173 lines
5.2 KiB
Plaintext
173 lines
5.2 KiB
Plaintext
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Using VT100 Emulation to Access a IBM Mainframe via a 3708 Protocol Conv.
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I. Introduction
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For people who don't have access to a coaxially connected IBM mainframe
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terminal, an IBM compatible PC with a modem and the Packet/PC software
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program makes an excellent substitute for an IBM terminal. However,
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Packet/PC only works with IBM compatible PCs. For non-IBM personal
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computers and IBM compatible computers without Packet/PC, VT100 terminal
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emulation is a good alternative.
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To use modem dial-up to the mainframe, you must have special authorization
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to access the IBM computer through a modem. Contact your RACF
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Administrator to have them send in a request form for you.
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II. Set-up
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Several parameters must be properly set in order to communicate with the
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IBM mainframe. All ASCII terminals and terminal emulation programs can
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change these parameters.
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Baud Rate: 1200 or 2400 It depends on the speed of the modem you are
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using.
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Duplex: Full
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Parity: Even
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Data Bits: 7
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Stop Bits: 1
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III. Logon Procedure
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1. Start your equipment and software.
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2. Make the connection between your equipment and the IBM mainframe. The
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process to do this is dependent upon your equipment and software. The
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instruction manual for your software and modem should explain this process.
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3. After the modem has made connection, you must hit RETURN once. The
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screen will print a header followed by a prompt line:
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======IBM 3708===EC A58809======RID 3708-001 88-0008771========PORT 03======
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C2: Type the number of your terminal:
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===> __
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4. The number to type is 5 and press RETURN, for VT100 emulation.
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Another prompt line appears:
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======IBM 3708===EC A58809======RID 3708-001 88-0008771========PORT 03======
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C2: Type the number of your terminal:
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===> 5_
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==>
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_________
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5. This is the place to type CICS, MAIL, TSO2,or
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any other application name; and press RETURN.
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======IBM 3708===EC A58809======RID 3708-001 88-0008771========PORT 03======
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C2: Type the number of your terminal:
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===> 5___
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==>
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SCICS____
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6. The signon screen for that application will appear. Sign on to this
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application just like you would on a regular IBM terminal.
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7. The application will appear. Only applications and functions in Mod 2
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format work in VT100 emulation.
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8. From now on, the PC will emulate an IBM terminal. Use the keyboard
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conversion chart to locate the keys on your PC that perform the IBM
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terminal functions.
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9. To log-off, exit from the application in the ususal manner and hang-up
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the modem phone line on your computer.
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IV. Troubleshooting Procedures
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If your keyboard appears to be locked, hit CTRL-R (Push down and hold the
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CTRL key and push the R key). This will send a reset signal to the
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mainframe.
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The modems attached to the mainframe have been instructed to hang up
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after 5 minutes of inactivity. This may cause some inconvenience, but it
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was done to free up the dial-up ports as soon as possible when they are
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finished being used. Remember to save any work if you are called away from
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your terminal.
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THE VT100 EMULATION TO IBM MAINFRAME KEY CONVERSION CHART
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To perform
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this function: Type:
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---------------------------------------
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ATTN-------------CTRL A
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BACKTAB----------BACKSPACE OR ESC TAB
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CLEAR------------CTRL C
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CURSOR SELECT----ESC k
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DELETE-----------DELETE
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DEV CNCL---------CTRL X
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DOWN ARROW-------"THE DOWN ARROW"
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DUP--------------CTRL D
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ENTER------------RETURN OR NUMERIC ENTER
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ERASE EOF--------CTRL E
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ERASE INPUT------ESC f
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FIELD MARK-------CTRL F
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HOME-------------ESC H
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IDENT------------ESC z
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INSERT MODE------ESC DELETE
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LEFT ARROW-------"THE LEFT ARROW"
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NEW LINE---------LINE FEED
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NULL/BLANK-------ESC n
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PA1--------------ESC ,
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PA2--------------ESC .
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PA3--------------ESC /
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PF1--------------NUMERIC 1 or ESC 1
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PF2--------------NUMERIC 2 or ESC 2
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PF3--------------NUMERIC 3 OR ESC 3
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PF4--------------NUMERIC 4 OR ESC 4
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PF5--------------NUMERIC 5 OR ESC 5
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PF6--------------NUMERIC 6 OR ESC 6
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PF7--------------NUMERIC 7 OR ESC 7
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PF8--------------NUMERIC 8 OR ESC 8
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PF9--------------NUMERIC 9 OR ESC 9
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PF10-------------PF1 OR ESC 0
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PF11-------------PF2 OR ESC -
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PF12-------------PF3 OR ESC =
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PF13-------------ESC !
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PF14-------------ESC @
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PF15-------------ESC #
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PF16-------------ESC $
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PF17-------------ESC %
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PF18-------------ESC ^
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PF19-------------ESC &
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PF20-------------ESC *
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PF21-------------ESC (
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PF22-------------ESC )
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PF23-------------ESC _
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PF24-------------ESC +
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PRINT------------CTRL P
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REFRESH----------CTRL U
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RESET------------CTRL R
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RESUME DISPLAY---CTRL Y
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RESUME PRINTER---CTRL p
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RIGHT ARROW------"THE RIGHT ARROW"
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STATUS ON/OFF----CTRL W
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SUSPEND DISPLAY--CTRL T
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SUSPEND PRINTER--CTRL o
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SYS REQ----------ESC S
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TAB--------------TAB
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TYPE AHEAD-------ESC a
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UP ARROW---------"THE UP ARROW"
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For key sequences that begin with ESC, press and release ESC and then press
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the other key.
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For key sequences that begin with CTRL, press and hold CTRL while pressing
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the other key.
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For key sequences that contain NUMERIC, press the appropriate key on the
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numeric key pad.
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