西门子 tc35i 模块

general features:
• dual-band egsm900 and
gsm1800
• compliant to gsm phase 2/2+
• output power:
– class 4 (2 w) for egsm900
– class 1 (1 w) for gsm1800
• control via at commands
• sim application toolkit
• multiplex rs232 interface
• supply voltage range 3.3 ... 4.8 v
• power save mode
• power consumption:
– idle mode (registered) 25 ma
– speech mode 300 ma
– peak <2.5 a
– power down 50 µa
– sleep mode 3.5 ma
• dimensions: 54.5 x 36 x 3.6 mm
• weight: 9 g
• ambient temperature:
–20 °c ... +55 °c
specifications for data transfer:
• csd up to 14.4 kbps
• ussd
• non transparent mode
• v.110
• 7e1-character framing
specifications for sms:
• point-to-point mo and mt
• sms cell broadcast
• text and pdu mode
specifications for fax:
• group 3, class 1, 2
specifications for audio:
• half rate (hr)
• full rate (fr)
• enhanced full rate (efr)
• basic handsfree operation
– echo cancellation
– noise reduction
additional features:
• phone book
• multiparty call
• call diverting
• real time clock
• alarm management
• several ringing tones
• dtmf
(dual tone multi frequency)