Huawei AR500 Series Hardware Description page 738

Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
Cable Type
Adapter cable plus straight-
through cable
Adapter cable plus
asynchronous serial cable
Self-made cable
Straight-Through Cable: Connecting to a Financial Dumb Terminal
Figure 6-65
Figure 6-65 Structure of a straight-through cable
Table 6-105
Issue 10 (2019-03-06)
shows the structure of a straight-through cable.
Main Label
X1
lists the pin assignments of a straight-through cable.
Copyright © Huawei Technologies Co., Ltd.
Application Scenario
Telecommunications
terminal
Common network
device
Serial port server
8
1
Description
An adapter cable has an RJ45
plug at one end and an RJ45
socket at the other end. The
cable converts the wire
sequence on a dumb terminal
to the standard wire sequence
for telecommunications
devices.
The RJ45 socket of the
adapter cable is connected to a
straight-through cable, which
is connected to a terminal.
An asynchronous serial cable
has an RJ45 connector at one
end and a DB25/DB9
connector at the other end.
The wire sequences of twisted
pairs in the two RJ45
connectors are determined by
the type of signals transmitted
from the connected terminal.
X2
6 Cables
727