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4.4.1 Introduction
The AUX interface cable is used to connect the AUX interface on the NE40E to a modem to
remotely transmit the configuration data of the NE40E.
The AUX interface cable is an 8-core shielded cable. One end of the cable is an RJ45 connector
connected to the AUX interface on the MPU. The other end has DB9 and DB25 connectors,
either of which is connected to the serial interface on a computer.
4.4.2 Structure
As shown in
the structure of the AUX interface cable is the same as that of the console
interface cable.
shows the pin assignment on the AUX interface cable.
Figure 4-2
AUX interface cable
1. Direction A 2. DB25 female connector 3. Label
4. RJ45 connector
5. Direction B 6. Direction C
7. DB9 female connector W1 and W2 communication cable
Table 4-7
Pin assignment on the AUX interface cable
RJ-45
Direction
DB-25
DB-9
Signal
1
->
4
7
RTS
2
->
20
4
DTR
3
->
2
3
TXD
4
—
8
1
GND
5
—
7
5
GND
6
<-
3
2
RXD
7
<-
6
6
DSR
8
<-
5
8
CTS
HUAWEI NE40E-X1 & NE40E-X2 Universal Service
Router
Hardware Description
4 Cables
Issue 02 (2011-09-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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