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IBM System/7 Functional Characteristics - All about the IBM 1130 ...

IBM System/7 Functional Characteristics - All about the IBM 1130 ...

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". — •• 11•111•MI !IF limpuppim 414.11 pp !I lip ppm poli!I pi pi FRIA, IW7FUNCTIONAL DESCRIPTIONThe Binary Synchronous Communications Adapter (BSCA) is an optional feature thatmay reside in <strong>the</strong> 5010 Processor Module Models A or E.The BSCA controls <strong>the</strong> transfer of serial data to and from ano<strong>the</strong>r system at a remotelocation via a data set and communications line facility. The BSCA enables <strong>the</strong> <strong>System</strong>/7to communicate in a synchronous communications mode with any of <strong>the</strong> following configurations,each having its own binary synchronous communications facility.• <strong>System</strong>/7 to <strong>System</strong>/7(via point-to-point switched or leased lines only)• <strong>System</strong>/7 to <strong>System</strong>/3• <strong>System</strong>/7 to <strong>System</strong>/370 models 115 and 125(via <strong>System</strong>/370 integrated communications adapter)• <strong>System</strong>/7 to <strong>System</strong>/370 Model 135(via <strong>System</strong>/370 Model 135 integrated communications adapter, <strong>IBM</strong> 2701, 2703,3704, or 3705)• <strong>System</strong>/7 to <strong>System</strong>/370 Model 145 or larger(via <strong>IBM</strong> 2701, 2703, 3704, or 3705)Data to be transmitted or received by <strong>the</strong> <strong>System</strong>/7 is presented to <strong>the</strong> BSCA in EBCDICor ASCII. EBCDIC data received by <strong>the</strong> <strong>System</strong>/7 is sent into storage without any codetranslation. For ASCII characters, <strong>the</strong> BSCA adjusts <strong>the</strong> ninth (parity) bit to conform to<strong>System</strong>/7 parity requirements.The BSCA•operates in half-duplex mode; that is, <strong>the</strong> <strong>System</strong>/7 or <strong>the</strong> host system canei<strong>the</strong>r transmit or receive data, but cannot transmit and receive simultaneously. Datarates are from 600 bits per second to 50,000 bits per second depending on <strong>the</strong> modemselected.The following are <strong>the</strong> pluggable options for <strong>the</strong> BSCA feature.• Modem has a ring indicator or no ring indicator• a 2 or 4 wire line• Program or nonprogram control of data terminal ready• BSCA is a tributary on a multipoint network• Point-to-point network• <strong>System</strong>/7 provides <strong>the</strong> answer tone• Multipoint hexadecimal address• Internal clock speeds-600, 1200, 2000, or 2400 bits per second (BPS)<strong>IBM</strong> MODEMSThe BSCA can communicate with ano<strong>the</strong>r system over private lines, leased commoncarrierfacilities, or switched voice-grade common-carrier lines.The following modems can be used with <strong>the</strong> BSCA.<strong>IBM</strong> United States ModemsModem Rate (bits/sec) Line type3872 2400/1200 2 or 4 wire3875 7200/3600 2 or 4 wireIntegrated 1200 2 or 4 wire8-2 GA34-0003

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