Cable Connection
14
4.7 Power Terminal Block
There is a power terminal block on the rear panel of the switch. You need to connect the
power cable to the terminal block to provide power for the switch.
The device supports single (PWR1) and redundant (PWR1 and PWR2) power supply with a
5-pin 5.08mm-spacing plug-in terminal block. When the redundant power supply is used and
one power supply is faulty, the switch can continue operating properly, thereby improving
network reliability.
Note:
0.75mm
2
<Cross-sectional area of the power cable<2.5mm
2
; Grounding resistance: <5
5-pin 5.08mm-spacing plug-in terminal block
Figure 14 5-Pin 5.08mm-Spacing Plug-in Terminal Block
Table 9 Pin Definitions of 5-Pin 5.08mm-Spacing Plug-in Terminal Block
No.
Signal
DC Definition
AC Definition
1
+/L
PWR1: +
PWR1: L
2
-/N
PWR1: -
PWR1: N
3
PGND
PGND
4
-/N
PWR2: -
PWR2: N
5
+/L
PWR2: +
PWR2: L
Caution:
For single power supply, only pins 1, 2, and 3 (PWR1) of the terminal block can be connected. Do
not use pins 4 and 5.
Wiring and mounting
Step 1: Ground the switch properly according to section 4.6.
Step 2: Remove the power terminal block from the switch.
