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Printronix P5000 - Page 163

Printronix P5000
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Loading Through the Network Interface Card (NIC)
163
8. Check the pin for a short to ground, which is indicated by a meter reading
of continuity (that is, a low resistance reading of less than 1 Ohm).
9. If you find a short to ground, replace the cable. If no short is detected,
repeat steps 7 and 8 for the rest of the pins on the same end of the cable.
If no shorts to ground are detected for any of the pins, proceed to the next
section, which checks for pin-to-pin shorts.
Check for pin-to-pin shorts:
10. Disconnect the common (usually black) meter lead from the ground point.
11. Check for shorts within the cable by touching the common meter lead to
pin 1 at one end of the cable and touching the positive (usually red) meter
lead to pin 2 at the same end of the cable.
12. Check for a pin-to-pin short, which is indicated by a meter reading of
continuity (that is, a low resistance of less than 1 Ohm). For a properly
functioning cable that has no pin-to-pin short, you will see the “open
circuit” meter reading you recorded in step 4.
13. If you find a short, replace the cable. If no short is detected, check for pin-
to-pin shorts on all the remaining pairs on the same end of the cable. If no
shorts are detected for any of the remaining pairs, return to the procedure
that referred you to this diagnostic procedure.

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