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Appendix A - Technical Specifications
Intelligent Features Fully
“AT command” compatible,
microprocessor controlled remote
configuration, EIA extended Automode,
adaptive line probing, automatic symbol
rate and carrier frequency during start-
up, retrain and rate renegotiation,
autodial, redial, repeat dial, dial linking,
pulse or tone dial, dial pauses, call
status display, auto-parity and data rate
selection, keyboard-controlled modem
options, non-volatile memory and on-
screen displays for modem option
parameters and up to ten telephone
numbers/command lines of up to 60
digits each, help menus
Command Buffer 60 characters
Modulation Trellis Coded Modulation (
TCM) at
33,600, 31,200, 28,800, 26,400,
24,000, 21,600, 19,200, 16,800,
14,400, 12,000 and 9600 bps,
Quadrature Amplitude Modulation
(QAM) at 9600 (non-trellis), 4800 and
2400 bps, PSK at 1200 bps, FSK at
300 bps
Fax Modulations V.21CH2 FSK at 300 bps
V.27
ter DPSK at 4800 and 2400 bps
V.29 QAM at 9600 and 7200 bps
V.17 TCM at 14400, 12000, 9600, and
7200 bps
Fax Carrier V.21CH2 (Half Duplex)
Frequencies 1650Hz Mark, 1850Hz Space for
Transmit Originate
1650Hz Mark, 1850Hz Space for
Transmit Answer
V.27
ter 1800Hz Originate/Answer
V.29 QAM 1700Hz Originate/Answer
V.17 TCM 1800Hz Originate/Answer