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Document ID: YAST-3LCJBR |
IBM 3153 ASCII Terminal Display - Dual/multiple sessions
Applicable to: World-Wide
The 3153 Marketing Reference Guide (G520-9415) also contains information regarding 3153 dual session feature.
It is available via the IBM PSG Fax System:
- call 1-800-IBM-3395 (U.S. only.)
- call 1-919-517-0011 (Worldwide - enter country code.)
and request document #10005.
By IBM Fax Service:
- call 1-800-IBM-4FAX and request document #5704 (U.S. only.)
Dual (Multiple) Sessions by Multiple Ports Information:
- All 3153's support real dual session using the 3153 Main Serial Port and the 3153 Auxiliary Serial Port.
- 3153 is configured for two sessions (in 3153 setup menu 'Sessions'=Two).
3153 has two serial communications cables attached:
- One cable attached to the 3153 Main Port (SES1 EIA)
- One cable attached to the 3153 Auxiliary Port (SES2 AUX)
- The two serial communications cables may be connected to a single host (using two host ports) or to two separate host systems.
- Each 3153 session can have unique setup values (emulation, communication, keyboard setup values).
- The 3153 Parallel Port can have a printer attached and the printer can be used by either 3153 session.
- The user switches between sessions using the left-Ctrl key with the Enter Key (numeric keypad). The 3153 status
- The 3153 status line indicates the active sessions by displaying 'S1' for Session 1 and 'S2' for Session 2.
CAUTION:
- When the 3153 is configured for dual session, generally the same communications cable cannot be used for both 3153 serial ports because:
- The 3153 Main Port is configured as a DTE (when RS-232.) The 3153 Auxiliary Port is configured as a DCE. If both host ports are DTE, the 3153 Main Port serial cable must be a null-modem cable and the 3153 Auxiliary serial cable must be a straight modem cable. If the same communications cable is used for both the Main and Auxiliary Port, only one of the two sessions will work.
Dual (Multiple) Sessions by Single Port Information:
- The 3153 supports dual (multiple) sessions by single port based on host operating system support. RS/6000 with AIX Operating System offers 'DSCREEN'. DSCREEN uses the multiple pages of memory feature in the 3153. AIX allows the user to 'jump' between sessions. AIX is actually controlling which 3153 page of memory is displayed. The 3153 pages of memory does not require AIX to re-send or re-transmitt the next session when the user 'jumps'. The number of multiple sessions is limited to the pages of memory offerred by the 3153. SCO UNIX offers a similiar function. SCO offers 'MSCREEN'.
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Document Category |
Technical Specifications | |
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Date Created |
27-08-97 | |
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Last Updated |
18-03-99 | |
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Revision Date |
17-11-99 | |
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Brand |
IBM Monitors | |
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Product Family |
Terminals | |
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Machine Type |
3153 | |
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Model |
All | |
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