5 Cover open sensor 6 Two RS485 interfaces and two DI
interfaces
NOTE
l RS485 interfaces: connected to meters or
other devices with RS485 interfaces
l DI interfaces: connected to digital input
devices
7 RST
NOTICE
This button is used to reset the router.
l To restore the factory settings, hold down
the button for 10 seconds.
l To reset the system, press the button.
Resetting the router will interrupt services.
Exercise caution when deciding to press this
button.
8 AC power socket
NOTE
l It is connected to an AC power supply
device using a 4-pin AC power cable.
l It can also be used as a PLC interface.
9 USB interface 10 Two GE optical interfaces
NOTE
The two interfaces GE0 and GE1 can be used
as WAN interfaces.
11 Ground point
NOTE
The router must be reliably grounded using a
ground cable to protect the router from
lightning and electromagnetic interference.
- -
4.3.4 AR531G-U-D-H
Appearance and Structure
Figure 4-22 shows the panel of the AR531G-U-D-H.
Huawei AR500&AR510&AR530&AR550&AR2500
Series Industrial Switch Routers
Product Description
4 Appearance
Issue 02 (2016-11-25) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
73