Nortel Networks DCT1900 User Manual
Page 276
Technical Product Manual - DCT1900
Installation Instructions, Modular Cabinet – CPU Cabling
20-12
Install-DCT1900/R8/mw
© 2000-2005
Fig. 20-10 CPU2 to CPU1, CPU2 Master, CPU1 Slave, Multiple REs
CPU 2
Master
Output
CPU
1
Slave
3
CPU 1
Slave 2
CPU 1
Slave 1
66 Block
1
2
4
5
7
8
RJ-45
CAT 5
Cable
CAT 5
Cable
CAT 5
Cable
CAT 5
Cable
Using Cat 5 cable, connect pins 1 & 2 (Blue pair),
4 & 5 (Orange pair), and 7 & 8 (Green pair)
of the CPU 2 to the connecting block.
Using CPU 1 Sync Replacement cable, AWS1154 cut one end off and
connect pins A3 and C5 of the CPU 1
to the connecting block (White/Blue and Blue/White).
Cross-connect CPU 2 to CPU 1 at the block. Measure the delay,
and enter the value in nanoseconds into each slave’s configuration.
A B C
1
2
3
4
5
6
7
White/Blue
Blue/White
White/Orange
Orange/White
White/Green
Green/White
White/Blue
White/Blue
White/Blue
Blue/White
Blue/White
Blue/White
A B C
1
2
3
4
5
6
7
A B C
1
2
3
4
5
6
7
CPU 2
Master
Output
CPU
1
Slave
3
CPU 1
Slave 2
CPU 1
Slave 1
66 Block
1
2
4
5
7
8
RJ-45
CAT 5
Cable
CAT 5
Cable
CAT 5
Cable
CAT 5
Cable
Using Cat 5 cable, connect pins 1 & 2 (Blue pair),
4 & 5 (Orange pair), and 7 & 8 (Green pair)
of the CPU 2 to the connecting block.
Using CPU 1 Sync Replacement cable, AWS1154 cut one end off and
connect pins A3 and C5 of the CPU 1
to the connecting block (White/Blue and Blue/White).
Cross-connect CPU 2 to CPU 1 at the block. Measure the delay,
and enter the value in nanoseconds into each slave’s configuration.
A B C
1
2
3
4
5
6
7
White/Blue
Blue/White
White/Orange
Orange/White
White/Green
Green/White
White/Blue
White/Blue
White/Blue
Blue/White
Blue/White
Blue/White
A B C
1
2
3
4
5
6
7
A B C
1
2
3
4
5
6
7
A B C
1
2
3
4
5
6
7