14,400 Modem & Fax  (250-3036)     Specifications      Faxback Doc. # 3258

Modem Compatibility:............................CITT V.32bis at 14,400 bps
                                             CCITT V.32 at 9600 & 4800 bps
                                                     CCITT V.21 at 300 bps
                                                     Bell 212A at 1200 bps
                                                       Bell 103 at 300 bps
                                         Direct mode supported (dumb mode)
                                                CCITT V.22 bis at 2400 bps
                                      Bell 212A and CCITT V.22 at 1200 bps
                                                 Bell 103J, 113 at 300 bps

Fax Compatibility:...............................................Group III
                                                  CCITT V.17 at 14,400 bps
                                                           CCITT T.4 & T.3
                                                       EIA/TIA 578 class I
                                                              EIA class II
                                       Fax transmitting:  CCITT V.27ter at
                                                                  2400 bps
                                                 CCITT V.27ter at 4800 bps
                                                    CCITT V.29 at 7200 bps
                                                    CCITT V.29 at 9600 bps

Group Compatibility:......................................Group II and III
Command Compatibility:................................Hayes AT command set
Modem Data Rates:..........14,400, 12,000, 9600, 4800, 2400, 1200, 300 bps
Fax Data Rate:...............................14,400, 9600, 7200, 4800 bps 
                                                          send and receive
Speed Detection:.........................CCITT Automode detection protocol
                           compatibilities with both step up and step down
Answer Mode:...................Automatically set to speed of incoming call
Test modes:............Analog (local) loopback (both initiate and respond)
                                               Software command controlled

Receiver Sensitivity:..................-43 dBm under worst case conditions
                                                    transmit level -10 dBm
Transmit Level:....................................................-10 dBm
Line Impedance:...................................................600 ohms
Error Rate:...........................1 in 105 characters on standard 3002
                                                        unconditioned line
Modulation:..............................Trellis coded modulation (TCM) at
                                      9600 bps, QAM at 9600 (non-trellis),
                                       4800 and 2400 bps, PSK at 1200 bps,
                                                            FSK at 300 bps

Dialing:............................Pulse: Rotary (10 pps) Tone: Including
                                      * and #, duration 95 ms (adjustable)
Command Buffer:..............................................42 characters
Temperature:.............................Operating: 0 to 40 C (32 to 104F)
                                         Storage: -20 to 70C (-60 to 158F)
Humidity:..........................................0 to 90% Non-condensing

(br/all-10/17/94)