Contents

2 Installing the router 2-1

Installation flowchart 2-2

Confirming installation preparations· 2-3

Rack-mounting the router 2-3

Attaching slide rails to the rack· 2-3

(Optional) Installing PDUs· 2-3

Removing the top hood· 2-4

Mounting the router in a rack· 2-5

Installing fan trays· 2-10

Grounding the router 2-11

Installing cable management brackets· 2-12

 

2 Installing the router

The figures of router and components in the document are for illustration only.

Keep the packing boxes and packing bags for the chassis and components secure for future use.

Installation flowchart

Figure2-1 Installation flowchart

 

Confirming installation preparations

Before you install the router, verify that:

·     You have read "Preparing for installation" carefully.

·     All the requirements described in "Preparing for installation" are met.

Rack-mounting the router

	CAUTION: For good ventilation and easy maintenance, reserve a minimum clearance of 1200 mm (47.24 in) between the rack and walls or other devices.

 

Attaching slide rails to the rack

CAUTION: The router is high and heavy. To ensure rack and router stability, install slide rails at the location marked "1RU" on the rack. Make sure the load-bearing plane of the slide rails is perpendicular to the four rack posts.

 

To rack-mount the router, select and attach slide rails to the rack. See Table2-1 for the slide rail requirements.

Table2-1 Slide rail requirements

Router model	Max. chassis weight (fully configured)	Applicable slide rails
		Slide rail model	Adjustment range	Occupied space
CR19000-20	600 kg (1322.75 lb)	LSXM1BSR	630 mm to 900 mm (24.80 in to 35.43 in)	1 RU

 

For information about installing the slide rails, see H3C LSXM1BSR 1U Bottom-Support Rails Installation Guide (available at https://www.h3c.com/en/Support/Resource_Center/EN/Routers/Catalog/CR19000/CR19000/).

(Optional) Installing PDUs

If you are to use PDUs, install PDUs on the rack before installing the router in the rack. Two PDU brackets are required for installing a PDU on the rack.

To install PDUs:

1.     Determine the PDU installation locations on the rack posts.

Make sure the installation of PDUs does not cross the rack beams, does not affect fan tray installation, removal, or maintenance, and allows easy cable routing.

2.     Install cage nuts at the PDU bracket installation locations, as shown by callout 1 in Figure2-3.

3.     Use two M6 screws to secure a PDU bracket to the rack post, as shown by callout 2 in Figure2-3.

4.     Attach the PDU to the PDU brackets. See callout 3 in Figure2-3.

¡     To install the PDU on the right rack post, align the two left installation holes of the PDU with that in the PDU bracket and use screws to secure the PDU to the bracket. Then use the same method to secure the other end of the PDU to the rack.

¡     To install the PDU on the left rack post, align the two right installation holes of the PDU with that in the PDU bracket and use screws to secure the PDU to the bracket. Then use the same method to secure the other end of the PDU to the rack.

5.     Repeat the above steps to install other PDUs.

Figure2-2 Installing PDUs

 

Removing the top hood

The top hood of the router blocks the installation holes in the mounting brackets. Before mounting the router in the rack, remove the top hood from it.

To remove the top hood from the router:

1.     Wear an ESD wrist strap. Make the wrist strap makes good skin contact and is reliably grounded.

2.     Use a screwdriver to loosen the captive screws at the two sides of the top hood and then remove the top hood from the chassis.

Figure2-3 Removing the top hood

 

Mounting the router in a rack

CAUTION: ·     The router is heavy. As a best practice, remove fan trays from the router before installing the router in the rack. ·     The router is high and heavy. As a best practice, use a minimum of four people to lift the chassis. To avoid equipment damage, hold the chassis handles rather than the handles of components such as power supplies to lift the chassis. ·     Before mounting the router in a rack, determine the cage nut installation holes according to the holes in the mounting brackets. The mounting brackets are long. Make sure the holes are correctly aligned and the cage nuts are installed securely. ·     Place the router on the slide rails from the front of the rack to prevent the mounting brackets from hindering the rack-mounting of the router. ·     As a best practice, arrange installation personnel both in front of and in back of the chassis for pushing the router into the rack.

 

To mount the router in a rack:

1.     Wear an ESD wrist strap and verify that the rack is reliably grounded and sturdy.

2.     Determine the cage nut installation holes according to the holes in the mounting brackets, as shown in Figure2-1. Mark the cage nut installation holes on the front rack post.

The mounting brackets have been installed in the chassis. Because the mounting brackets are long, alignment depending on eyes only might be incorrect. You can use other tools, such as a tape measure, to align the holes in the mounting brackets with the holes on the rack post for installing cage nuts.

Figure2-4 Marking the cage nut installation holes

 

3.     Insert cage nuts into the marked square holes in the front rack posts.

Figure2-5 Installing the cage nuts

 

4.     Orient the chassis with the rear facing the front of the rack.

5.     Use a minimum of four people to lift the router to a height slightly above the slide rails by holding the chassis handles. Then place the router on the slide rails.

 

CAUTION: After you place the router on the slide rails from front of the rack, do not leave go of your hands immediately because this might tip and damage the router.

 

6.     All people work in cooperation to slide the router along the guide rails into the rack until the mounting brackets on the router come into contact with the front rack posts.

The persons in front of the chassis push and a person in back of the chassis pulls the chassis by holding two horizontal handles in the fan tray area (as shown in Figure2-6).

 

CAUTION: To avoid damaging the handles in the fan tray area, apply force only in the horizontal direction rather than vertical direction when using the handles to pull the chassis.

 

Figure2-6 Rear pulling of the router

 

7.     Use M6 screws provided with the router to secure the router to the rack posts, as shown in Figure2-7.

Figure2-7 Securing the router to the rack

 

Installing fan trays

CAUTION: ·     The router has 33 fan tray slots at the chassis rear, arranged in 11 rows with three fan trays in each row. To ensure good ventilation, install a fan tray in each fan tray slot. ·     Before powering on the router, make sure all fan tray slots are correctly installed with fan trays. ·     The fan trays in the top four rows (FAN 1 to FAN 12), in the middle three rows (FAN 13 to FAN 21), and in the bottom four rows (FAN 22 to FAN 33) power up after a three-second delay, two-second delay, and four-second delay, respectively upon power-up of the router. Before a fan tray powers up, its OK/FAIL LED is red. ·     The router uses N+1 fan tray redundancy. When a fan tray fails, the router can dissipate heat normally. However, replace the faulty fan tray immediately as a best practice.

 

To install a fan tray:

1.     Wear an ESD wrist strap.

2.     Correctly orient the fan tray (with the lettering on it upward) and align the fan tray with the fan tray slot.

3.     Grasp the handle of the fan tray with one hand and support its bottom with the other, and steadily insert the fan tray way into the slot.

Figure2-8 Installing a fan tray

 

Grounding the router

CAUTION: ·     Reliably grounding the router is crucial to lightning protection and EMI protection. Ground the router reliably before you use it. ·     To guarantee the grounding effect, use the grounding cable (yellow-green grounding cable) provided with the router. ·     Connect the grounding cable to the earthing system in the equipment room. Do not connect it to a fire main or lightning rod. ·     Make sure the ground point on the rack is connected reliably to a grounding strip in the equipment room.

 

IMPORTANT: The grounding cable provided with the router is NEBS compliant. Connect the two-hole grounding lug of the grounding cable to the chassis and the ring terminal to a grounding strip.

 

To ground the router:

1.     Remove the grounding screws from the grounding point on the chassis.

2.     Use the grounding screws to attach the two-hole grounding lug of the grounding cable to grounding point on the chassis.

3.     Connect the ring terminal of the grounding cable to the grounding point on the rack.

Figure2-9 Grounding the router

 

Installing cable management brackets

IMPORTANT: To prevent cable management brackets from blocking the mounting bracket mounting holes on the rack posts, install cable management brackets after you mount the router in the rack.

 

The router comes with four types of cable management brackets LA, RA, RB/LC, and RC/LB and two types of cable guides A and B. The cable management brackets come with cable guides installed.

Figure2-10 Cable management brackets

 

The installation procedure is similar for cable management brackets at the left side and at the right side. The following installs a cable management bracket at the right side.

To install a cable management bracket:

1.     If any cable guide hinders installation of the cable management bracket, press the tab on the cable guide and then remove the cable guide from the cable management bracket.

Figure2-11 Removing a cable guide

 

2.     Identify the installation position on the mounting bracket. The LA, LB, LC, RA, RB, and RC marks on the mounting brackets indicate the types of cable management brackets to be installed.

3.     Orient the cable management bracket, with the lettering facing upward, and then position the cable management bracket on the mounting bracket.

4.     Align the captive screws on the cable management bracket with the holes in the mounting bracket. Fasten the captive screws to secure the cable management bracket.

Figure2-12 Installing a cable management bracket

 

5.     Install the removed cable guides (if any) to the cable management bracket.