Motorola PTP 600 Series ユーザーズマニュアル

ページ / 246
 
 
156
5.  Ensure that there is greater than 100K ohms between pin 1 and ODU ground for all cable 
lengths. 
6.  Ensure that there is greater than 100K ohms between pin 8 and ODU ground for all cable 
lengths 
 
CAT-5 Length 
(Meters) 
Resistance 
between pins 
1 & 2, 3 & 6 , 4 & 5 
and pins 7 & 8 
 (ohms) 
Resistance 
between pins 
1 & 3 
 (ohms) 
Resistance 
between pins 
4 & 7 
 (ohms) 
0  0.8 1.0 1.6 
10  2.5 2.7 3.3 
20  4.2 4.4 5.0 
30  5.9 6.1 6.7 
40  7.6 7.8 8.4 
50 9.3 9.5 10.1 
60  11.0 11.2 11.8 
70  12.7 12.9 13.5 
80  14.4 14.6 15.2 
90  16.1 16.3 16.9 
100  17.8 18.0 18.6 
Table 14 - Resistance Table Referenced To The RJ45 at the PIDU+ 
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 mis-configured at each end of the link. 
• Check 
Range 
•  Check Tx Power