9 Two GE optical interfaces
NOTE
The two interfaces GE0 and GE1 can be used
as WAN interfaces.
10 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
11 Ground point
NOTE
The router must be reliably grounded using a
ground cable to protect the router from
lightning and electromagnetic interference.
- -
Indicator Description
Figure 3-81 shows indicators on the AR531-2C-H.
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
3 Chassis
Issue 10 (2019-03-06) Copyright © Huawei Technologies Co., Ltd. 437
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