FaxModem  (250-3542)         Specifications            Faxback Doc. # 2595

*     9600 bps send & receive fax/modem with automatic
      fallback to 7200, 4800, and 2400 bps

*     2400 bps data modem

*     Intelligent power saving circuit 

*     Fully Hayes compatible  

*     Compatible with EIA-578 Class 1 and proposed EA-592
      Class 2 command fax software

*     Compatibility:

Fax Modes
     CCITT V.29.............  9600bps/7200bps transmit and
                              receive 
     CCITT V.27 ter.........  4800/2400 bps transmit and
                              receive
     CCITT V.21 CHANNEL 2...  300 bps transmit and receive

Data modes 
     CCITT V.23.............  75 bps/1200 bps
     CCITT V.22 bis.........  2400 bps
     CCITT V.21.............  300 bps.
     BELL 212A..............  1200bps
     BELL 103...............  300 bps

Error Correction
     CCITT V.42
     MNP 2,3,4

Data Compression
     CCITT V.42bis
     NNP 5

*     Modulation:
        9600 bps.............. 16 - QAM
        7200 bps.............. 8 - QAM
        4800 bps.............. 8 - DPSK
        2400 bps.............. DPSK/QAM
        1200 bps.............. DPSK
         300 bps.............. FSK

*     Operation:
        Full duplex or half duplex in data mode
        Half duplex in fax mode

*     Data Format:
        Serial, binary, asynchronous
        7 or 8 data bit, 1 or 2 stop bits 
        odd, even, mark, space or no parity

*     Dialing capability:
        Auto dial (tone,& pulse)

*     Answer Mode:
        Auto or manual answer 

*     Call Progress Monitors:
        Dial tone, busy tone, ringback tone 

*     Configuration:
        Two user-selected configurations allowed in non-
        volatile RAM

*     Diagnostics:
        Remote digital loop and remote digital loop self test 
        Analog loop and analog loop self test 
        Digital loop test 
        Power-on self test

*     Audio monitor:
        Programmable speaker volume control 

*     Command buffer:
        40 characters, with error report 

*     Stored Dial Number:
        Allowed storage of up to 4 dial strings with 36-digits
        each

*     Receive sensitivity:
        -43 dm

*     Transmit level:
        -12 dBm

*     Interface:
        RS - 232 signal, TTL level



(smm/jej-05/11/94)