Huawei OptiX OSN 9560 Quick Installation Manual page 33

10
Installing Clock Cables
a
Installing clock cables - OptiX OSN 9560 and OptiX OSN 3500
NOTE
The 75-ohm and 120-ohm clock cables are available.
The OptiX OSN 9560 supports input and output of 75-ohm and 120-ohm clock signals. However, 75/120-ohm clock transit cables
are required if an OptiX OSN 9560 traces clock signals from a 75-ohm port because STI boards on the OptiX OSN 9560 provide
only 120-ohm RJ45 connectors.
The OptiX OSN 9560 uses 120-ohm clock cables by default. If an OptiX OSN 9560 connects to an OptiX OSN 3500, use 120-ohm
clock cables to connect them. Clock cables between subracks can be made using network cables on site.
The 120-ohm clock cables must be shielded wires without cable sheaths.
75/120-ohm clock transit
cable (one channel)
A
B
Outputting
clock signals
75/120-ohm clock transit
cable (two channels)
75-ohm clock output 1
75-ohm clock output 2
75-ohm clock input 1
75-ohm clock input 2
120-ohm clock input/output 1
120-ohm clock input/output 2
A
Connected to
the CLK1 port
Connected to
the CLK2 port
Clock Cable Connections
X1 X2
1 4
2 5
3 7
6 8
4 1
5 2
7 3
8 6
30
120-ohm clock cable
B
Outputting
clock signals
Color Relationship
White/Blue A twisted pair
Blue
White/Orange A twisted pair
White/Green
Green A twisted pair
Orange
White/Brown A twisted pair
Brown