Huawei ATN 950B - Page 105

Figure 9-8 Structure of the RJ45 Connector
PIN#1
PIN#8
Pin Assignment
The external clock cables must be made on the equipment installation site. When the CLK and
TOD interfaces are used as external clock interfaces, the pin assignment of the RJ45 connector
is as listed in Table 9-5; when the CLK and TOD interfaces are used as external time interfaces,
the pin assignment of the RJ45 connector is as listed in Table 9-6.
Table 9-5 Pin assignment of the RJ45 connector (external clock mode)
Connector
Pin
Color Relation Description
1 White-orange Twisted pair Receive negative of CLK
2 Orange Receive positive of CLK
3 White-green Twisted pair Unspecified
6 Green Unspecified
4 Blue Twisted pair Transmit negative of CLK
5 White-blue Transmit positive of CLK
7 White- brown Twisted pair Unspecified
8 Brown Unspecified
Table 9-6 Pin assignment of the RJ45 connector (external time mode)
Connecto
r Pin
Color Relation Description
1PPS + Time
Information Mode
DCLS Mode
1 White-orange Twisted pair Unspecified Unspecified
2 Orange Unspecified Unspecified
3 White-green Twisted pair Negative of 1PPS
signals
Negative of DCLS
signals
ATN 950B Multi-service Access Equipment
Hardware Description 9 Cables
Issue 03 (2012-07-23) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
96