The power cable length must be shorter than or equal to 3 m. Table 5-1 lists the required
specifications of the power cables.
Table 5-1 Specifications of 2-pin DC cables
Conductor Type Minimum Conductor
Cross-Sectional Area
Maximum Conductor
Cross-Sectional Area
Solid
0.5 mm
2
or 20 AWG 1.5 mm
2
or 16 AWG
Twisted
0.5 mm
2
or 20 AWG 1.5 mm
2
or 16 AWG
Tools and Accessories
l Wire stripper
l Flat-head screwdriver
l ESD wrist strap
l 2-pin terminal blocks (two for each power input)
l AC/DC input terminal block
l Power cables (five, separately purchased)
Procedure
Step 1 Verify that the router is reliably grounded.
Step 2 Wear an ESD wrist strap. Ensure that the ESD wrist strap is grounded and in a close contact
with your wrist.
Step 3 Assemble the 2-pin DC power cables.
NOTE
l Two cables are connected to the 2-pin terminal block in the same way. The following procedure uses
one cable as an example.
l Insert the two cables into the 2-pin terminal block, with the RTN (+) cable in the left hole and the
NEG (-) cable in the right hole.
1. Use a wire stripper to peel about 7 mm length of insulation coating off one end of the
cable.
NOTICE
Do not cut the metal conductor of the cable when peeling insulation coating.
2. Insert the bare wire into a wire hole.
Huawei AR500&AR530&AR550 series Industrial Switch
Routers
Hardware Installation and Maintenance Guide
5 Installing an AR550 Series Industrial Switching Router
Issue 05 (2015-12-01) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
111
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