Connecting Second-Generation Hybrid Cable

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.

Rate and give feedback:

Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).

Connecting Second-Generation Hybrid Cable

Context

For details related to precautions for using the second-generation hybrid cable (hybrid cable 2.0), see Assembling Second-Generation Hybrid Cable. A hybrid optical-electrical switch can be directly connected using hybrid cables or connected to an HDF.

Table 3-24 Connection scenario using hybrid cable 2.0

Scenario	Connection Description
Direct connection	Splice the pigtail on the switch side to the main cable and directly connect the pigtail to the switch. If no HDF is used, place the main cable and splicing part of the pigtail into the fiber splice tray to prevent the spliced cable from being damaged or contaminated. The customer needs to prepare the fiber splice tray. It is recommended that the fiber splice tray be installed near the hybrid optical-electrical switch in the cabinet.
HDF-based connection	Splice the pigtail on the switch side to the main cable and directly connect the pigtail to the HDF. The HDF and switch are connected using jumpers.

Scenario

Connection Description

Direct connection

Splice the pigtail on the switch side to the main cable and directly connect the pigtail to the switch.

If no HDF is used, place the main cable and splicing part of the pigtail into the fiber splice tray to prevent the spliced cable from being damaged or contaminated.

The customer needs to prepare the fiber splice tray. It is recommended that the fiber splice tray be installed near the hybrid optical-electrical switch in the cabinet.

HDF-based connection

Splice the pigtail on the switch side to the main cable and directly connect the pigtail to the HDF. The HDF and switch are connected using jumpers.

Figure 3-55 Appearance of a fiber splice tray
Click to enlarge

For details about how to splice pigtails in the direct connection scenario, see Assembling Second-Generation Hybrid Cable. The cabling method on the switch port side is the same as that in the scenario where an HDF is used. The following uses the HDF as an example.

The HDF and switch can be installed in the same cabinet or in different cabinets, and jumpers of different lengths are used. The procedure for installing the HDF and switch in the same cabinet using 1.5 m and 0.3 m jumpers is used as an example.

Table 3-25 HDF-based connection

HDF-Based Connection	Cable	Connection Requirements
The HDF and switch are installed in the same cabinet.	0.3 m jumper	The recommended distance between the hybrid optical-electrical switch and the HDF is 1 U to 3 U.
	1.5 m jumper	The recommended distance between the hybrid optical-electrical switch and the HDF is 14 U to 16 U.
	3 m jumper	The recommended distance between the hybrid optical-electrical switch and the HDF is 17 U to 40 U.
The HDF and switch are installed in different cabinets.	7 m jumper	-

Connectors at two ends of each optical fiber in a hybrid cable must be connected to the TX and RX ports on optical modules, one end to a TX port and the other end to an RX port.

Optical fibers in all hybrid cables must be connected according to the same rules. Table 3-26 provides the recommended connection rules.

Table 3-26 Recommended optical fiber connections

Optical Fiber Color	Optical Module on a Switch	Optical Module on an AP
Blue	TX	RX
Yellow	RX	TX

Procedure

Prepare and test the hybrid cable 2.0 according to Assembling Second-Generation Hybrid Cable.

Connect the 1.5 m jumper.

Install the switch and HDF in the cabinet. It is recommended that the distance between the HDF and the slot where the hybrid optical-electrical switch is installed be 14 U to 16 U.
- If multiple switches and HDFs need to be installed in a cabinet, plan the installation position of each device in the cabinet in advance.
- The distance between two HDFs must be greater than 1 U.
- It is recommended that switches connected to hybrid cables be installed at an interval of 1 U to facilitate cable insertion and removal.
Lead the jumper into the cabling space on the side of the cabinet.
Insert the copper module into the port on the hybrid optical-electrical switch.
Remove the dustproof cap from of the optical connector. Connect the jumper to the corresponding ports on the HDF and hybrid optical-electrical switch. During the connection, ensure that the port numbers on the HDF are the same as those on the switch.
Connect the main cable with the pigtail spliced to the corresponding port at the rear of the HDF.

Connect the jumpers to other ports in the same way, and then use cable ties to fix the jumpers. If there are more than 24 cables, route them along both sides of the cabinet. The cabling mode can be left-right or top-bottom.

Table 3-27 Cabling mode

Cabling	Precaution
Left-right cabling	Vertical distance between the switch front panel and the inner side of the cabinet door: ≥ 110 mm If each switch requires 48 ports in full configuration, it is recommended that the vertical distance between the front panel of the switch and the inner side of the cabinet door be greater than or equal to 110 mm. If the distance does not meet requirements, you are advised to use the top and bottom cabling mode.
Top-bottom cabling	The distance between two HDFs or switches must be greater than 1 U.

Cabling

Precaution

Left-right cabling

Vertical distance between the switch front panel and the inner side of the cabinet door: ≥ 110 mm

If each switch requires 48 ports in full configuration, it is recommended that the vertical distance between the front panel of the switch and the inner side of the cabinet door be greater than or equal to 110 mm. If the distance does not meet requirements, you are advised to use the top and bottom cabling mode.

Top-bottom cabling

The distance between two HDFs or switches must be greater than 1 U.

Connect the 0.3 m jumper.
1. Install the switch and HDF in the cabinet. It is recommended that the distance between the HDF and the slot where the hybrid optical-electrical switch is installed be 3 U.
2. Insert the copper module into the port on the hybrid optical-electrical switch.
3. Remove the dustproof cap from of the optical connector. Connect the jumper to the corresponding ports on the HDF and hybrid optical-electrical switch.
4. Connect the main cable with the pigtail spliced to the corresponding port at the rear of the HDF.
5. Connect the jumpers to other ports in the same way, and then use cable ties to fix the jumpers. You are advised to use velcro straps to fix cables.

Translation

简体中文

Download

Updated: 2023-03-02

Document ID: EDOC1000047411

Downloads: 10827

Average rating:

This Document Applies to these Products

Related Version

Digital Signature File

Digital Signature Authentication Mode

Enterprise

Huawei Cloud

Carrier

Consumer

Corporate

Context

Procedure

Related Version

Related Documents

Digital Signature File