Huawei AR550-8FE-D-H - Page 453

Attribute Description
Standards compliance USB 2.0
Working mode Host
RS485 interface
RS485 interfaces are used for data collection. Table 3-339 lists the RS485 interface attributes.
Table 3-339 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 3-340 lists DI interface attributes.
Table 3-340 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)
Heat Dissipation
The AR531-2C-H router has no fans and uses natural heat dissipation.
Technical Specifications
Table 3-341 lists technical specifications of the AR531-2C-H router.
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
3 Chassis
Issue 10 (2019-03-06) Copyright © Huawei Technologies Co., Ltd. 442