GSM M4, Das GTM M4 ist ein GSM Modem, womit ihre Applikationen (SMS, DATA und GPRS) über das GSM Netzwerk realisiert werden können.

GSM Modem Dual Band 900/1800
GTM M4/GSM
GSM modem / terminal dual band GSM 900/1800.
Product features
Dual Band GSM modem / terminal
(EGSM900/1800MHz) designed for data,
fax, SMS and voice applications. Fully
compliant with ETSI GSM Phase 2+
specifications (Normal MS). Remote
control by AT commands and AT+
(GSM 07.07 and 07.05) command
set listed in the documentation of
the GSM module GM862-GSM.
Input voltage: 8V-40V
Input current @ 12V
· 8mA in idle mode
· 150mA by output power 2W
Temperature range
· -20°C - +70°C operating
· -30°C - +85°C storage
Overall dimensions and weight
80mm x 62mm x 31mm / 200g
Voice, Data/Fax, Short Message
Services, Voice features
· Telephony
· Emergency calls
· Full Rate, Enhanced Full Rate and Half
Rate
· Dual Tone Multi Frequency Function
(DTMF)
Data/Fax features
· Coding schemes: CS1 to CS4
· Circuit Switched Data (CSD)
asynchronous, transparent and non
transparent up to up to 14.4 kbps
· Automatic fax group 3 (Class 1)
Short Messages Services features
· Text and PDU
· Point to point (MT/MO)
· SMS cell broadcast
GSM supplementary services
· Call Forwarding
· Call Barring
· Call Waiting and Call Hold
· Calling Line Identity
· Explicit Call Transfer
Interfaces
· RS-232 through D-TYPE 9 pin connector
· RJ11 voice connector
· Power supply through Molex 4 pin
connector
· SMA antenna connector
· Toggle spring SIM card reader 3 Volt