IBM 5394 Manual page 22

Table 1 (Page 3 of 3). Extended Communications Test SRCs
SRC Test Level Instructions
618DXX ALL The extended test sequence has detected a communications failure. Do
618EXX LEVELS the following:
618FXX
1. Write down the SRC and test-level digit that appear on the screen.
2. Exit the test mode as follows:
•
Set the control unit power switch to off (0) .
•
Set the control unit Test switch to Off .
•
Make sure that your modem or DCE is set up for normal opera-
ti on.
•
Make sure that the communications cable is attached to the
modem or DCE and that all three switches are in the OPER posi-
ti on.
•
Set the control unit power switch to on (I) .
3. Take one of the following actions, depending on the test-level digit
that you recorded in step 1 on page 15:
•
If test level is 3, report the SRC and test-level digit to your cus-
tomer service representative.
•
If test level is 4, contact your host system operator and report:
- A communications problem exists.
-
The problem does not appear to be in the control unit.
-
The attached modem or DCE failed the local loopback test.
•
If test level is 6, contact your host system operator and report:
-
A communications problem exists.
- The problem does not appear to be in the control unit.
-
The attached modem or DCE passed the local loopback test.
- The remote loopback test failed.
-
The failure was caused either by the communications
network or by the host system.
Chapter 3. Setup and Operation of an IBM 5394 with a V.35 Communications Interface
15