Figure 6-16
Structure of an RS485 and DI cable
DI1
DI1
DI0
DI0
RS485-1(B)
RS485-1(A)
RS485-0(A)
RS485-0(B)
Specifications
lists required specifications of an RS485 and DI cable. To meet current (lower
than 2 A) and ambient temperature requirements, you are advised to use power wires with 1.0
mm
2
conductors.
Table 6-31
Specifications of an RS485 and DI cable
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
Pin Assignments
None
Connection
An RS485 and DI cable is connected as follows:
l
The 8-pin phoenix connector is connected to RS485 and DI interfaces on the local
device.
l
At the other end, the RS485 wires are connected to electricity meters or other devices
that have RS485 interfaces, and the DI wires are connected to digital input devices.
Ordering Information
provides the 8-pin phoenix connector (RS485/DI) ordering information.
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
6 Cables
Issue 10 (2019-03-06)
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