IBM 5500-01E, Operational, Installation, And Maintenance Manual

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Chapter 6: Twinax Client Cabling Requirements and
Problem Solving
This section describes the 5500 Control Unit’s twinax cabling requirements,
common problems and diagnostic tests. This section contains a step-by-step
procedure to resolve cabling problems and can be used for diagnosis with
three different cabling methods: twinax communication over standard twinax,
twinax over UTP, and twinax over IBM Cabling System.
DANGER
To avoid a shock hazard, do not connect or disconnect any cables or
perform installation, maintenance, or reconfiguration of this product during
an electrical storm.
DANGER
To avoid a shock hazard:
The power cord must be connected to a properly wired and earthed
receptacle.
Any equipment to which this product will be attached must also be con-
nected to properly wired receptacles.
DANGER
When possible, use one hand to connect or disconnect signal cables to
prevent a possible shock from touching two surfaces with different
electrical potentials.