Fault Finding
134
3. Check the cable resistance between pins 1 & 3 at the RJ45.
Check against column 3 in
4. Check the cable resistance between pins 4 & 7 at the RJ45.
Check against column 4 in
5. Ensure that there is greater than 100K ohms between pins 1 & 8 for all cable lengths.
6. Ensure that there is greater than 100K ohms between pin 1 and ODU ground for all cable
lengths.
7. Ensure that there is greater than 100K ohms between pin 8 and ODU ground for all cable
lengths
10.2
Radio
10.2.1
No Activity
If communication over the radio link has been lost and the unit at the other end of the link can be
managed on its local network, the following procedure should be adopted: If there is no wireless
activity then the configuration should be checked. It is essential that the following items are
correct:
•
Check for Alarm conditions on Home page
•
Check that the software at each end of the link is the same version
•
Check that the Target Mac address has not been misconfigured at each end of the link
•
Check Range
•
Check Tx Power
•
Check License keys to ensure that both units are the same product variant
•
Check Master/Slave status for each unit and ensure that one unit is Master and the other unit
is slave
•
Check that the link has not been further obscured or the ODU misaligned
•
Check the DFS page at each end of the link and establish that there is a quiet wireless channel
to use If there are no faults found in the configuration and there is absolutely no wireless signal
retry the installation procedure. If this doesn’t work then the ODU may be faulty.
10.2.2
Some Activity
If there is some activity but the link is unreliable or doesn’t achieve the data rates required then:
•
Check that the interference has not increased using the i-DFS measurements
•
If a quieter channel is available check that it is not barred
•
Check that the path loss is low enough for the communication rates required
•
Check that the ODU has not become misaligned
Содержание MOTOWI 4
Страница 1: ...PTP 500 Series User Guide phn 1115 000v001 ...
Страница 74: ...Web Page Reference 74 Figure 37 Save Configuration File Screen ...
Страница 100: ...Web Page Reference 100 Figure 59 Spectrum Management as seen from the Master ...
Страница 108: ...Web Page Reference 108 Figure 66 Spectrum Management Master Screen With Operational Restrictions ...
Страница 112: ...Web Page Reference 112 Figure 68 Remote Management ...
Страница 165: ...Data Rate Calculations 165 Figure 112 QPSK 0 50 Single Payload Figure 113 QPSK 0 75 Single Payload ...
Страница 166: ...Data Rate Calculations 166 Figure 114 16 QAM 0 50 Single Payload Figure 115 16 QAM 0 75 Single Payload ...
Страница 167: ...Data Rate Calculations 167 Figure 116 64 QAM 0 67 Single Payload Figure 117 64 QAM 0 83 Single Payload ...
Страница 168: ...Data Rate Calculations 168 Figure 118 256 QAM 0 75 Single Payload Figure 119 QPSK 0 50 Dual Payload ...
Страница 169: ...Data Rate Calculations 169 Figure 120 QPSK 0 75 Dual Payload Figure 121 16 QAM 0 50 Dual Payload ...
Страница 170: ...Data Rate Calculations 170 Figure 122 16 QAM 0 75 Dual Payload Figure 123 64 QAM 0 67 Dual Payload ...
Страница 171: ...Data Rate Calculations 171 Figure 124 64 QAM 0 83 Dual Payload Figure 125 256 QAM 0 75 Dual Payload ...
Страница 197: ...Glossary 197 UTP Unshielded Twisted Pair VLAN Virtual Local Area Network ...
