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APPENDIX B


                                 APPENDIX B
                                 ----------

              [part 19 from «The Winn Rosch HARDWARE  BIBLE»]
              [Brady, New York, 1988                        ]

         © Copyright  1991  by  Sergey Shulgin [SHS].  You can copy
         this document for non-commercial use without changes only.

         This document  was  printed  by  Sergey  Shulgin from Moscow
         Institute of Physics and Technology,  Laser Center  lab.  If
         you have  some  interest to this problem,  please call me by
         modem or voice.
               Coord:  Dolgoprudny,  Moscow region, Moscow Institute
                       of Physics and Technology, Institutsky per, 9
                       Laser Center lab.
               Phone:  (095) 408-79-88 from 10:00 till 19:00 by voice
                       (095) 408-79-88 from 19:00 till 08:00 by modem

          [connect to «Player's Dream» BBS and send message for me]
         +-----------------------------------------------------------+
         |        Welcome to «Player's Dream» BBS station!!!         |
         |     [1st BBS Station of United Group Games in Russia]     |
         |                                                           |
         |   Operating time: 19:00–08:00 Mon.-Sat.                   |
         |                   24h Sunday.                             |
         |                                                           |
         |   phone: (095) 408-79-88                                    |
         |                                                           |
         |   modem:up to 9600 with MNP protocol                      |
         |                                                           |
         |   SysOp: Yaroslav Levashov, Sergey Shulgin                |
         +-----------------------------------------------------------+



                          Hayes Modem S-Registers
                          -----------------------'
         +-----+---------+---------+-------+-------------------------+
         | Reg |  Range  |  Units  | Deflt |        Description      |
         +-----+---------+---------+-------+-------------------------+
         | S0  | 0-255   |  rings  |  0    | rings before modem answ |
         | S1  | 0-255   |  rings  |  0    | count number of rings   |
         | S2  | 0-127   |  ASCII  | 43(+) | escape code             |
         | S3  | 0-127   |  ASCII  | 13(CR)| char used as return     |
         | S4  | 0-127   |  ASCII  | 10(LF)| char used as line feed  |
         | S5  | 0–32,127|  ASCII  | 08    | char used as backspace  |
         | S6  | 2-255   |  Sec.   |  2    | wait for dial tone      |
         |     |         |         |       | before Blind Dialing    |
         | S7  | 1-255   |  Sec.   |  30   | time to wait for carrier|
         | S8  | 0-255   |  Sec.   |  2    | length of comma pause   |
         | S9  | 1-255   | 1/10 Sec|  6    | carrier detect response |
         |     |         |         |       | time                    |
         | S10 | 1-255   | 1/10 Sec|  7    | delay before hang up    |
         | S11 | 50-255  | msec    |  95   | DTMF Dialing speed      |
         | S12 | 0-255   | 1/50 Sec|  50   | escape code dead time   |
         | S13 |         |         |       | reserved                |
         +-----+---------+---------+-------+-------------------------+
         | S14 | bit-mapped        | AA (hex)  modem options          |
         |                                                           |
         |       bit 0   reserved                                    |
         |       bit 1   command     echo                            |
         |                           0=no echo                       |
         |                           1=echo                          |
         |       bit 2   result codes                                |
         |                           0=enabled                       |
         |                           1=disabled                      |
         |       bit 3   verbose mode                                |
         |                           0=short form result codes       |
         |                           1=verbose result codes          |
         |       bit 4   dumb mode                                   |
         |                           0=modem acts smart              |
         |                           1=modem acts dumb               |
         |       bit 5   dial method                                 |
         |                           0=tone                          |
         |                           1=pulse                         |
         |       bit 6   reserved                                    |
         |       bit 7   originate/answer mode                       |
         |                           0=answer                        |
         |                           1=originate                     |
         +-----+---------+---------+-------+-------------------------+
         | S15 |         |         |       | Reserved                |
         +-----+---------+---------+-------+-------------------------+
         | S16 | bit-mapped        |       | modem test options      |
         |                                                           |
         |       bit 0   local analog loopback                       |
         |                           0=disabled                      |
         |                           1=enabled                       |
         |       bit 1   reserved                                    |
         |       bit 2   local digital loopback                      |
         |                           0=disabled                      |
         |                           1=enabled                       |
         |       bit 3   status bit                                  |
         |                           0=loopback off                  |
         |                           1=loopback in progress          |
         |       bit 4   initiate remote digital loopback            |
         |                           0=disabled                      |
         |                           1=enabled                       |
         |       bit 5   initiate remote digital loopback with test  |
         |               message and error count                     |
         |                           0=disabled                      |
         |                           1=enabled                       |
         |       bit 6   local analog loopback with self test        |
         |                           0=disabled                      |
         |                           1=enabled                       |
         |       bit 7   reserved                                    |
         +-----+---------+---------+-------+-------------------------+
         | S17 |         |         |       | Reserved                |
         | S18 | 0-255   |  Sec.   |   0   | Test duration timer     |
         | S19 |         |         |       | Reserved                |
         | S20 |         |         |       | Reserved                |
         +-----+---------+---------+-------+-------------------------+
         | S21   bit-mapped                  modem options           |
         |                                                           |
         |       bit 0   telco jack used                             |
         |                           0=RJ-11/RJ-41S/RJ-45S           |
         |                           1=RJ-12/RJ-13                   |
         |       bit 1   reserved                                    |
         |       bit 2   RTS/CTS handling                            |
         |                           0=RTS follows CTS               |
         |                           1=CTS always ON                 |
         |       bit 3,4 DTR handling                                |
         |                           0,0=modem ignores DTR           |
         |                           0,1=modem to command state when |
         |                               DTR goes OFF                |
         |                           1,0=modem hangs up when DTR     |
         |                               goes OFF                    |
         |                           1,1=modem initializes when DTR  |
         |                               goes OFF                    |
         |       bit 5   DCD handling                                |
         |                           0=DCD always on                 |
         |                           1=DCD indicates presence of     |
         |                             carrier                       |
         |       bit 6   DSR handling                                |
         |                           0=DSR always on                 |
         |                           1=DSR indicates modem is off-   |
         |                             hook and in date mode         |
         |       bit 7   long space disconnect                       |
         |                           0=disabled                      |
         |                           1=enabled                       |
         +-----+---------+---------+-------+-------------------------+
         | S22 | bit-mapped        |76(Hex)| modem option register   |
         |                                                           |
         |       bit 0,1 speaker volume                              |
         |                           0,0=low                         |
         |                           0,1=low                         |
         |                           1,0=medium                      |
         |                           1,1=high                        |
         |       bit 2,3 speaker control                             |
         |                           0,0=speaker disabled            |
         |                           0,1=speaker on until carrier    |
         |                               detected                    |
         |                           1,0=speaker always on           |
         |                           1,1=speaker on between dialing  |
         |                               and carrier detect          |
         |       bit 4,5,6                                           |
         |               result code options                         |
         |                           0,0,0=300 baud modem result     |
         |                                 codes only                |
         |                           1,0,0=modem does not detect     |
         |                                 dialtone or busy          |
         |                           1,0,1=modem detects dialtone    |
         |                                 only                      |
         |                           1,1,0=modem detects busy signal |
         |                                 only                      |
         |                           1,1,1=modem detects dialtone    |
         |                                 and busy other settings   |
         |                                 undefined                 |
         |       bit 7   make/break pulse dial ratio                 |
         |                           0=39% make, 61% break           |
         |                           1=33% make, 67% break           |
         +-----+---------+---------+-------+-------------------------+
         | S23 | bit-mapped                | modem option register   |
         |                                                           |
         |       bit 0   obey request from remote modem for remote   |
         |               digital loopback                            |
         |                           0=disabled                      |
         |                           1=enabled                       |
         |       bit 1,2 communication rate                          |
         |                           0,0=0 to 300 bps                |
         |                           0,1=reserved                    |
         |                           1,0=1200 bps                    |
         |                           1,1=2400 bps                    |
         |       bit 3   reserved                                    |
         |       bit 4,5 parity option                               |
         |                           0,0=even                        |
         |                           0,1=space                       |
         |                           1,0=odd                         |
         |                           1,1=mark/none                   |
         |       bit 6,7 quard tones                                 |
         |                           0,0=disabled                    |
         |                           0,1=550 Hz quard tone           |
         |                           1,0=1800 Hz guard tone          |
         |                           1,1=reserved                    |
         +-----+---------+---------+-------+-------------------------+
         | S24 |         |         |       | Reserved                |
         | S25 | 0-255   |1/100 Sec|   5   | delay to DTR            |
         | S26 | 0-255   |1/100 Sec|   1   | RTS to CTS delay        |
         +-----+---------+---------+-------+-------------------------+
         | S27 | bit-mapped        |40(Hex)| modem options register  |
         |                                                           |
         |       bit 0,1 transmission mode                           |
         |                           0,0=asynchronous                |
         |                           0,1=synchronous with async call |
         |                               placement                   |
         |                           1,0=synchronous with stored     |
         |                               number dialing              |
         |                           1,1=synchronous with manual     |
         |                               dialing                     |
         |       bit 2   dialup or lease-line operation              |
         |                           0=dialup line                   |
         |                           1=leased-line                   |
         |       bit 3   reserved                                    |
         |       bit 4,5 source of synchronous clock                 |
         |                           0,0=local modem                 |
         |                           0,1=host computer or data       |
         |                               terminal                    |
         |                           1,0=derived from received       |
         |                               carrier                     |
         |                           1,1=reserved                    |
         |       bit 6   Bell or CCITT operation                     |
         |                           0=CCITT v.22 bis/v.22           |
         |                           1=Bell 212A                     |
         |       bit 7   reserved                                    |
         +-----------------------------------------------------------+


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