
temperature shutdown functionality is deactivated.
•GPRS data downlink transfer: max. 85.6 kbps
•GPRS data uplink transfer: max. 42.8 kbps
•Coding scheme: CS-1, CS-2, CS-3 and CS-4
•Supports the two protocols PAP (Password
Authentication Protocol) and CHAP (Challenge
Handshake Authentication Protocol) commonly
used for PPP connections.
•Support of Packet Switched Broadcast Control Channel
(PBCCH) allows you to benefit from enhanced GPRS
performance when offered by the network operators.
•CSD transmission rates: 2.4, 4.8, 9.6, 14.4 kbps,
non-transparent, V.110
•Unstructured Supplementary services Data (USSD)
support
•WAP compliant
•MT, MO, CB, Text and PDU mode
•SMS storage: SIM card plus 25 SMS locations in the
mobile equipment
•Transmission of SMS alternatively over CSD or GPRS.
Preferred mode can be user-defined.
MMS compliant
26
26