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Document ID: YAST-3LDMYV |
IBM 3153 ASCII Terminal Display - Dual or multiple sessions not working
Applicable to: World-Wide
Symptom:
3153 dual or multiple sessions not working (keyboard and or communication):
- Session 1 works and Session 2 does not work.
- Session 2 works and Session 1 does not work.
- Both sessions are not working.
Background Information:
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 modem cable. If the same communications cable is used for both the Main and Auxiliary Port, only one of the two sessions will work.
Recommended Solution:
- In 3153 setup menu confirm that the 3153 is configured for two sessions (in 3153 setup menu 'Sessions'=Two).
- If one session is working and the other session is not working, determine if the communications cable (modem or null-modem) is incorrect by following:
- Swap the communications cables between Main and Auxiliary. If both the 'working' and 'non-working' session 'moves' to the other port, the 3153 communication ports are working properly. The 'not working' session has an incorrect
communications cable.
Keywords: D/T3153 3153 Dual Two Session Sessions Multiple SES1 SES2 S1 S2 Main Auxiliary EIA AUX DSCREEN RS/6000 RS6000 AIX RISC UNIX RS232 232 RS422 422
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General Information | |
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Date Created |
28-08-97 | |
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Last Updated |
03-12-98 | |
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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 |
Various | |
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