2.5GE optical interface
A 2.5GE optical interface supports GE/2.5GE auto-sensing and is used for data transmission
and receiving at over 1 Gbit/s. Table 3-401 lists the attributes of a 2.5GE optical interface.
Table 3-401 2.5GE optical interface attributes
Attribute Description
Connector type SFP
Standards compliance IEEE802.3z
Cable type Optical fiber (inserted in an optical module)
and GE Optical Module
DI/DO interface
A DI interface receives alarm input (9.6-60 V), and a DO interface sends output signals to
instruct an external device to perform required actions. Table 3-402 lists the DI/DO interface
attributes.
Table 3-402 DI/DO interface attributes
Attribute
Description
Connector type 5-pin Phoenix terminal block
Signal type
l DI: 9.6-60 V DC power input
l DO: Boolean value (short circuit and
open circuit)
Heat Dissipation
The AR550C-4GE router has no fans and uses natural heat dissipation.
Technical Specifications
Table 3-403 lists technical specifications of the AR550C-4GE router.
Table 3-403 AR550C-4GE technical specifications
Item
Specification
System parameters
Processor Dual-core, 700 MHz
Memory 256 MB
Flash 512 MB
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
3 Chassis
Issue 10 (2019-03-06) Copyright © Huawei Technologies Co., Ltd. 501
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