PATTON ELECTRONICS COMPANY
==========================

   1140

   Modem Type               Data (synchronous/asynchronous)       
   Maximum Data Rate        38.4Kbps                              
   Data Bus                 External                              
   Data Modulation Protocol Proprietary                           

<gopher://bitreich.org/I/th99/t/P-R/51570-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |     Purpose      | Location |      Purpose      | Location |
   |------------------+----------+-------------------+----------|
   | Line out         |   CN1    | RS-232/422        |   CN3    |
   |------------------+----------+-------------------+----------|
   | Line in          |   CN2    |                   |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      CARRIER CONTROL                       |
   |------------------------------------------------------------|
   |            Setting            |           SW3/H            |
   |-------------------------------+----------------------------|
   |>> Always on                   |            Off             |
   |-------------------------------+----------------------------|
   |          Follows RTS          |             On             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        CLOCK SOURCE                        |
   |------------------------------------------------------------|
   |       Setting       |       SW3/E       |      SW3/F       |
   |---------------------+-------------------+------------------|
   |>> Internal transmit |        On         |        On        |
   |---------------------+-------------------+------------------|
   |   Receive recover   |        Off        |        On        |
   |---------------------+-------------------+------------------|
   |  External transmit  |        On         |       Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               DATA RATE FLUCTUATION ALLOWED                |
   |------------------------------------------------------------|
   |            Setting            |           SW4/C            |
   |-------------------------------+----------------------------|
   |          -2.5% to 1%          |            Off             |
   |-------------------------------+----------------------------|
   |>> -2.5% to 2.3%               |             On             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    LOOPBACK TEST SELECT                    |
   |------------------------------------------------------------|
   |            Setting            |            SW2             |
   |-------------------------------+----------------------------|
   |     Local analog loopback     |             1              |
   |-------------------------------+----------------------------|
   |       Normal operation        |             2              |
   |-------------------------------+----------------------------|
   |    Remote digital loopback    |             3              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                            MODE                            |
   |------------------------------------------------------------|
   |            Setting            |           SW3/G            |
   |-------------------------------+----------------------------|
   |>> Asynchronous                |             On             |
   |-------------------------------+----------------------------|
   |          Synchronous          |            Off             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                       RTS/CTS DELAY                        |
   |------------------------------------------------------------|
   |      Setting       |       SW4/D       |       SW4/E       |
   |--------------------+-------------------+-------------------|
   |>> 7ms              |        On         |        On         |
   |--------------------+-------------------+-------------------|
   |        53ms        |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |      Disabled      |        On         |        Off        |
   |--------------------+-------------------+-------------------|
   |      Disabled      |        Off        |        Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                           SPEED                            |
   |------------------------------------------------------------|
   |  Setting   |   SW3/A   |   SW3/B   |   SW3/C   |   SW3/D   |
   |------------+-----------+-----------+-----------+-----------|
   |  1.2Kbps   |    On     |    On     |    On     |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |  1.8Kbps   |    Off    |    On     |    On     |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |  2.4Kbps   |    On     |    Off    |    On     |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |  3.6Kbps   |    Off    |    Off    |    On     |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |  4.8Kbps   |    On     |    On     |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |  7.2Kbps   |    Off    |    On     |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |>> 9.6Kbps  |    On     |    Off    |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |  14.4Kbps  |    Off    |    Off    |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |  19.2Kbps  |    On     |    On     |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |  28.8Kbps  |    Off    |    On     |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |  38.4Kbps  |    On     |    On     |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |  57.6Kbps  |    Off    |    On     |    Off    |    Off    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        TEST SELECT                         |
   |------------------------------------------------------------|
   |            Setting            |            SW1             |
   |-------------------------------+----------------------------|
   |   Generate 511 test pattern   |             1              |
   |-------------------------------+----------------------------|
   |       Normal operation        |             2              |
   |-------------------------------+----------------------------|
   |  Generate 511E test pattern   |             3              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     V.54 LOOPBACK TEST                     |
   |------------------------------------------------------------|
   |            Setting            |           SW4/H            |
   |-------------------------------+----------------------------|
   |>> Enabled                     |            Off             |
   |-------------------------------+----------------------------|
   |           Disabled            |             On             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        WORD LENGTH                         |
   |------------------------------------------------------------|
   |      Setting       |       SW4/A       |       SW4/B       |
   |--------------------+-------------------+-------------------|
   |       8 bit        |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |       9 bit        |        On         |        On         |
   |--------------------+-------------------+-------------------|
   |>> 10 bit           |        Off        |        Off        |
   |--------------------+-------------------+-------------------|
   |       11 bit       |        On         |        Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                FACTORY CONFIGURED SETTINGS                 |
   |------------------------------------------------------------|
   |           Switch            |           Setting            |
   |-----------------------------+------------------------------|
   |            SW4/F            |           Not used           |
   |-----------------------------+------------------------------|
   |            SW4/G            |           Not used           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   |  LED  | Color |  Status  |            Condition            |
   |-------+-------+----------+---------------------------------|
   | ERROR |  Red  | Blinking |   Errors detected during V.54   |
   |       |       |          |              test               |
   |-------+-------+----------+---------------------------------|
   | ERROR |  Red  |    On    |     Test pattern generator      |
   |       |       |          |           functional            |
   |-------+-------+----------+---------------------------------|
   | ERROR |  Red  |   Off    |        Normal operation         |
   |-------+-------+----------+---------------------------------|
   | TEST  |  Red  |    On    |  Local analog loopback test in  |
   |       |       |          |            progress             |
   |-------+-------+----------+---------------------------------|
   | TEST  |  Red  |   Off    |        Normal operation         |
   +------------------------------------------------------------+