H3C S7502 Ethernet Switch Installation Manual

Installation Manual
H3C S7502 Ethernet Switch Chapter 4 Hardware Installation
4-7
PGNDRTN -48V
-48V 60V;15A
(1) (2)
(3)
(4)
(1) Power switch (2) Power LED
(3) Handle of power module (4) DC power socket
RTN: -48 V working ground -48V: -48 V DC power
PGND: protection ground (You do not need to connect it because it is connected to the
chassis from inside the power module).
Figure 4-7 S7502 DC power module
Follow these steps to connect the DC power cable:
Step 1: Install the DC power plug components.
Dustproof cov er
Cable tie
Connector
Screw 4
Cable 2
Screw 1 Screw 2
Screw 3
Cable 1
Dustproof cov er
Cable tie
Connector
Screw 4
Cable 2
Screw 1 Screw 2
Screw 3
Cable 1
Figure 4-8 DC power plug
As shown in
Figure 4-8, first insert two cables into the appropriate holes through
dust-proof shield, and then fix the cables separately by using screws 1 and 2. Make
sure that the positive and negative ends of the cable are inserted appropriately in
accordance with the silkscreen print on the holes.
Fix the dust-proof shield by screws 3 and 4 by using a small flathead screwdriver, see
Figure 4-8.
Enlace the two cables to the polarizing key at the back of the dust-proof shield using the
cable tie, as shown in
Figure 4-8.
Step 2: After installing connector component, directly insert the component into DC
socket on the cabinet (Note that the component cannot be inserted in the wrong