Huawei OptiX RTN 980 Quick Installation Manual page 29

12
Installing Asynchronous and Synchronous Data Cables
a
Assembling Asynchronous and Synchronous Data Cables Based on the
Pin Assignment
Pin
White/Orange
1
2
White/Green
3
6
4
White/Blue
5
White/Brown
7
8
b
Installing Synchronous and Asynchronous Data Cables for the RTN 980
The AUX board provides the F1/S1 port.
Color Relationship
Twisted pair
Orange
Twisted pair
Green
Blue
Twisted pair
Twisted pair
Brown
F1/S1
Pin Assignment
Transmits asynchronous data signals.
Grounding
Receives asynchronous data signals.
Grounding
Transmits synchronous data signals (TIP).
Transmits synchronous data signals (RING).
Receives synchronous data signals (TIP).
Receives synchronous data signals (RING).
AUX board
26
Function