Huawei OptiX RTN 980 Quick Installation Manual page 28

11
Installing External Clock Cables
a
Assembling External Clock Cables Based on the Pin Assignment
Pin
1
2
3
6
4
5
7
8
b
Installing External Clock/Time Cables for the RTN 980
The CSHN, CSHNA board provides the CLK/TOD1 port.
CLK/TOD1
Color
Relationship
White/Orange
Twisted pair
Orange
White/Green
Twisted pair
Green
Blue
Twisted pair
White/Blue
White/Brown
Twisted pair
Brown
CLK/TOD1
Negative receive end of the external clock
Positive receive end of the external clock
External time 1_N
External time 1_P
Negative transmit end of the external clock
Positive transmit end of the external clock
External time 2_N
External time 2_P
CSHN board
25