Motorola PTP 600 System User Manual page 174

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)
0
10
20
30
40
50
60
70
80
90
100
Table 18 - 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
Resistance
between pins
1 & 2, 3 & 6 , 4 & 5
and pins 7 & 8
(ohms)
0.8
2.5
4.2
5.9
7.6
9.3
11.0
12.7
14.4
16.1
17.8
172
Resistance Resistance
between pins
between pins
1 & 3
(ohms)
1.0
2.7
4.4
6.1
7.8
9.5
11.2
12.9
14.6
16.3
18.0
4 & 7
(ohms)
1.6
3.3
5.0
6.7
8.4
10.1
11.8
13.5
15.2
16.9
18.6