System Startup, Configuration, and Shutdown Reference Manual (32650-90892)

192 AppendixA

Using the Access Port (AP)

Conﬁguring the Console

Should an error be encountered during a TC, the system displays following error message:

Unable to verify assertion of TOC_SYS backplane signal

(APERR 04).

Testing the AP

Entering TA executes the AP self-test. The system displays a message during self-test:

CM>TA Return

Console data arriving during self-test execution

will be lost.

Type Y to confirm your intention to execute AP Self-Test (Y/N): Y

Starting AP Self-Test. Last subtest will be 30.

Executing test number:

00 01 02 03 04 05 06 07 08 09

10 11 12 13 14 15 16 17 18 19

20 21 22 23 24 25 26 27 28 29

AP Self-Test passed. (APMSG 01)

If the self-test fails:

AP Self-Test failed subtest

(APERR 05).

where

is the number of the test causing the failure. If the self-test hangs, the last

number displayed is the failing subtest, provided that the numbers have appeared in

numerical order (which is the expected sequence).

During the execution of self-test, some of the test numbers shown above may have the

mnemonics NC, NT1H, or NS1H appended to them. Whether or not these appear depends

upon the test hood conﬁguration present at the time of test execution.

NOTE The master terminal after the completion of the self-test is the terminal that

was master when the test was initiated.

Using Control Commands

The following section describes additional commands that can be executed with the

simultaneous use of the control key.

Entering Control Mode

Both a local and remote user can enter

CTRL B to initiate a mode change from console

mode to control mode.