IBM 7133 Series, Service Manual

Page: 133 / 230

|
Step 11
| (from step 9 on page 2-2330-12)
|
Important Notice
| Because this step includes a wrap test, it must not be performed under concurrent
| maintenance unless the subsystem has adapter microcode ABOVE the level
| shown here. Otherwise, unexpected results might occur.
| All other types of SSA adapter have microcode that is above the levels shown here.
|
Adapter Type
|
Feature Code
|
ROS Level and ID
|
4–D
|
6214
|
1602
|
4–G
|
6216
|
1603
| 1. A diskette that contains adapter microcode of the correct level is supplied with the
| Fibre-Optic Extenders. Ensure that the microcode has been installed. Go no further
| with these instructions until the microcode is installed. (See 4 on page 2-2330-2
| if you need to load the microcode.)
| 2. In the next step, you are going to disconnect the fiber optic cables. Before you do so,
| note the identifications of the fiber optic cables to ensure that you reconnect them
| correctly later.
| 3. Disconnect the fiber optic cables
1
from the Fibre-Optic Extender.
| 4. Find the wrap cable and adapter assembly that is provided with the Fibre-Optic
| Extender.
| 5. Remove the wrap cable and adapter assembly from its plastic bag.
| 6. If the wrap cable and adapter assembly has a protective cover at each end, remove
| those covers.
| 7. Disconnect the wrap cable
2
from the wrap adapter
3
.
| 8. Connect the wrap cable
2
to the connectors of the Fibre-Optic Extender.
Chapter 2. Problem Determination Procedures
2-2330-13