DS8000 Service Documentation Version 7.5

Exchange the RIO cable

Before you begin

Icon for electrostatic discharge wrist strap Use approved ESD procedures to prevent damage.

Attention:

This is not a stand-alone procedure. Customer disruption and damage to the hardware might occur if microcode and power boundaries are not in the proper conditions for this service action.
If you were sent here by a serviceable event FRU repair, the microcode and power boundaries have already been set.
If you were not sent here by a serviceable event FRU repair, see MAP1230 Replace a FRU without using a serviceable event.

Notes:

All the cables and FRUs to be removed must be uniquely identified so they can be reinstalled correctly.
If an installed earthquake resistance kit prevents you from accessing this FRU, refer to MAP1600.

Note: Both ends of the RIO cable use the same connector.

Remove the RIO cable

Procedure

To locate this FRU, do one of the following and then return here and continue to replace the FRU:
- If this FRU has a FRU identify indicator, use the FRU identify indicator, which is listed in MAP1240 Locating FRUs using identify indicators. If not, use the location code.
  Note: There might be cases where the FRU failure or fencing conditions prevent the FRU LED indicator from being lit even if the FRU has power.
- Use the location code, which is listed in MAP1245 Finding FRUs by using location codes.
- If there is no FRU identify indicator or location code, you were sent here by an isolation MAP or symbolic FRU procedure. Use the information in that procedure and the figures in this procedure to locate the proper part to exchange.
Most, but not all, FRUs have identify indicators. Use the flashing amber or solid blue FRU identify indicators to ensure that you are working on the correct enclosure or FRU.
- The "light path" identify LEDs are a hierarchy of LEDs that can identify the rack, enclosure, FRU, and even the FRU connector to which a cable is connected.
- For more information, refer to MAP1240 Locating FRUs using identify indicators.
Remove the RIO cable . Either end of the cable can be unplugged first.
1. Grab the black body of the RIO cable and gently push it into the RIO connector. (This makes it easier to unlatch the blue release handle.)
2. While maintaining a gentle inward push, pull the RIO cable connector blue release handle towards you.
3. When the blue release handle is free, unplug the cable.
  Figure 1. RIO cable at CEC enclosure

Install the RIO cable

Procedure

The new cable must have the proper location code labels applied to each end.
1. Observe the location code label on each end of the cable that has been removed.
2. Select the proper location code labels from the label sheet shipped with the new cable.
3. Apply the labels to the new cable.
  Note: The cable is not directional, it has the same connectors on each end.
Align the RIO cable connector with the sheet metal guide bracket and then gently push it in until it fully seats and latches.
Ensure that the connector is properly latched. Do not touch the blue release handle, instead gently pull on the black cable.
Exit this service information center parts exchange procedure and return to the procedure that sent you here.