Power 775 D-Link Service Procedure
PN: 41U8487, EC N44172
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OVERVIEW
You should be performing this procedure if you have determined a D-Link optical cable or port has poor signal quality or
has failed and may need replacement.
This procedure describes how to isolate a problem in optical data transmission over an D-Link to either (a) a problem in the
transmitting node, (b) a problem in the receiving node, or (c) a problem in the D-Link optical cable which interconnects
them, or in the associated optical connectors.
This procedure also instructs how to test, remove, clean, reinstall, and re-test the D-Link optical cables, if cleaning or
replacement is required.
This section, Section 2, is an overview. Do not start the service procedure until Section 3, which contains the detailed steps.
2.1
Safety Notices
Read “Safety_Notices “ available from InfoCenter – see Section 1.3.
http://publib.boulder.ibm.com/infocenter/powersys/v3r1m5/topic/p7hdx/G229-9054.pdf
The following cautions apply to all Power775 service procedures:
CAUTION:
Energy hazard present. Shorting might result in system outage and possible physical injury. Remove all metallic
jewelry before servicing. (C001)
CAUTION:
The doors and covers to the product are to be closed at all times except for service by trained service personnel. All
covers must be replaced and doors locked at the conclusion of the service operation. (C013)
CAUTION:
Servicing of this product or unit is to be performed by trained service personnel only. (C032)
The following caution specifically pertains to this Power775 service procedure.
CAUTION:
This product contains Class 1M lasers. Do not view directly with optical instruments. (C028)
DANGER:
Hazardous voltage present. Voltages present constitute a shock hazard, which can cause
severe injury or death. (L004)
CAUTION:
Sharp edges, corners, or joints nearby. (L006)
