Specifications

66 Troubleshooting and Diagnostic Procedures
Table 5–1 (Cont.) Troubleshooting Table
Problem Possible Cause Corrective Action
DECvoice device
(VXA0:, VXB0:, and
so on) is visible
when you issue a
"SHOW DEVICE VX"
command, but on
VAX/VMS, modules
fail with device
timeout errors, and
on MDM, modules fail
with "COULD NOT
GENERATE HOST
INTERRUPT" errors.
The DECvoice device
VECTOR is set
incorrectly.
Shutdown and power off the
system, remove the module(s) and
check the vector settings. Reset
and incorrect vector settings. For
information on setting the vectors,
see Chapter 1, Section 1.2. Toggle
the switches back and forth once to
ensure complete switch closure.
When you run VMS or
MDM diagnostics on
all installed modules
simultaneously, the
tests pass, but when
you test a module
separately, it fails with
a device timeout or
host interrupt error.
Vector settings have
been swapped on two
modules.
Run the diagnostics separately
for each module, and correct the
vector settings on the modules that
receive the timeout errors.