Two Technologies TechTerm TT1R2, Техническое справочное руководство

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TECHTERM TERMINALS
Document 15776(1.0.0.0) 27
C
HAPTER
6
TROUBLESHOOTING
Cursor does not appear on display
Possible Cause:
No power to terminal (host supplied)
Solution:
Verify proper voltage to terminal
Possible Cause:
No power to terminal (adapter supplied)
Solution:
Verify wall plug is functional and wiring of adapter (if wired as kit)
Possible Cause:
Reversed polarity, improper wiring or wrong cable type
Solution:
Check cable and connector wiring
Possible Cause: Cursor not enabled
Solution:
Re-enable the cursor by sending an Esc [4t (ANSI mode) or Esc F (Private mode) or
by changing the CURSOR parameter setting
Terminal resets or locks-up
Possible Cause:
Low voltage output
Solution:
Verify proper voltage to terminal
Possible Cause:
Cable resistance too high or wire gauge too small
Solution:
Cable should be 26 AWG or larger
Possible Cause:
Handshaking between host and terminal
Solution: When using handshaking, verify that the wiring between the host and terminal is
correct, that you have the HANDSHAKE parameter enabled and that the
handshake line from the host is asserted
When not using handshaking, make sure you have the HANDSHAKE parameter
disabled
Terminal does not perform self-test
Possible Cause:
Self-test parameter disabled
Solution: Change SELF TEST parameter to ENABLE