Testing Your Installation; Pre-Power Testing; Figure 99 - Simplified Circuit Diagram (Only One Transtector Shown For Clarity) - Motorola PTP 600 Series User Manual

11.3 Testing Your Installation

If you have followed the above instructions you will have wired your system to the following
diagram:
0V
1 Orange/White
Ethernet
3 Green/White
Ethernet
Ethernet
7 Brown/White
Ethernet
+55V and
LED/Reset
Signalling
PIDU Plus

Figure 99 - Simplified Circuit Diagram (Only One Transtector Shown For Clarity)

11.3.1 Pre-Power Testing

Before plugging in the RJ45 to the PIDU check the following impedances at the RJ45;
1. Check the cable resistance between pins 1 & 2, 3 & 6, 4 & 5 and 7 & 8 at the RJ45.
Check against column 2 in Table 17.
2. Check the cable resistance between pins 1 & 3 at the RJ45. Check against column 3 in
Table 17.
3. Check the cable resistance between pins 4 & 7 at the RJ45. Check against column 4 in
Table 17.
4. Ensure that there is greater than 100K ohms between pins 1 & 8 for all cable lengths.
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
CON3
1
2 Orange
2
3
6 Green 6
CON1
4 Blue 4
5 Blue/White 5
7
8 Brown
8
T-568B
Cable Screen
CON4
1
2
3
6
CON2
4
5
7
8
T-568B
Surge Arrestor
ALPU-ORT
Tower
169
0V
1 Orange/White
Ethernet
2 Orange
3 Green/White
Ethernet
6 Green
4 Blue
Ethernet
5 Blue/White
7 Brown/White
Ethernet
8 Brown
+55V and
LED/Reset
Chassis
Signalling
ODU