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