IBM 5500-01E, Руководство по эксплуатации, установке и обслуживанию

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Chapter 6: Twinax Client Cabling Requirements and Problem Solving
132 Planning, Installation, and Maintenance Guide
Test for Cable Drop to Last Workstation on the Data Path
Use the following procedure to test the cable drop to the last workstation of
the data path:
1. Install the test connector on the cable drop to the last workstation.
2. Check for the resistances shown in Figure 69.
3. If only the last workstation is failing, do the following steps:
a. Disconnect the last workstation from the cabling system at the
Figure 68: Distribution Panel to Work Stations Except Last Workstation
Connect Meter Leads As Shown Below
Positive at Red Cable Negative at Blue Cable Normal Resistance
Red Red
0 to 14
W
a
a. If surge suppressors are installed on the line, the normal resistance is 36
to 54
W
.
Green Green 0 to 14
W
Red Green > 5000
W
Green Red > 5000
W
Shield Red > 5000
W
Shield Green > 5000
W
Figure 69: Last Workstation
Connector Meter Leads As Shown Below
Positive Negative Normal Resistance
Red Green
140 to 180
W a
a. If surge suppressors are installed on the line, the normal resistance is 175
to 225
W
for red to green and 90 to 110
W
for red or green to shells.
Shield Red 65 to 95
W
Shield Green 65 to 95
W