The USB interface supports USB 2.0 devices and provides upload and download speeds of
480 Mbit/s. You can use the USB interface to upload or download configuration and
application files to the flash memory. Table 3-435 lists USB interface attributes.
Table 3-435 USB interface attributes
Attribute Description
Connector type TYPE-A
Standards compliance USB 2.0
Working mode Host
GE combo interface
A GE combo interface consists of an optical Ethernet interface and an electrical Ethernet
interface on the panel. The two interfaces have only one internal forwarding interface. The
electrical and optical interfaces are multiplexed, and only one of them can work at a time.
When one of the Ethernet interfaces is working, the other interface is shut down.
l The GE electrical interface (10/100/1000 Mbit/s auto-sensing) transmits and receives
services at 10 Mbit/s, 100 Mbit/s, or 1000 Mbit/s.
l The GE optical interface (100/1000 Mbit/s auto-sensing) transmits and receives services
at 100 Mbit/s or 1000 Mbit/s.
DO interface
The DO interface provides output signals to instruct the connected device to perform required
actions. Table 3-436 describes DO interface attributes.
Table 3-436 DO interface attributes
Attribute
Description
Connector type 3-pin Phoenix terminal block
Signal type Passive DO, Boolean value (short circuit
and open circuit)
Cable type 6.2.2 3-Pin Phoenix Connector (DO)
ETH interface
The ETH interface is used to log in to the router to perform configuration and management.
Table 3-437 lists ETH interface attributes.
Table 3-437 ETH interface attributes
Attribute
Description
Connector type RJ45
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
3 Chassis
Issue 10 (2019-03-06) Copyright © Huawei Technologies Co., Ltd. 531
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