![background image](http://html2.mh-extra.com/html/racal-instruments/1257/1257_manual_3121580174.webp)
1257 User Manual
EADS North America Defense
Troubleshooting C-5
Test and Services, Inc.
©
200
IEEE-488 (GPIB) Remote Interface
PROBLEM
POSSIBLE CAUSES
WHAT TO DO
•
1257 is not set for remote
GPIB operation.
•
Use front-panel controls to set
the 1257 for GPIB operation.
See
Chapter 4, GPIB AND
RS-232 INTERFACES
, under
the heading
Selecting the
GPIB Interface
.
•
Commands sent to wrong
GPIB address.
•
Make sure that the commands
are sent to the GPIB address
currently assigned to the 1257
(to set the 1257 GPIB address,
see
Chapter 4, GPIB and RS-
232 Interfaces
, under the
heading
Setting the GPIB
Address
).
1257 does not respond to
GPIB commands.
•
The 1257 is set to the same
GPIB address as another
device in the system.
•
Make sure that the 1257 is set
to a unique GPIB address(to
set the 1257 GPIB address,
see
Chapter 4, GPIB and RS-
232 Interfaces
, under the
heading
Setting the GPIB
Address
).
Drawers
PROBLEM
POSSIBLE CAUSES
WHAT TO DO
Drawer indicates an “empty
slot” on the front-panel
display.
•
Drawer not properly seated
in slot.
•
Loosen the retaining screws of
the drawer. Pull the drawer
part-way out, then gently push
it back in until it stops. Then
press it firmly to seat its
connector with the backplane
connector. When properly
installed, the panel of the
drawer is flush with the rear
panel of the 1257.