Bolymin BETA903A, User Manual, Page: 16 / 95

BETA903A USER MANUAL - 16 -
1.2.5. GSM Module specifications
Parameter Specifications
Frequency band
y
MC55 Tri-band: EGSM 900, GSM 1800, GSM 1900
y Compliant to GSM Phase 2/2+
GSM class Small MS
Transmit power
y Class 4 (2W) at EGSM 900 and GSM 850
y
Class 1 (1W) at GSM 1800 and GSM 1900
GPRS connectivity
y GPRS multi-slot class 10
y GPRS mobile station class B
Ambient operating
temperature according to
IEC 60068-2
y
Normal operation: -20
ɗ
to +55
ɗ
y
Restricted operation: -25
ɗ
to -20
ɗ
and +55
ɗ
to +70
ɗ
y Automatic thermal shutdown: ʀ -25 ɗ and ʁ +70 ɗ
When an emergency call is in progress automatic temperature shutdown
is deferred
Humidity Max. 90% relative humidity
GPRS data
y GPRS data downlink transfer: max. 85.6 kbps
y
GPRS data uplink transfer: max. 42.8 kbps
y
Coding scheme: CS1, CS2, CS3 and CS4
y
MC55/MC56 Support the two protocols PAP (Password Authentication
Protocol) and CHAP (Challenge Handshake Authentication Protocol)
commonly used for PPP connections.
y
Support of Packet Switched Broadcast Control Channel (PBCCH)
allows you to benefit from enhanced GPRS performance when offered
by the network operators.
CSD data
y
CSD transmission rates: 2.4, 4.8, 9.6, 14.4 kbps, non-transparent,
V.110
y
Unstructured Supplementary Services Data (USSD) support
SMS
y MT, MO, CB, Text and PDU mode
y SMS storage: SIM card plus 25 SMS locations in the mobile equipment
y
Transmission of SMS alternatively over CSD or GPRS. Preferred mode
can be user-defined
TCP/IP stack
Internet services: TCP, UDP, HTTP, FTP, SMTP, POP3
Access by AT commands
FAX Group 3: Class 1, Class 2
SIM interface
y
Supported SIM card: 3V
y External SIM card reader has to be connected via interface connector
External antenna Connected via 50 Ohm antenna connector or antenna pad
Audio interfaces Two analog audio interfaces, one digital audio interface(DAI)
Audio features
Speech codec modes:
y
Half Rate (ETS 06.20)
y Full Rate(ETS 06.10)
y
Enhanced Full Rate(ETS 06.50/06.60/06.80)
y
Adaptive Multi Rate(AMR)
Hands free operation
y Echo cancellation
y
Noise reduction