Huawei AR550-8FE-D-H - Page 396

Do not remove the USB flash drive during a USB-based deployment. Otherwise, the system
will restart.
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 3-366 lists USB interface attributes.
Table 3-366 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 3-367 lists the RS485 interface attributes.
Table 3-367 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 3-368 lists DI interface attributes.
Table 3-368 DI interface attributes
Attribute
Description
Connector type 8-pin connector (rightmost 4 pins for DI
interfaces)
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
3 Chassis
Issue 10 (2019-03-06) Copyright © Huawei Technologies Co., Ltd. 467