Technical Specifications; Clock Cable; Introduction; Structure - Huawei NE40E-X1 Hardware Description

HUAWEI NE40E-X1 & NE40E-X2 Universal Service
Router
Hardware Description

4.4.3 Technical Specifications

Table 4-8
Table 4-8 Technical specifications of the AUX interface cable
Item
Connector X1
Connector X2
Connector X3
Cable type
Number of cores 8
Fireproof class
Available
length

4.5 Clock Cable

This section describes the structure and technical specifications of the clock cable.

4.5.1 Introduction

Clock cable for the 1588v2-supporting MPU
A clock cable is used to connect the clock interface on the NE40E to the clock interface on
another device. In this manner, the NE40E can receive 2-Mbit/s clock signals, 2-MHz clock
signals, 1 PPS +ASCII time signals, or two channels of DCLS time signals from the upstream
device and provides 2-Mbit/s clock signals, 2-MHz clock signals, 1 PPS +ASCII time signals,
or two channels of DCLS time signals to the downstream device.
One end of the clock cable is an RJ45 connector connected to the clock interface on the MPU
and the other end is connected to the clock interface on an external device. The connector on
the other end needs to be prepared as required on site.
An RJ45 connector is used together with the 120-ohm trunk cable.
NOTE

4.5.2 Structure

Issue 02 (2011-09-10)
lists the technical specifications of the AUX interface cable.
Description
Network interface connector-crystal connector-8PIN-8bit-shielded plug
Cable connector-D type-25PIN-female
Cable connector-D type-9PIN-female
Symmetrical twisted cable-120-ohm-SEYVPV-0.5mm-24AWG-8core-
PANTONE 430U
Symmetrical twisted cable-100-ohm-SEYVP-0.48mm-26AWG-8core-
black
CM
15 m ( 49.21 ft ) for the 120-ohm cable
3 m ( 9.84 ft ) for the 100-ohm cable
The wire sequence of a trunk cable used as a clock cable differs from the wire sequence of an ordinary
twisted cable.
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