Huawei AR500 Series Hardware Description page 103

Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
The DI/DO interfaces are used to detect voltage level signals or deliver instructions.
3-15
Table 3-15 DI/DO interface attributes
Attribute
Connector type
Signal type
Cable type
RS485/RS422 interface
The RS485/RS422 interface can be connected to a meter or monitoring terminal.
lists RS485/RS422 interface attributes.
Table 3-16 RS485/RS422 interface attributes
Attribute
Connector type
Standards compliance
Working mode
Communication distance
Baud rate
Cable type
Heat Dissipation
The AR502EG-L router has no fans and uses natural heat dissipation.
Technical Specifications
Table 3-17
Table 3-17 AR502EG-L technical specifications
Item
System parameters
Processor
Issue 10 (2019-03-06)
lists DI/DO interface attributes.
lists technical specifications of the AR502EG-L router.
Copyright © Huawei Technologies Co., Ltd.
Description
RJ45
LVTTL voltage level, digital input/output
6.2.7 RJ-45 Connector (DI/DO)
Description
5-pin Phoenix terminal block
RS485/RS422
l RS485: half-duplex
l RS422: full-duplex
1 km (> 19 kbit/s)
1200/2400/4800/9600/115200
6.2.8 5-Pin Phoenix Connector (RS485/
RS422)
Specification
Dual-core, 700 MHz
3 Chassis
Table
Table 3-16
92