MC55i Terminal Hardware Interface Description
2.1 Key Features at a Glance
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MC55i_Terminal_HD_v01.201a
Page 17 of 47
2010-04-16
Confidential / Released
Audio
Speech codecs:
•
Half rate HR (ETS 06.20)
•
Full rate FR (ETS 06.10)
•
Enhanced full rate EFR (ETS 06.50/06.60/06.80)
•
Adaptive Multi Rate AMR
Echo cancellation, DTMF, 7 ringing tones
Software
AT commands
Hayes 3GPP TS 27.007, TS 27.005, Cinterion
Firmware update
Upgradeable via serial interface.
Interfaces
Serial interface
•
RS-232 interface, bi-directional bus for AT commands and data.
•
Multiplex ability according to GSM 07.10 Multiplexer protocol
•
Baud rates from 300bps to 115200bps
•
Autobauding supports: 1200, 2400, 4800, 9600, 19200, 38.400, 57600
and 115200bps
•
Supports RTS/CTS hardware handshake and software XON/XOFF
flow control
Audio
Analog (Microphone, Earpiece)
SIM card reader
Supported SIM cards: 3V, 1.8V
Antenna
Connected via antenna FME connector
Power on/off, Reset
Power on
DTR line at RS232 interface or IGT_IN line at power connector
Power off
•
Normal switch-off by AT^SMSO or On/Off push button
•
Emergency switch-off via EMERGOFF line at power connector
•
Automatic switch-off in case of critical temperature and voltage condi-
tions
Reset
Orderly shutdown and reset by AT command or power down signal.
Special features
Real time clock
Timer functions via AT commands
Phonebook
SIM card and phone
Feature
Implementation
