IBM i 830, Руководство по ремонту

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b. Push and hold the test button until all lights go on. The yellow lights
should go on immediately, and the green light should go on
approximately 5 seconds later. The port tester is ready for use if all
lights go on.
v
Leave the system power on.
19. Find the input cable to the failing console or port.
Is the failing console or the failing port attached to a protocol converter?
No Yes
↓
Perform the following:
a.
Disconnect the cable that comes from the system at the protocol
converter.
b. Connect the port tester to the cable.
c.
Go to step 21 of this procedure.
20. Perform the following:
a. Disconnect the input cable from the failing console.
b. Connect the port tester to the input cable.
21. Set the selector switch on the port tester to the left (1) position for a twinaxial
connection. Set the switch to the right (2) position for a twisted pair
connection.
Press and hold the test switch on the port tester for 15 seconds and observe
the lights.
If the port tester has three lights, do the following:
v
If only the top (green) light is on, go to step 31 of this procedure.
v
If both the top (green) and center (yellow) lights are on, go to step 23 of this
procedure.
Note: The center (yellow) light is always on for twisted pair cable and may
be on for fiber optical cable.
v
If only the bottom (yellow) light is on, go to step 24 of this procedure.
v
If all lights are off, go to step 25 of this procedure.
v
If all lights are on, go to step 22 of this procedure.
If the port tester has two lights, do the following:
v
If only the top (green) light is on, go to step 31 of this procedure.
v
If only the bottom (yellow) light is on, go to step 24 of this procedure.
v
If both lights are off, go to step 25 of this procedure.
v
If both lights are on, continue with the next step of this procedure.
22. The tester is in the self-test mode. Check the position of the selector switch.
If the selector switch is not in the correct position, go to step 21 of this
procedure.
If the selector switch is already in the correct position, the port tester is not
working correctly. Exchange the port tester and go to step 18 of this
procedure.
23.
The cable you are testing has an open shield.
Note: The open shield can be checked only on the cable from the twinaxial
workstation attachment to the device or from device to device. Only
one section of cable can be checked at a time. See the
″
SA41-3136, Port
Tester Use
″
information.
Twinaxial Workstation PIPs
470
iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1