Testing Your Installation; Pre-Power Testing; Figure 82 - Simplified Circuit Diagram (Only One Transtector Shown For Clarity) - Motorola PTP 400 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:
1 Orange/White
Ethernet
3 Green/White
Ethernet
LED/Reset
signalling
0V Floating
7 Brown/White
36V-55V
PIDU Plus

Figure 82 - Simplified Circuit Diagram (Only One Transtector Shown For Clarity)

11.3.1 Pre-Power Testing

Before plugging in the RJ45 to the PIDU Plus, check the following impedances at the RJ45:
1. Check the cable resistance between pins 7 and 4 at the RJ45. Check against column 2 in
the Table 18.
2. Check the resistance between pins 8 and 5 at the RJ45. Check against column 3 in the
Table 18.
3. Check the resistance between pins 7 and 8 at the RJ45. The value should be greater
than 1000 ohms.
CON3
1
2 Orange
3
6 Green
CON1
4
4 Blue
5 Blue/White
5
7
8 Brown
T-568B
Cable Screen
CON4
1
2
2
3
6 6
CON2
4
5
7
8
8
T-568B
Surge Arrestor
ALPU-ORT
Tower
151
1 Orange/White
Ethernet
2 Orange
3 Green/White
Ethernet
6 Green
4 Blue
LED/Reset
signalling
5 Blue/White
0V Floating
7 Brown/White
8 Brown
36V-55V
Chassis
ODU