Contents

2 Installing the device· 2-1

Confirming installation preparations· 2-1

Installing the device in a rack· 2-2

Device dimensions and rack requirements· 2-2

Attaching slide rails to the rack· 2-4

Installing cage nuts for attaching mounting brackets· 2-6

Mounting the device in a rack· 2-8

Grounding the device· 2-10

 

2 Installing the device

	IMPORTANT: Keep the packages of the device and the components for future use.

 

Confirming installation preparations

Before you install the device, verify that:

·     You have read "Preparing for installation" carefully and the installation site meets all the requirements.

·     A 19-inch rack is ready for use and the rack has enough space to accommodate the device.

For information about how to install a rack, see the rack installation guide.

·     The rack is sturdy and reliably grounded.

·     No obstruction inside or outside the rack interfere with installation of the chassis.

·     The heaviest device is placed at the bottom of the rack.

·     The rack can provide power as required by the device. For information about the system power consumption and power supply specifications, see H3C S12500CR Switch Router Series Hardware Information and Specifications.

·     The total height of the devices to be installed is not higher than the available installation height of the rack and enough clearance is reserved for cable routing.

·     The device is ready for installation and has been carried to a place near the rack and convenient for moving.

Installing the device in a rack

Device dimensions and rack requirements

Figure 2-1 S12516CR dimensions

(1) Air filter	(2) Mounting bracket

 

Figure 2-2 S12508CR dimensions

(1) Air filter

(2) Mounting bracket

 

To mount the device in an enclosed rack, make sure the rack meets the requirements described in Table 2-1.

Table 2-1 Device dimensions and rack requirements

Model	Chassis dimensions	Rack requirements
S12516CR	·     Height—1331 mm (52.40 in)/30 RU ·     Width—442 mm (17.40 in) ·     Chassis depth—920 mm (36.22 in) ·     Total depth—1035 mm (40.75 in) ¡     120 mm (4.72 in) from the rack-facing surface of the mounting brackets to the air filter front end ¡     915 mm (36.02 in) from the rack-facing surface of the mounting brackets to the captive screws on the fan tray at the chassis rear	·     A minimum of 1.2 m (3.94 ft) in depth (recommended) ·     A minimum of 130 mm (5.12 in) between the front rack post and the front door. ·     A minimum of 950 mm (37.40 in) between the front rack post and the rear door.
S12508CR	·     Height—842 mm (33.15 in)/19 RU ·     Width—442 mm ( 17.40 in) ·     Chassis depth—920 mm (36.22 in) ·     Total depth—1035 mm (40.75 in) ¡     120 mm (4.72 in) from the rack-facing surface of the mounting brackets to the air filter front end ¡     915 mm (36.02 in) from the rack-facing surface of the mounting brackets to the captive screws on the fan tray at the chassis rear

 

	NOTE: As a best practice, use a rack that has a single door at the front.

 

Attaching slide rails to the rack

	IMPORTANT: The device is heavy. Install the slide rails at the lowest possible position.

 

Skip this section if slide rails have been installed on the rack.

Before you attach slide rails to the rack, verify that the slide rails can support the total weight of the device and its accessories. Table 2-2 lists the device weight and applicable slide rails.

Table 2-2 Device weight and applicable slide rails

Device model	Chassis weight (full configuration)	Applicable slide rails
		Model	Adjustment range	Occupied space
S12516CR	620 kg (1366.84 lb)	LSXM1BSR	630 to 900 mm (24.80 to 35.43 in)	1 RU
S12508CR	400 kg (881.83 lb)

 

	IMPORTANT: M4 or M6 screws are required for attaching the slide rails to the rack. As a best practice, use a torque of 12 kgf-cm (1.18 Nm) and 30 kgf-cm (2.94 Nm) respectively to fasten M4 and M6 screws.

 

To attach the slide rails to the rack:

1.     Read the signs on the slide rails to identify the right and left slide rails and their front and rear ends.

Figure 2-3 Left slide rail

(1) Slide rail installation hole	(2) Sign
(3) Guide rail	(4) Front plate installation hole
(5) Locating tongue

 

Table 2-3 Description for signs on the slide rails

Sign	Meaning	Remarks
LEFT/FRONT	Front end of the left slide rail	Mount this end to the front left rack post.
RIGHT/FRONT	Front end of the right slide rail	Mount this end to the front right rack post.

 

	NOTE: ·     The LSXM1BSR slide rail accessories include the left slide rail, right slide rail, and front plate. ·     One rack unit (RU) has two standard installation holes and one auxiliary installation hole in the middle. The space between a standard installation hole and an auxiliary installation hole is wider than the space between two adjacent standard installation holes.

 

2.     Mark the slide rail installation positions on the rack posts.

¡     Align the locating tongues of the slide rails with the target auxiliary holes in the rack posts, as shown by callout 1 in Figure 2-5.

¡     Mark the start installation hole at the same height on each rack post.

3.     Install cage nuts in the marked standard hole and the standard hole within the same RU. A total of eight cage nuts are required, with two cage nuts for each rack post.

4.     Align the installation holes on the front end of the slide rail with the cage nuts on a front rack post.

5.     Keep the slide rail horizontal and adjust its length until the locating tongues on the slide rail are attached to the auxiliary holes on the rack posts.

6.     Use M6 screws to secure the slide rail to the front and back rack posts, as shown by callout 2 in Figure 2-5.

To ensure load bearing, each installation hole of the slide rail requires a screw. A total of four M6 screws are required to secure the slide rail to the rack.

7.     Repeat steps 4, 5, and 6 to install the other slide rail.

8.     Attach the front plate to the rack:

a.     Orient the front plate so that the front of the plate faces outward. Figure 2-4 shows the rear of the plate.

Figure 2-4 Rear of a front plate

(1) Installation hole

 

b.     Align the installation holes in the front plate with the front plate installation holes in the slide rails, and fasten the screws, as shown by callout 3 in Figure 2-5.

Two M4 screws are required to secure the front plate to the rack.

Figure 2-5 Installing the LSXM1BSR slide rails

 

Installing cage nuts for attaching mounting brackets

Before mounting the chassis in the rack, install cage nuts on the front rack posts for attaching the mounting brackets:

1.     As shown in Figure 2-6 and Figure 2-7, mark the cage nut installation holes for the S12516CR and S12508CR respectively.

2.     Install cage nuts into the marked square holes in the front rack posts.

Figure 2-6 Marking cage nut installation holes for attaching mounting brackets (for the S12516CR)

 

Figure 2-7 Marking cage nut installation holes for attaching mounting brackets (for the S12508CR)

 

Mounting the device in a rack

CAUTION: ·     Hold the chassis handles to move the device. Do not hold the handle of a fan tray, a power supply, or a module, or the air vents of the chassis to carry the device. Any attempt to carry the device with these parts might cause equipment damage or even bodily injury. ·     Remove the removable components including fan trays, power supplies, and modules from the device before lifting. Reinstall these components after installing the device in the rack. ·     Do not place your hand into any slot when you move the chassis.

 

	IMPORTANT: ·     The device is heavy. As a best practice, use a mechanical lift, such as forklift truck, to move and carry the device to the rack. ·     If no mechanical lift is used, cooperate with a minimum of four people to manually lift the device. ·     The maximum load-bearing capacity of the chassis handles is 50 kg (110.23 lb).

 

To rack-mount the device:

1.     Orient the chassis with its rear facing towards the front of the rack.

2.     Lift the chassis until the device bottom is a little higher than the slide rails on the rack.

3.     Pace the device on the slide rails and slide the device into the rack along the slide rails until the mounting brackets are flush against the front rack posts, as shown in Figure 2-8 and Figure 2-9, respectively.

After placing the device on the slide rails, do not leave go of your hands immediately because this might tip the device, damaging the device or even causing bodily injury.

4.     Use M6 screws provided with the device to attach the mounting brackets to the rack posts.

If the mounting holes in the mounting brackets cannot align with the cage nuts on the rack, verify the following items:

¡     The top flange of the slide rail aligns with the middle of the narrower metal area between holes.

¡     The cage nuts are installed in the correct holes.

Figure 2-8 Mounting the S12516CR in the rack

(1) Chassis handle	(2) Slide the chassis into the rack
(3) Use M6 screws to secure the mounting brackets to the rack

 

Figure 2-9 Mounting the S12508CR in the rack

(1) Chassis handle	(2) Slide the chassis into the rack
(3) Use M6 screws to secure the mounting brackets to the rack

 

Grounding the device

	CAUTION: ·     Reliably grounding the device is crucial to lightning protection and EMI protection. Ground the device reliably before you use it. ·     Use the grounding cable (yellow-green grounding cable) provided with the device. ·     Connect the grounding cable to the earthing system in the equipment room. Do not connect it to a fire main or lightning rod.

 

To connect the grounding cable to a grounding strip:

1.     Unpack the grounding cable.

The grounding cable provided with the device is compliant with the NEBS standards. The two-hole grounding lug of the grounding cable is used for connecting the chassis. The ring terminal of the grounding cable is used for connecting the grounding strip.

2.     Remove the grounding screws from the grounding holes at the rear of the chassis.

A grounding sign is provided with the grounding holes, as shown in Figure 2-10.

3.     Use grounding screws to attach the two-hole grounding lug of the grounding cable to the chassis, as shown in Figure 2-10.

The recommended torque is 30 kgf-cm (2.94 Nm).

4.     Connect the other end of the grounding cable to a grounding point or grounding strip.

Figure 2-10 Connecting the grounding cable to a grounding strip