H3C S12500 Series User manual

i
Contents
Installing the switch······················································································································································ 1
Confirming installation preparations·······························································································································2
Installing an impedance carrier (optional) ·····················································································································2
Installing a chassis air filter (optional) ····························································································································3
Installing an expansion cable management bracket (optional) ···················································································4
Installation preparation············································································································································4
Installation procedure ··············································································································································5
Installing the switch in a rack···········································································································································7
Installation preparation············································································································································7
Installing slide rails and cage nuts to the rack ······································································································7
Installing the mounting brackets······························································································································9
Mounting the switch in the rack··························································································································· 10
Verifying the installation ······································································································································· 11
Installing the switch on a workbench··························································································································· 11
Installation preparation········································································································································· 12
Installation procedures·········································································································································· 12
Grounding the switch ···················································································································································· 14
Installing a power supply ·············································································································································· 15
Installation preparation········································································································································· 15
Installing a DC power supply······························································································································· 16
Installing an AC power supply····························································································································· 16
Installing a fan tray ························································································································································ 18
Installing a card······························································································································································ 19
Installation preparation········································································································································· 20
Installation procedure ··········································································································································· 20
Connecting power cords··············································································································································· 22
Connecting an AC power cord ··························································································································· 22
Connecting a DC power cord······························································································································ 23
Verifying the installation················································································································································ 25

1
Installing the switch
W
ARNING!
To avoid bodily injury, do not touch any wire, terminal, or part marked with a high-volta
g
e hazard si
g
n.
Figure 1 Hardware installation flow
NOTE:
For the S12504, the impedance carrier, expansion cable management bracket, and chassis air filter are
not installed.

2
Confirming installation preparations
Before installing an H3C S12500 switch, verify that:
•You have read "Preparing for installation" carefully and the installation site meets all the
requirements.
•You have all the items listed in the packing list, and the switch was not damaged during shipment.
If anything is damaged or missing, contact the sales agent or customer representative immediately.
For regulatory compliance and safety information, see "Regulatory compliance and safety information."
Installing an impedance carrier (optional)
An impedance carrier is shipped with each S12508 and S12518 switch. You can install the impedance
carrier at the rear of the chassis (where a ventilation panel is located) to block the airflow from entering
the rear of the chassis.
Install an impedance carrier where switches adopt front to rear airflow.
To install an impedance carrier:
1. Loosen the captive screws on the ventilation panel to remove it.
2. Install the impedance carrier, and fasten the captive screws on the impedance carrier.
Figure 2 Installing an impedance carrier
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3
Installing a chassis air filter (optional)
Chassis air filters are installed at the air intake vents to prevent dust from entering the chassis. Chassis air
filters of the S12500 switches are optional. You can order them as needed.
If you have ordered chassis air filters, H3C recommends you to install the air filters before mounting the
switch to the rack.
•S12508—A chassis air filter is available at both front and rear of the switch. For the installation
procedures, see "Installing an air filter on an S12508."
•S12518—The air filter is located at the rear of the chassis. For the installation procedures, see
"Installing an air filter on an S12518."
Installing an air filter on an S12508
To install the front air filter on an S12508:
1. Holding the notches of the front plastic panel at the bottom part of the chassis, and gently pull the
plastic panel out.
2. Unpack the air filter and attach it to rear of the plastic panel, making sure the installation holes on
the air filter align with the screw holes on the plastic panel. Then attach the air filter to the plastic
panel with screws.
3. Attach the plastic panel back to the chassis.
Figure 3 Installing the front air filter
To install the rear air filter on an S12508:
1. Loosen the captive screws on the ventilation panel and remove it.
2. Unpack the air filter and attach it to where the ventilation panel was located, and then fasten the
captive screws on the air filter.
1
2
3

4
Figure 4 Installing the rear air filter
(1) Ventilation panel (2) Rear air filter
Installing an air filter on an S12518
1. Use a Phillips screwdriver to loosen the screws at both sides of the plastic panel and remove the
panel.
2. Insert the air filter into the rear of the chassis along the slide rails, and then fasten the screws at both
sides of the air filter.
Figure 5 Installing an air filter
Installing an expansion cable management bracket
(optional)
Each S12508 and S12518 switch provides two types of chassis cable management brackets. You can
select either type as needed.
•Cable management brackets—Shipped with the switch. For more information, see "Product
overview."
•Expansion cable management brackets—Upper cable management bracket with a mark, and
lower cable management bracket with no mark. They are installed in the same positions as the
cable management brackets shipped with the switch except that they can route more cables.
To install expansion cable management brackets, remove the cable management brackets shipped with
the switch first.
Installation preparation
1. Wear an ESD-preventive wrist strap and make sure the wrist strap is well grounded.
2. Unpack the expansion cable management brackets.
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5
IMPORTANT:
•Make sure no filler panel or card is installed on the front panel of the switch before you remove or install
a lower cable management bracket.
•Keep the removed chassis panel and cable management brackets for future use.
Installation procedure
Each S12500 switch has keyhole standoffs on its cable management bracket and keyholes on the chassis
for attaching the cable management bracket to the chassis. See Figure 6.
Figure 6 Keyhole standoff and keyhole
(1) Keyhole standoff (2) Keyhole
Installing an upper expansion cable management bracket
1. Holding the notches on both sides of the chassis panel above the upper cable management
bracket, gently remove the panel.
2. Pressing the two sides of the front panel, pivot the power frame front panel upward.
3. Loosen the fastening screws on the upper cable management bracket with a Phillips screwdriver.
4. Align the keyhole standoffs on the rear of the cable management bracket with the keyholes on the
chassis and remove the cable management bracket.
5. Align the keyhole standoffs on the upper expansion cable management bracket (with a mark) with
the keyholes on the chassis.
6. Push the expansion cable management bracket forward until it makes close contact with the
chassis. Then pull the expansion cable management bracket downwards a little until the keyhole
standoff fits into the keyhole on the chassis.
7. Unpack the screws come with the expansion cable management bracket and fasten them with a
Phillips screwdriver to attach the expansion cable management bracket to the chassis.
8. Close the power frame front panel.

6
Figure 7 Installing an upper expansion cable management bracket
12
34
56
7

7
Installing a lower expansion cable management bracket
1. Remove the filler panel or card on the front panel. For how to remove them, see "Replacement
procedures."
2. Loosen the fastening screws on the lower cable management bracket with a Phillips screwdriver.
3. Align the keyhole standoffs on the rear of the lower cable management bracket with the keyholes
on the chassis and remove the cable management bracket.
4. Align the keyhole standoffs on the lower expansion cable management bracket (with no mark)
with the keyholes on the chassis.
5. Push the expansion cable management bracket forward until it makes close contact with the
chassis. Then pull the expansion cable management bracket downwards until the keyhole standoff
fits into the keyhole on the chassis.
6. Unpack the screws come with the expansion cable management bracket and fasten them with a
Phillips screwdriver to attach the expansion cable management bracket to the chassis.
7. Install the removed filler panel or card. For more information, see "Installing a card."
For illustration of the installation procedure for a lower cable management bracket, see Figure 7.
Installing the switch in a rack
CAUTION:
W
hen movin
g
the switch, hold the handles at both sides of the chassis. Do not hold the plastic panel of the
chassis, the handle of the fan tray, the handle of the back cover of the chassis, or the air vents of chassis.
A
ny attempt to carry the switch with these parts may cause equipment damage or even bodily injury.
Installation preparation
Confirm the following preparations before starting installation:
•The rack is sturdy and securely grounded.
•There is sufficient clearance of 0.8 m (2.62 ft) around the rack for heat dissipation and installation.
•There is no debris inside or around the rack.
•The total height of the switches to be installed is no higher than the height of the rack and enough
clearance is reserved for cable routing.
Installing slide rails and cage nuts to the rack
Besides slide rails, you can use a rack shelf to support the switch. This document describes how to install
slide rails only.
To ensure correct installation, use industry-standard slide rails or rack shelves. Slide rails or rack shelves
are not provided with the switch. Prepare them yourself, or order them from H3C.
Installing slide rails
Before installing the switch to the rack, install slide rails to the rack. If the rack has slide rails, skip this
section.
Before installing the slide rails, verify that the slide rails can support the weight of the switch. For the
weight of the S12500 switch and hardware components, see "Appendix A Technical specifications."

8
The appearance and installation methods of slide rails depend on the slide rail types.
This section uses a 19-inch rack as an example to describe the installation procedures. The rack unit (RU)
(44.45 mm, or 1.75 in) measures the height of rack posts. As shown in Figure 8, each 1 RU has three
mounting holes with center-to-center separations of 15.88 mm (0.63 in), 15.88 mm (0.63 in), and 12.70
mm (0.5 in). When installing the slide rails, make sure the bottom edge of the slide rails aligns with the
middle of the narrowest separation between mounting holes.
To install the slide rails:
1. Mark the position of the slide rail on the right rack posts.
Make sure the clearance above the slide rail is sufficient for the switch. For the dimensions of the
S12500 switch, see "Appendix A Technical specifications."
2. Align the screw holes on the two sides of the slide rail with the corresponding mounting holes on
the right rack posts, and then fasten the screws.
3. Repeat steps 1 and 2 to install the other slide rail to the left rack posts.
Keep the two slide rails at the same height so that the switch can be placed evenly.
Figure 8 Locating the installation position of the slide rail
Installing cage nuts
Before mounting the chassis to the rack, install cage nuts to the front square-holed brackets of the rack.
To install cage nuts to the rack:
1. Face the front of the rack.
2. Align the mounting bracket with the left rack post, making sure its bottom edge and the slide rail
are level. Mark the positions of the cage nuts on the rack post according to the mounting holes on
the mounting bracket. (Each mounting hole on the mounting bracket corresponds to one cage nut.)
3. Insert one edge of a cage nut into the hole.
4. Compress the other edge of the cage nut to push the cage nut fully into the hole.
5. Repeat steps 2, 3, and 4 to install cage nuts to all the marked positions on the right rack post.

9
Figure 9 Installing the cage nuts
Installing the mounting brackets
Attach the mounting brackets onto the left and right sides of the switch.
Figure 10 Installing the mounting brackets (for the S12504)

10
Figure 11 Installing the mounting brackets (for the S12508 and S12518)
Mounting the switch in the rack
Before you mount the switch in the rack, make sure you have installed slide rails or a rack shelf on the rack
for supporting the switch.
To maximize the stability of the rack, mount the heaviest switch at the bottom of the rack when you install
multiple switches on the rack.
To mount the switch in the rack:
1. Use several persons to place the switch on the slide rails or rack shelf and slide the switch into the
rack until the mounting brackets on the switch touch the front rack posts.
2. Attach the mounting brackets to the rack posts with mounting screws. See Figure 12.

11
Figure 12 Installing the switch in a standard 19-inch rack
NOTE:
If the screw holes on the mounting brackets cannot align with the cage nuts on the rack, verify that the
bottom edge of the slide rail aligns with the middle of the narrowest metal area between mounting holes
and that the cage nuts are installed in the correct holes.
Verifying the installation
After the installation is completed, check the installation against the following checklist. Make sure all
check results are positive.
Table 1 Installation checklist
Item
Result
Remarks
Yes No
The mounting brackets are firmly attached to the switch.
The switch is sturdy and installed in the right position.
The mounting brackets on the switch are firmly attached to the rack.
Installing the switch on a workbench
You can install the switch on a clean, sturdy workbench or on the floor.

12
Installation preparation
Before placing the switch on a workbench or on the floor, confirm the following preparations:
•The workbench or floor is sturdy enough to support the weight of the chassis and its accessories.
•The workbench or floor is reliably grounded.
Installation procedures
IMPORTANT:
A
llow 0.8 m (2.62 ft) of clearance around the switch for heat dissipation.
To install the switch:
1. Hold the two sides of the switch and steadily move the switch to the workbench.
2. Lift the switch a little higher than the workbench and put it on the workbench.
3. Install the mounting brackets on the switch and fasten the screws, as shown in Figure 13 (optional).
Each circled area in Figure 13 shows two rows of installation holes. You can select either row of
a circled area to install the mounting brackets.

13
Figure 13 Installing the mounting brackets
(1) Mounting bracket installation holes (2) Mounting bracket
4. Attach the switch to the workbench or ground with L-shaped brackets. See Figure 14.
Figure 14 Installing L-shaped brackets
(1) L-shaped bracket (2) Wall anchor (3) Mountin
g
screw
1
2

14
Grounding the switch
W
ARNING!
For the safety of operators and equipment, securely ground the switch. Make sure the resistance readin
g
between the switch chassis and the ground is less than 1 ohm.
Most racks are equipped with a grounding strip. You can connect the yellow-green grounding cable of
the switch to the grounding strip.
CAUTION:
Connect the grounding cable to the earthing system in the equipment room. Do not connect it to a fire main
or lightning rod.
Use the supplied grounding cable (CAT 6 cable with dual-hole OT terminals).
To connect the grounding cable:
1. Remove the two grounding screws from the switch chassis.
2. Use the grounding screws to attach one end of the grounding cable to the chassis.
3. Connect the other end of the grounding cable to the grounding strip of the rack in the same way.

15
Figure 15 Connecting the grounding cable
If there is no grounding point on the rack, you can attach the grounding cable to a grounding strip. The
installation procedures are similar.
Installing a power supply
The S12500 switches supports both AC and DC power supply. You can select either AC or DC power
supplies as needed. For how to connect power cords, see "Connecting power cords."
Installation preparation
CAUTION:
•Hold a power entry module (PEM) or power supply by the bottom when moving it. Never attempt to lif
t
a PEM or power supply with its handle because the handle is not desi
g
ned to support wei
g
ht. Doin
g
so
might result in bodily injury or damage to the module.
•When inserting or removing a power supply, verify that the switch is sturdy. To prevent bodily injury,
avoid tipping the switch chassis.
•When hot-plugging power supplies, make sure the insertion interval is no less than 30 seconds.
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16
To prepare for installation:
1. Wear an ESD-preventive wrist strap and make sure it is properly grounded.
2. Remove the blank panel (if any) from the slot to be used.
3. Remove the power frame cover.
Installing a DC power supply
1. Rotate the power frame cover up with both hands.
2. Pull the clip at the bottom left corner of the power supply to the left to open the power supply panel.
3. Insert the power supply slowly into the slot until it is firmly seated in the slot.
4. Close the panel of the power supply, press the clip to lock the power supply in position, and close
the power frame cover.
Figure 16 Installing a power supply
Installing an AC power supply
To install an AC power supply, follow these steps:

17
•Installing a PEM
•Installing an AC power supply
Installing a PEM
1. Loosen the screws on the filler panel of the PEM slot with a Phillips screwdriver to remove the filler
panel.
2. Insert a PEM slowly along the slide rails until it touches the backplane connector.
3. Use the M3 screws supplied with the PEM to attach the PEM to the switch chassis, and fasten the
screws with a Phillips screwdriver.
Figure 17 Installing a PEM
NOTE:
Gently insert the PEM into the chassis to avoid damaging the connector at the end of the PEM.
Installing an AC power supply
IMPORTANT:
•Make sure the number of power supplies is sufficient for the switch to operate properly.
•Each receptacle on the PEM corresponds to a power supply slot. To enable an AC power supply to work,
provide power supply to the relevant receptacle.
•Distribute power supplies in the upper and lower frames evenly on the S12518.
The procedures for installing an AC power supply are similar to installing a DC power supply. For more
information, see "Installing a DC power supply."
1
2
3

18
Installing a fan tray
CAUTION:
•The fan trays are heavy. Do not try to move a fan tray by yourself.
•Hold a fan tray by the bottom when moving it. Never attempt to lift a fan tray with its handle because the
handle is not designed to support weight. Doing so might result in bodily injury or damage to the
module.
The S12504 has one fan tray. Each of the S12508 and the S12518 has two fan trays. They are installed
in the same way.
To install a fan tray:
1. Wear an ESD-preventive wrist strap and make sure it is properly grounded.
2. Unpack the fan tray.
3. Remove the blank panel from the slot to be used.
4. Lift the fan tray and push it into the slot until it is firmly seated in the slot.
5. Fasten the captive screws on the front panel of the fan tray.
Figure 18 Installing a fan tray (for the S12504)

19
Figure 19 Installing a fan tray (for the S12508 and S12518)
Installing a card
CAUTION:
The LST1XP32REB1 and LST1XP32REC1 have three circled areas marked with HAND OPERATION ARE
A
(see Figure 20) on their print circuit board. You can touch these areas when holdin
g
the card. Touchin
g
any area outside these three areas might result in damage to the LPU.
On an S12504, install at least one MPU, one LPU, and three switching fabric modules. On an S12508
or S12518, install at least one MPU, one LPU, and seven switching fabric modules.
The S12500 does not support intermixing of the MPU, LPU, and switching fabric modules.
Use one of the following positions to install the card:
•Install MPUs, Ethernet interface cards, and OAA cards at the front of the switch chassis. Slot 0 and
Slot 1 are for MPUs and other slots (slots 2 to 5 for the S12504, slots 2 to 9 for the S12508, and
slots 2 to 19 for the S12518) are for Ethernet interface cards and OAA cards.
•Install switching fabric modules in the switching fabric module slots (slots 6 to 9 for the S12504,
slots 10 to 18 for the S12508, and slots 20 to 28 for the S12518) at the rear of the chassis.