H3C S7506 User manual

H3C S7503-S7506-S7506R
Ethernet Switches
Power Distribution Box
Installation Guide
Hangzhou H3C Technologies Co., Ltd.
http://www.h3c.com
Manual Version: T2-08050R-20070521-C-1.01

Copyright © 2006-2007, Hangzhou H3C Technologies Co.,
Ltd.
All Rights Reserved
No part of this manual may be reproduced or transmitted in any form
or by any means without prior written consent of Hangzhou H3C
Technologies Co., Ltd.
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N-Bus, TiGem, InnoVision and HUASAN are trademarks of Hangzhou
H3C Technologies Co., Ltd.
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property of their respective owners.
Notice
The information in this document is subject to change without notice.
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This product has been designed to comply with the requirements
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Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
i
Table of Contents
Chapter 1 H3C S7503-S7506-S7506R Ethernet Switches Power
Distribution Box Installation Guide .............................................1-1
1.1 Appearance of AC Power Distribution Box........................1-1
1.1.1 Dual-Input AC Power Distribution Box for S7503 .......1-1
1.1.2 Single-Input AC Power Distribution Box for
S7506/S7506R.................................................................1-2
1.1.3 Dual-Input AC Power Distribution Box for
S7506/S7506R.................................................................1-3
1.2 Appearance of DC Power Distribution Box........................1-4
1.2.1 DC Power Distribution Box for S7503.....................1-4
1.2.2 DC Power Distribution Box for S7506/S7506R.......1-5
1.3 Installing a Power Distribution Box ....................................1-7
1.4 Removing a Power Distribution Box..................................1-9
1.5 Installing a DC Power Cable............................................1-11
1.6 Removing a DC Power Cable..........................................1-12

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-1
Chapter 1 H3C S7503-S7506-S7506R
Ethernet Switches Power Distribution
Box Installation Guide
1.1 Appearance of AC Power Distribution Box
1.1.1 Dual-Input AC Power Distribution Box for S7503
Figure 1-1 Appearance of dual-input AC power distribution box
for S7503

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-2
(
)
2
(3)(4)
(1)
(1)2
()
)
(4
(
)
2
(3)(4)
(1)
(1) (1)2
()
)
(4
(1) Power switch (2) Cable clamp
(3) Grounding screw (4) Power receptacle
Figure 1-2 Front panel of dual-input AC power distribution box
for S7503
1.1.2 Single-Input AC Power Distribution Box for
S7506/S7506R
Figure 1-3 Appearance of single-input AC power distribution box
for S7506/7506R

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-3
(1)
(3)(4)
(2)(1)
(3)(4)
(2)
(1) Cable clamp (2) Power switch
(3) Grounding screw (4) Power receptacle
Figure 1-4 Front panel of single-input power distribution box fo
S7506/7506R r
1.1.3 Dual-Input AC Power Distribution Box for
S7506/S7506R
Figure 1-5 Appearance of dual-input AC power distribution box
for S7506/7506R

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-4
(2)
(3)
(4)
1)
1(
()2)(
)
4
(
(2)
(3)
(4)
1)
1(
()2)(
)
4
(
(1) Power switch (2) Cable clamp
(3) Grounding screw (4) Power input receptacle
Figure 1-6 Front panel of dual-input AC power distribution box
for S7506/7506R
1.2 Appearance of DC Power Distribution Box
1.2.1 DC Power Distribution Box for S7503
Figure 1-7 DC power distribution box for S7503

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-5
(2)
(4)
1( )
(1)
(3)(5)
(2)
(
(2)
(4)
1( )
(1)
(3)(5)
(1) Power switch (2) -48 V terminal
(3) Grounding screw (4) RTN terminal
(5) Captive screw
Figure 1-8 Front panel of DC power distribution box for S7503
1.2.2 DC Power Distribution Box for S7506/S7506R
Figure 1-9 Appearance of DC power distribution box fo
S7506/7506R r

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-6
(2)
(4)
1( )
(1)
(3)(5)
(2)
(
(2)
(4)
1( )
(1)
(3)(5)
(1) Power switch (2) -48 V terminal
(3) Grounding screw (4) RTN terminal
(5) Captive screw
Figure 1-10 Front panel of DC power distribution box fo
7506/7506R r

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-7
1.3 Installing a Power Distribution Box
(1)
(2)(3)(4)
(1) Captive screw for power distribution box (2) Grounding screw
(3) AC power distribution box (4) PoE power input
Figure 1-11 Rear view of S7506 chassis (taking S7506 XGbus
PoE AC chassis as an example)
The installation procedure is the reverse of the removal
procedure:
Step 1: Wear an ESD-preventive wrist strap.

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-8
Step 2: Hold both ends of the power distribution box, align it with
the slot for power distribution box, and push it inwards slowly from the
back of the chassis.
Step 3: Insert four captive screws into the screw holes and fasten
them with a screwdriver.
Step 4: Install the ground wire (for detailed procedure, see H3C
S7500 Series Ethernet Switches Installation Manual), and fasten the
grounding screws on the power distribution box with a screwdriver.
Step 5: Push each power module into its slot from the front of the
chassis, fasten the captive screws on the power module with a
screwdriver, and install the air filter.
Step 6: For an AC power distribution box, plug one end of the AC
power cable shipped with the switch into the power receptacle on the
switch, and clamp the power cable plug with the cable clamp. Connect
the other end of the power cable to an AC input receptacle, or a
lightning protection socket strip connected with the AC power supply
in the room where the switch is located. If you are installing a DC
power distribution box, refer to the following section for how to install a
DC power cable.
Step 7: Turn on the power switch and verify that the switch is
powered on.

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-9
1.4 Removing a Power Distribution Box
SRPU
SRPU
LPU
LPU
LPU
LPU
LPU
LPU
FAN
PWR1 PWR2 PWR3
(1)
(1) Captive screw for a power module
Figure 1-12 Position of captive screw for a power module
Note:
Following is a description of the words shown in Figure 1-12:
SRPU: switching and routing process unit
LPU: line processing unit
PWR: power
FAN: fan frame.
Step 1: Wear an ESD-preventive wrist strap.

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-10
Step 2: Turn off the power switch on the chassis. If an AC power
distribution box is used, unplug AC power cable from the chassis; if a
DC power distribution box is used, unplug the DC power cable.
Step 3: Unscrew the captive screws (as shown in Figure 1-12) on
the power modules on the front panel of the chassis with a screwdriver,
remove the air filter, and pull out the power modules by the handle
behind the air filter.
Step 4: Unscrew the grounding screw on the power distribution
box at the back of the chassis with a screwdriver and remove the
ground wire.
Step 5: Unscrew the four captive screws on the power distribution
box at the rear of the chassis with a screwdriver.
Step 6: Pull out the power distribution box from the rear of the
chassis along the slot. If you find it difficult to pull out the power
distribution box, reach for it through the power module slot from the
front of the chassis and push it out.
Caution:
It is difficult to remove a power distribution box with a power module
plugged into it; therefore, remove power modules before removing the
power distribution box.

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-11
1.5 Installing a DC Power Cable
Caution:
Power off the switch before installing a DC power cable.
Step 1: Wear an ESD-preventive wrist strap.
Step 2: Unscrew the captive screws on the connector lid on the
DC power distribution box and open the lid.
Step 3: Loosen the captive nuts on the connectors with a socket
wrench.
Step 4: Plug the -48 V terminal (with blue lead) of the DC power
cable shipped with the switch into the connector marked with -48 V,
and fasten its captive nut.
Step 5: Plug the GND terminal (with black lead) of the DC power
cable shipped with the switch into the connector marked with RTN,
and fasten the captive nut.
Step 6: Cover the connector lid and fasten the captive screws.
Step 7: Connect the terminals on the other end of the DC power
cable to the connectors on the power source used to supply power to
the switch.

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-12
1.6 Removing a DC Power Cable
Caution:
Power off the switch before installing a DC power cable.
Step 1: Wear an ESD-preventive wrist strap.
Step 2: Disconnect the switch from the DC power source.
Step 3: Unscrew the captive screws on the grounding screw lid
on the DC power distribution box and open the lid.
Step 4: Loosen the captive screw on the -48 V terminal with a
socket wrench. Remove the -48 V terminal (with blue lead) of the DC
power cable. Then, fasten the captive screw.
Step 5: Loosen the captive screw on the RTN terminal with a
socket wrench. Remove the RTN terminal (with black lead) of the DC
power cable. Then, fasten the captive screw.
Step 6: Cover the connector lid and fasten the captive screws.

Power Distribution Box Installation Guide
H3C S7503-S7506-S7506R Ethernet Switches
1-13
Caution:
zFor the safety of human bodies and equipment, the switch must be
well grounded. The resistance reading between switch chassis and
ground must be less than 1 ohm.
zFor lightning protection, the AC power cable should be led through
an external lightning protection set into your S7500 Ethernet
switch.