Chapter 1 – SocketModem GSM
Multi-Tech Systems, Inc. SocketModem GSM Hardware Guide for Developers
5
Technical Specifications
The SocketModem GSM meets the following specifications:
Category
Description
Standards
GPRS Class 10
Bandwidth
Quad-band 850/1900 or 900/1800 MHz GSM/GPRS
Serial/Data Speed
Serial interface supports DTE speeds to 921600 baud
Packet data up to 85.6K bps
Circuit-switched data (GPRS) up to 14.4K bps transparent and non-transparent
Data Format
Asynchronous, transparent and non-transparent
Data Error Correction
MNP2
Data Compression
V.42bis
Fax Compatibility
GSM
Fax Class
Class 1 and Class 2 Group 3
Dimensions
2.541” L × 1.045” W × 0.542” H (6.45cm x 2.65cm x 1.38cm) with SIM retracted
2.974” L × 1.045” W × 0.542” H (7.55cm x 2.65cm x 1.38cm) with SIM ejected
Weight
To be determined
Operating
Temperature
-30° to +70° C (FCC certified operating temperature range is -30° to +50° C )
Storage Temperature
-40° to +85° C
Humidity
20% to 90% (non-condensing)
Operating Voltage
5VDC
Power Requirements 5V:
Typical: To be determined (minimum 400mA)
Maximum Peak Current 2.0A
(Note: The VCC supply does not have to provide a constant high current
but must accommodate the short current spikes of about 1154µs every
4.651ms.)
Connectors
Antenna: UFL button-type with maximum cable length of
TBD” (TBD cm)
SIM: Standard 1.8V and 3V SIM receptacle
VCC/GND: Extra connector for retrofit situations in case VCC pin is not provided
with enough current (must be same 5V source as VCC pin) and cable length must
not cause more than
TBD
volts drop.
IP Protocols
Supported
FTP client, ICMP, POP3 (receive mail), HTTP, SMTP (send mail), TCP/UDP
socket:
To be determined at a later date.
Approvals
Safety Certifications
UL 60950
cUL 60950
EN 60950
AS/NZS 60950:2000
EMC Approvals
FCC Part 22, 24
ETSI EN 301 489-7
Network
PTCRB
Warranty
Two years
