4-26 Keysight N5244A/45A Service Guide
Troubleshooting
Rear Panel Troubleshooting
4-
1.
Strip away a few inches of the outside jacket insulation from the middle of
a standard LAN cable that has an RJ-45 connector on each end.
2.
Cut the wires going to pins 1, 2, 3, and 6. Strip away a small amount of
insulation from each of the eight cut ends.
a.
Connect the wire from pin 1 on one end of the cable to the wire from
pin 3 on the other end of the cable.
b.
Connect the wire from pin 3 on one end of the cable to the wire from
pin 1 on the other end of the cable.
c.
Connect the wire from pin 2 on one end of the cable to the wire from
pin 6 on the
other end of the cable.
d.
Connect the wire from pin 6 on one end of the cable to the wire from
pin 2 on the
other end of the cable.
3.
Insulate all exposed wires so that they cannot short together.
4.
Label this as a crossover cable so that it cannot be confused with a
standard cable.
Pins 1, 2, 3, and 6 of the connectors must be located to determine which
wires to cut in the following steps. Most, but not all, LAN cables use the
. If your cable does not use this color
scheme, you will have to determine the locations of the appropriate wires
before proceeding with this procedure.
Table 4-3
LAN Pin Definitions and Wire Color Codes
Pin Number
Color
Pin Number
Color
1 (tr)
White/orange
5
White/blue
2 (transmit -)
Orange
6 (receive -)
Green
3 (r)
White/green
7
White/brown
4
Blue
8
Brown
Содержание PNA-X N5244A
Страница 10: ...8 Keysight N5244A 45A Service Guide Contents ...
Страница 90: ...3 62 Keysight N5244A 45A Service Guide Tests and Adjustments Adjustments 3 ...
Страница 146: ...4 56 Keysight N5244A 45A Service Guide Troubleshooting Instrument Block Diagrams Sheet 4 4 ...
Страница 155: ...Keysight N5244A 45A Service Guide 5 9 Theory of Operation Synthesized Source Group Operation Figure 5 3 Source Group ...
Страница 174: ...5 28 Keysight N5244A 45A Service Guide Theory of Operation Receiver Group Operation 5 Figure 5 6 4 Port Receiver Group ...
Страница 175: ...Keysight N5244A 45A Service Guide 5 29 Theory of Operation Receiver Group Operation Figure 5 7 2 Port Receiver Group ...
Страница 188: ...5 42 Keysight N5244A 45A Service Guide Theory of Operation Noise Measurement Group Operation Option 029 5 ...
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Страница 472: ...8 18 Keysight N5244A 45A Service Guide General Purpose Maintenance Procedures Correction Constants 8 ...
Страница 504: ...32 Keysight N5244A 45A Service Guide Index ...
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