Huawei PTN Series - Page 13

10
7
Color PIN Pin of the CLK1/TOD1 and CLK2/TOD2 Interfaces on the CXP Board
120-hm external clock External time (1PPS + time
information)
External time (DCLS)
White/orange 1 Rx negative of external clock Not defined Not defined
Orange 2 Rx positive of external clock
White/green 3 Not defined RS422 input/output negative of
1PPS signals
RS422 input/output negative of DCLS
time signals
Green 4 Tx negative of external clock Grounding Grounding
Blue 5 Tx positive of external clock
White/blue 6 Not defined RS422 input/output positive of 1PPS
signals
RS422 input/output positive of DCLS time
signals
White/brown 7 RS422 input/output negative of time
information
Not defined
Brown 8 RS422 input/output positive of time
information
Installing the NM Cable
8
Installing the External Clock/Time Cable
a. Making the external clock and time cables according to the pin definition table
b. Installing the external clock and time cables
CLK1/TOD1
CLK2/TOD2
NM
ETH/OAM