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 3-356 lists USB interface attributes.
Table 3-356 USB interface attributes
Attribute Description
Connector type TYPE-A
Standards compliance USB 2.0
Working mode Host
RS485 Interface
RS485 interfaces are used for data collection. Table 3-357 lists the RS485 interface attributes.
Table 3-357 RS485 interface attributes
Attribute
Description
Connector type 8-pin connector (leftmost 4 pins for RS485
interfaces)
Standards compliance RS485
Working mode Half-duplex
Rate 1200-115200 bit/s
Cable type 6.2.11 8-Pin Phoenix Connector
(RS485/DI)
DI Interface
DI interfaces are used to observe remote communication input and voltage level signals.
Table 3-358 lists DI interface attributes.
Table 3-358 DI interface attributes
Attribute
Description
Connector type 8-pin connector (rightmost 4 pins for DI
interfaces)
Signal type Passive DI signals, Boolean value (short
circuit and open circuit)
Cable type 6.2.11 8-Pin Phoenix Connector
(RS485/DI)
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
3 Chassis
Issue 10 (2019-03-06) Copyright © Huawei Technologies Co., Ltd. 458
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