Scenario : Cabinet/Rack Mounting

S200, S300, S500, S1700, S2700, S3700, S5700, and S6700 Series Switches Hardware Installation and Component Replacement

This document describes installation procedures of the S200, S300, S500, S1700, S2700, S3700, S5700, and S6700 series switches, troubleshooting methods for common faults, and switch maintenance instructions. From this document, you can obtain information required for installation and maintenance of the S200, S300, S500, S1700, S2700, S3700, S5700, and S6700 series switches.

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Scenario : Cabinet/Rack Mounting

Using Front Mounting Brackets
Using Front and Rear Mounting Brackets
Using Front Mounting Bracketsor Cable Management Frames and Rear Mounting Brackets

Using Front Mounting Brackets

Context

This installation method applies to the following switches:

S1700 (excluding the S1700-8-AC and S1700-8G-AC), S1720, and S1730S (excluding the S1730S-L8T-A, S1730S-L8T-MA, and S1730S-S48P4S-A)
All S2700 series switches
All S3700 series switches
Some S5700 models, including the S5700-LI, S5700S-LI, S5710-LI, S5720-LI, S5720S-LI, S5700-SI, S5720-SI (except 420-mm deep models), S5720S-SI, S5700-EI, S5720-EI (except 420-mm deep models), S5700-HI, S5720I-12X-SI-AC, S5720I-12X-PWH-SI-DC, S5720I-28X-SI-AC, S5720I-28X-PWH-SI-AC, S5731-S (except 420-mm deep models), S5731S-S (except 420-mm deep models), S5736-S (except 420-mm deep models), S5735-L (except 420-mm deep models), S5735S-L (except 420-mm deep models), S5735-L1, S5735S-L1, S5735-L-I, and S5735S-L-M
Some S6700 models, including the S6700-EI, S6720S-EI, S6720-LI, S6720S-LI, and S6730-H (except 420-mm deep models)
All S200 series switches
All S300 series switches
All S500 series switches

Follow these precautions before or during the installation:

Ensure that the cabinet is stable and meets the requirements specified in Checking the Cabinet or Rack.
Leave sufficient vertical space in the cabinet or rack for the switch.
Leave at least 50 mm (2.0 in.) clearance around the switch for heat dissipation. Do not install a switch with its air intake vent facing or close to the air exhaust vent of other devices.
To install multiple switches in one cabinet or rack, leave at least 1 U (1 U = 44.45 mm) between switches that use natural heat dissipation. For switches that use forced or intelligent air cooling, the recommended spacing between them is 1 U.
Align the mounting brackets on the left and right mounting rails. If they are not on a horizontal line, forcibly mounting the switch may distort the chassis.
For an S6700-EI switch, using guide rails (purchased separately) to support the chassis is recommended.
The S5720I-12X-SI-AC, S5720I-12X-PWH-SI-DC, S5720I-28X-SI-AC, and S5720I-28X-PWH-SI-AC switches can also be installed in outdoor cabinets. The installation method and requirements are the same as those in the indoor cabinets.

Tools and Accessories

ESD wrist strap or ESD gloves
Phillips screwdriver
Flat-head screwdriver
Floating nuts (four per switch, purchased separately)
M4 screws (The quantity depends on the switch. See Figure 3-4.)
M6 screws (four per switch, purchased separately)
Front mounting brackets (two per switch)
Ground cable
Guide rails (optional)

The M4 screws and front mounting brackets are included in the installation accessory package.

When installing mounting ears, use screws of the same specifications as those configured by the manufacturer. Do not use screws that are too long to prevent damage to the device.

Procedure

Wear an ESD wrist strap or ESD gloves. When wearing an ESD wrist strap, ensure that it is in close contact with your wrist and grounded properly.
Use M4 screws to attach a front mounting bracket delivered with the switch to each side of the switch. Figure 3-4 shows the front mounting brackets delivered with different switch models and associated installation methods.
- To install a 250 mm x 180 mm (9.8 in. x 7.1 in. W x D) switch in a 19-inch cabinet, use the front mounting brackets shown in c of Figure 3-4 (some models need purchased separately, part number of 21240477).
- To install a 220 mm (8.7 in.) deep switch in a 21-inch cabinet, install the front mounting brackets according to g of Figure 3-4.
- See Figure 3-4 for the number of screws required for each mounting bracket.
- When installing mounting ear j, pay attention to the R/L label on the mounting ear. The mounting ear labeled R is installed on the right side of the device, and the mounting ear labeled L is installed on the left side of the device. In addition, the mounting ear marked with R has a ground hole for connecting a ground cable to provide the grounding function.
Figure 3-4 Installing front mounting brackets

Figure 3-5 Spacing of mounting holes for different mounting ears
Connect the ground cable to the switch. For details, see step 2 and step 3 in Connecting the Ground Cable.

This step is optional. For switch models with the ground point at the left or right side of the chassis, connect the ground cable before mounting the switch in the cabinet or rack.
Install floating nuts on the mounting rails of the cabinet.
Determine the installation position of the switch and use a flat-head screwdriver to install two floating nuts on each front mounting rail accordingly. Leave a gap of one mounting hole between the two floating nuts and ensure that they are level with those on the other rail.

Pay attention to the scale markings on the mounting rails because three adjacent mounting holes may not be 1 U.
Install the switch in the cabinet. The methods for installing switches that use different front mounting brackets are the same. Figure 3-6 shows an example.
1. Hold the bottom of the switch and align the holes on the front mounting brackets with the floating nuts on the front mounting rails.
2. Secure the mounting brackets to the mounting rails with M6 screws (two on each side) using a Phillips screwdriver.
Figure 3-6 Installing the switch in the cabinet

Using Front and Rear Mounting Brackets

Context

This installation method applies to the following switches:

S1730S-S48P4S-A
Some S5700 models, including S5710-EI, S5720-SI (420-mm deep models), S5720-EI (420-mm deep models), S5720-HI, S5730-SI, S5730S-EI, S5730-HI, S5731-H, S5731-S (420-mm deep models), S5731S-S (420-mm deep models), S5731S-H, S5732-H, S5735-L (420-mm deep models), S5735S-L (420-mm deep models), S5735-S, S5735S-H, S5736-S, and S5735S-S
Some S6700 models, including S6720-SI, S6720S-SI, S6720-EI, S6720-HI, S6730-H (420-mm deep models), S6730S-H, S6730-S, S6735-S, and S6730S-S

Follow these precautions before or during the installation:

Ensure that the cabinet is stable and meets the requirements specified in Checking the Cabinet or Rack.
Leave sufficient vertical space in the cabinet or rack for the switch.
Leave at least 50 mm (2.0 in.) clearance around the switch for heat dissipation. Do not install a switch with its air intake vent facing or close to the air exhaust vent of other devices.
To install multiple switches in one cabinet or rack, leave at least 1 U (1 U = 44.45 mm) between switches that use natural heat dissipation. For switches that use forced or intelligent air cooling, the recommended spacing between them is 1 U.
Align the mounting brackets on the left and right mounting rails. If they are not on a horizontal line, forcibly mounting the switch may distort the chassis.
If guide rails are installed in the cabinet, install only front mounting brackets on the switch.
The distance data provided in this section is calculated theoretically and does not include tolerances.

Tools and Accessories

ESD wrist strap or ESD gloves
Phillips screwdriver
Flat-head screwdriver
Measuring tape
Floating nuts (eight per switch, purchased separately)
M4 screws (eight or fourteen per switch)
M6 screws (eight per switch, purchased separately)
Front mounting brackets (two per switch)
Rear mounting brackets (two per switch)
Rear mounting bracket guide rails (two per switch)

The M4 screws, front and rear mounting brackets, and rear mounting bracket guide rails are included in the installation accessory package.

When installing mounting ears, use screws of the same specifications as those configured by the manufacturer. Do not use screws that are too long to prevent damage to the device.

Procedure

Wear an ESD wrist strap or ESD gloves. When wearing an ESD wrist strap, ensure that it is in close contact with your wrist and grounded properly.
Use a measuring tape to measure the distance between the front and rear mounting rails in the cabinet.

Select front mounting brackets, rear mounting brackets, and rear mounting bracket guide rails based on the distance between the front and rear mounting rails in the cabinet. Use M4 screws to attach front and rear mounting brackets to each side of the switch.

Applicable to the S5710-EI, S5720-SI (420-mm deep models), S5720-EI (420-mm deep models), S5720-HI, S5730-SI, S5730S-EI, S5730-HI, S6720-SI, S6720S-SI, and S6720-EI:

Table 3-13 Front mounting brackets, rear mounting brackets, and rear mounting bracket guide rails (1)

Front Mounting Bracket, Rear Mounting Bracket, and Rear Mounting Bracket Guide Rail	Remarks
	Standard front mounting bracket, rear mounting bracket, and rear mounting bracket guide rail
	Standard front mounting bracket, and custom rear mounting bracket and rear mounting bracket guide rail (part number: 21240538)
	Standard front mounting bracket, and custom rear mounting bracket and rear mounting bracket guide rail (part number: 21240537)

The distance between the front and rear mounting rails in the cabinet determines the installation position of front mounting brackets, rear mounting brackets, and rear mounting bracket guide rails. See Table 3-14.

Table 3-14 Installation of the front mounting brackets, rear mounting brackets, and rear mounting bracket guide rails (1)

Distance Between Front and Rear Mounting Rails	Installation of the Front Mounting Bracket, Rear Mounting Bracket, and Rear Mounting Bracket Guide Rail	Remarks
335-380 mm (13.2-15.0 in.)		Use standard mounting brackets. If the distance between the front and rear mounting rails is 335-365 mm (13.2-14.4 in.), you can only install the front mounting brackets in the opposite direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 51 mm (2.0 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling.
365-415 mm (14.4-16.3 in.)		Use standard mounting brackets. Install front mounting brackets in the normal direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 19 mm (0.75 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling.
378-442 mm (14.9-17.4 in.)		Use standard mounting brackets. Install front mounting brackets in the normal direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 19 mm (0.75 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling.
442-460 mm (17.4-18.1 in.)		Use custom mounting brackets (part number: 21240538). Install front mounting brackets in the normal direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 19 mm (0.75 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling. Only custom rear mounting brackets (part number: 21240538) can cover this distance range. However, there is a risk that the rear mounting brackets protrude from the mounting rails and reach the rear door of the cabinet.
460-510 mm (18.1-20.1 in.)		Use standard mounting brackets or custom mounting brackets (part number: 21240538). If the distance between front and rear mounting rails is 460-495 mm (18.1-19.5 in.): When standard mounting brackets are used, you can only install the front mounting brackets in the opposite direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 51 mm (2.0 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling. When custom mounting brackets (part number: 21240538) are used, install front mounting brackets in the normal direction.
495-543 mm (19.5-21.4 in.)		Use standard mounting brackets. Install front mounting brackets in the normal direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 19 mm (0.75 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling.
506-570 mm (20.0-22.4 in.)		Use standard mounting brackets. Install front mounting brackets in the normal direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 19 mm (0.75 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling.
570-662 mm (22.4-26.1 in.)		Use custom mounting brackets (part number: 21240538). Install front mounting brackets in the normal direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 19 mm (0.75 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling.
662-800 mm (26.1-31.5 in.)		Use custom mounting brackets (part number: 21240537). If the distance between the front and rear mounting rails is 662-694 mm (26.1-27.3 in.), you can only install the front mounting brackets in the opposite direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 51 mm (2.0 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling.
694-830 mm (27.3-32.7 in.)		Use custom mounting brackets (part number: 21240537). Install front mounting brackets in the normal direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 19 mm (0.75 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling.
708-855 mm (27.9-33.7 in.)		Use custom mounting brackets (part number: 21240537). Install front mounting brackets in the normal direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 19 mm (0.75 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling.

Applicable to the S1730S-S48P4S-A, S5731-H, S5731-S (420-mm deep models), S5731S-S (420-mm deep models), S5731S-H, S5732-H, S5735-L (420-mm deep models), S5735S-L (420-mm deep models), S5735-S, S5735S-S, S5735S-H, S5736-S, S6730-S, S6730S-S, S6720-HI, S6730S-H, S6735-S, and S6730-H (420-mm deep models):

Table 3-15 Front mounting brackets, rear mounting brackets, and rear mounting bracket guide rails (2)

Front Mounting Bracket, Rear Mounting Bracket, and Rear Mounting Bracket Guide Rail	Remarks
	Standard front mounting bracket, rear mounting bracket, and rear mounting bracket guide rail
	Standard front mounting bracket, and custom rear mounting bracket and rear mounting bracket guide rail (part number: 21240538)
	Standard front mounting bracket, and custom rear mounting bracket and rear mounting bracket guide rail (part number: 21240537)

Table 3-16 Installation of the front mounting brackets, rear mounting brackets, and rear mounting bracket guide rails (2)

Distance Between Front and Rear Mounting Rails	Installation of the Front Mounting Bracket, Rear Mounting Bracket, and Rear Mounting Bracket Guide Rail	Remarks
310-351 mm (12.2-13.8 in.)		Use standard mounting brackets. You can only install the front mounting brackets in the opposite direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 64 mm (2.5 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling.
369-410 mm (14.5-16.1 in.)		Use standard mounting brackets. Install front mounting brackets in the normal direction (see figure).
438-479 mm (17.2-18.9 in.)		Use standard mounting brackets or custom mounting brackets (part number: 21240538). When standard mounting brackets are used, you can only install the front mounting brackets in the opposite direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 64 mm (2.5 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling. When custom mounting brackets (part number: 21240538) are used, install front mounting brackets in the normal direction and install rear mounting bracket guide rails in the opposite direction.
497-538 mm (19.6-21.2 in.)		Use standard mounting brackets. Install front mounting brackets in the normal direction (see figure).
539-637 mm (21.2-25.1 in.)		Use custom mounting brackets (part number: 21240538). Install front mounting brackets in the normal direction (see figure).
638-696 mm (25.1-27.4 in.)		Use custom mounting brackets (part number: 21240537). You can only install the front mounting brackets in the opposite direction (see figure). In this installation mode, the front panel of a switch protrudes from the mounting rails of the cabinet 64 mm (2.5 in.). Ensure that there is enough space between the front panel of the switch and the front cabinet door for cabling.
697-835 mm (27.4-32.9 in.)		Use custom mounting brackets (part number: 21240537). Install front mounting brackets in the normal direction (see figure).

If the distance between the front and rear mounting rails in a cabinet is out of the ranges listed in Table 3-14 and Table 3-16, use a tray together with the front mounting brackets.

Connect the ground cable to the switch. For details, see step 2 and step 3 in Connecting the Ground Cable.

This step is optional. For switch models with the ground point at the left or right side of the chassis, connect the ground cable before mounting the switch in the cabinet or rack.
Install floating nuts on the mounting rails of the cabinet.
1. Determine the installation position of the switch and use a flat-head screwdriver to install two floating nuts on each front mounting rail accordingly. Leave a gap of 1 U between the two floating nuts and ensure that they are level with those on the other front mounting rail.
2. Install two floating nuts on each rear mounting rail. Leave a gap of 1 U between the two floating nuts. Ensure that the lower floating nuts on the four mounting rails are level with one another.
Install two rear mounting bracket guide rails on the rear mounting rails. The distance between the front and rear mounting rails determines the direction in which the guide rails should face. See Table 3-14 and Table 3-16.
1. Align the holes on the guide rails with the floating nuts on the rear mounting rails.
2. Secure the guide rails to the mounting rails with M6 screws (two on each side) using a Phillips screwdriver.
Figure 3-7 Installing rear mounting bracket guide rails (using the distance of 495-543 mm between front and rear mounting rails as an example)

Figure 3-8 Installing rear mounting bracket guide rails (using the distance of 378-442 mm between front and rear mounting rails as an example)
Install the switch in the cabinet. In Figure 3-9, the distance between front and rear mounting rails is 495-543 mm.
1. Align the rear mounting brackets with the rear mounting bracket guide rails. Then, gently slide the switch into the cabinet along the guide rails.
2. Align the holes on the front mounting brackets with the floating nuts on the front mounting rails, and secure each mounting bracket with two M6 screws using a Phillips screwdriver.
Figure 3-9 Installing the switch in the cabinet

Using Front Mounting Brackets or Cable Management Frames and Rear Mounting Brackets

Context

This installation method applies to S5710-HI switches.

Follow these precautions before or during the installation:

Ensure that the cabinet is stable and meets the requirements specified in Checking the Cabinet or Rack.
Leave sufficient vertical space in the cabinet or rack for the switch.
Leave at least 50 mm (2.0 in.) clearance around the switch for heat dissipation. Do not install a switch with its air intake vent facing or close to the air exhaust vent of other devices.
To install multiple switches in one cabinet or rack, leave at least 1 U (1 U = 44.45 mm) between switches that use natural heat dissipation. For switches that use forced or intelligent air cooling, the recommended spacing between them is 1 U.
Align the mounting brackets on the left and right mounting rails. If they are not on a horizontal line, forcibly mounting the switch may distort the chassis.
To install an S5710-HI switch, install front mounting brackets or cable management frames and rear mounting brackets on the switch. If guide rails are installed in the cabinet, install only front mounting brackets or cable management frames on the switch.
If all ports on the switch need to be used, many cables will be connected to the switch. Cable management frames are recommended in this case.

Tools and Accessories

ESD wrist strap or ESD gloves
Phillips screwdriver
Flat-head screwdriver
Measuring tape
Floating nuts (eight per switch, purchased separately)
M4 screws (sixteen per switch)
M6 screws (eight per switch, purchased separately)
Front mounting brackets or cable management frames (two per switch)
Rear mounting brackets (two per switch)
Rear mounting bracket guide rails (two per switch)

The M4 screws, front and rear mounting brackets, cable management frames, and rear mounting bracket guide rails are included in the installation accessory package.

When installing mounting ears, use screws of the same specifications as those configured by the manufacturer. Do not use screws that are too long to prevent damage to the device.

Procedure

Wear an ESD wrist strap or ESD gloves. When wearing an ESD wrist strap, ensure that it is in close contact with your wrist and grounded properly.
Use M4 screws to attach front mounting brackets or cable management frames and rear mounting brackets to the switch. Figure 3-10 and Figure 3-11 show the mounting brackets and cable management frames of an S5710-HI and associated installation methods.
Figure 3-10 Installing front and rear mounting brackets

Figure 3-11 Installing cable management frames and rear mounting brackets
Install floating nuts on the mounting rails of the cabinet. See Figure 3-12.
1. Determine the installation position of the switch and use a flat-head screwdriver to install two floating nuts on each front mounting rail accordingly. Leave a gap of 2 U between the two floating nuts and ensure that they are level with those on the other front mounting rail.
2. Install two floating nuts on each rear mounting rail. Leave a gap of 1 U between the two floating nuts. Ensure that the lower floating nuts on the four mounting rails are level with one another.
Figure 3-12 Installing floating nuts
Use a measuring tape to measure the distance between the front and rear mounting rails.
Install two rear mounting bracket guide rails on the rear mounting rails. The distance between the front and rear mounting rails determines the direction in which the guide rails should face. See Figure 3-13 and Figure 3-14.
1. Align the holes on the guide rails with the floating nuts on the rear mounting rails.
2. Secure the rear mounting bracket guide rails with M6 screws (two on each side) using a Phillips screwdriver.
Figure 3-13 Installing rear mounting bracket guide rails (545-655 mm [21.5-25.8 in.] between front and rear mounting rails)

Figure 3-14 Installing rear mounting bracket guide rails (418-528 mm [16.5-20.8 in.] between front and rear mounting rails)
Install the switch in the cabinet.
- If you have installed front and rear mounting brackets on the switch, perform the following steps:
  1. Place M6 screws on the two lower floating nuts on the front mounting rails. Reserve a clearance between the top of the screws and the floating nuts for installing front mounting brackets.
  2. Align the rear mounting brackets with the rear mounting bracket guide rails. Then, gently slide the switch into the cabinet along the guide rails.
  3. Align the holes on the front mounting brackets with floating nuts on the front mounting rails, place the recesses at the bottom of the front mounting brackets on the M6 screws, and then use a Phillips screwdriver to tighten the M6 screws.
  In Figure 3-15, the distance between front and rear mounting rails is 545-655 mm (21.5-25.8 in.).
  
  Figure 3-15 Supporting the switch using front and rear mounting brackets
- If you have installed cable management frames and rear mounting brackets on the switch, perform the following steps:
  1. Align the rear mounting brackets with the rear mounting bracket guide rails. Then, gently slide the switch into the cabinet along the guide rails.
  2. Align the holes on the cable management frames with the floating nuts on the front mounting rails, and secure the cable management frames with M6 screws using a Phillips screwdriver.
  Do not hold the cable management frames to move the switch as doing so may damage the cable management frames.
  
  In Figure 3-16, the distance between front and rear mounting rails is 545-655 mm (21.5-25.8 in.).
  
  Figure 3-16 Supporting the switch using cable management frames and rear mounting brackets