Huawei AR500 Series Hardware Description page 469

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