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Huawei S2750 Series Hardware Description

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S2750 Series Ethernet Switches
Hardware Description
Issue
04
Date
2014-03-20
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei S2750 Series

  • Page 1 S2750 Series Ethernet Switches Hardware Description Issue Date 2014-03-20 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 2 All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope.

  • Page 3: About This Document

    NOTICE is used to address practices not related to personal injury. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 4 Changes between document issues are cumulative. The latest document issue contains all changes made to previous issues. Changes in Issue 04 (2014-03-20) This version has the following updates: The documentation is modified according to updates in product features. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 5 Changes in Issue 02 (2013-07-25) This version has the following updates: The following information is modified: 4 Optical Module Changes in Issue 01 (2013-05-30) Initial commercial release. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 6: Table Of Contents

    3.1 Ground Cable................................27 3.2 Optical Fiber.................................27 3.3 Network Cable................................32 3.4 AC Power Cable................................34 3.5 Console Cable................................35 3.6 High-Speed Cable.................................36 4 Optical Module..........................39 4.1 Basic Concepts................................40 4.2 SFP/eSFP Modules...............................42 Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 7: Version Support For Components

    The availability of device models and modules described in this document will be specified in product change notices (PCNs). For details, contact the product manager of Huawei local office. l The figures in this document are for reference only.

  • Page 8: Components Available In V200R003C00 Version

    Table 1-2 Switch models available in V200R005C00 Series Model Maximum Number of Ports S2750-EI S2750-28TP-EI-AC 28 total: 24 Ethernet 10/100 ports, 2 Gig SFP and 2 combo 10/100/1000 or SFP Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 9 24 Ethernet 10/100 PoE+ ports, 2 Gig SFP and 2 combo 10/100/1000 or SFP S2751-28TP-PWR- 28 total: EI-AC 12 Ethernet 10/100 PoE+ ports, 12 Ethernet 10/100 ports, 2 Gig SFP and 2 combo 10/100/1000 or SFP Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 10: Chassis

    S2750 Series Ethernet Switches Hardware Description 2 Chassis Chassis About This Chapter 2.1 Chassis Overview 2.2 Naming Conventions 2.3 S2750-EI Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 11: Chassis Overview

    2 Chassis 2.1 Chassis Overview Huawei S2750 series Ethernet switches provide the access, aggregation, and data transport functions. They meet requirements for reliable access and aggregation and high-quality transmission of multiple services on enterprise networks. S2750 switches use an integrated hardware platform.

  • Page 12: S2750-Ei

    Device Device Model Available Version Series S2750-EI S2750-28TP-EI-AC V200R003C00 and later versions S2750-20TP-PWR-EI-AC V200R003C00 and later versions S2750-28TP-PWR-EI-AC V200R003C00 and later versions S2751-28TP-PWR-EI-AC V200R003C00 and later versions Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 13: Appearance And Structure

    GE-CWDM optical module GE-DWDM optical module Ground screw AC power socket NOTE NOTE It is used with a ground cable. It is used with an AC power cable. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 14 Jack reserved for AC terminal locking latch NOTE NOTE It is used with a ground cable. The AC terminal locking latch is not delivered with the device. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 15 Jack reserved for AC terminal locking latch NOTE NOTE It is used with a ground cable. The AC terminal locking latch is not delivered with the device. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Indicator Description

    The AC terminal locking latch is not delivered with the device. 2.3.3 Indicator Description Table 2-3 is a quick reference table for indicators of S2750-EI switches. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 17 PWR: power The device is powered off. supply indicator Green Steady on: The system power supply is normal. SYS: system The system is not running. status indicator Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 18 ID of the master switch. After 45 seconds, the service port indicators automatically restore to status mode. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 19 FE electrical ports: The ports are numbered from bottom to top and left to right, starting with l GE ports: Each GE port has an indicator above it. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 20 Green Steady on: The status mode (default mode) is selected. If the status mode is selected, the service port indicator shows the port link or activity state. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 21 The PoE mode is not selected. indicator Green Steady on: The service port indicators show the PoE status. After 45 seconds, the service port indicators automatically restore to the status mode (default). Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 22 Table 2-6 Description of service port indicators in different modes Display Mode Color Description Status No link has been established to the port or the port has been shut down. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 23 The manual power management mode is used and the port is not enabled to provide power to the PD. Stack Port indicators do not show the stack ID of the switch. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 24: Port Description

    Ethernet ports of most NICs are MDIs. l A medium dependent interface crossover (MDIX) enables connection between like devices. MDIX ports are usually used on hubs or LAN switches. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 25 You can configure a combo port as an electrical or optical port using the combo-port command. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 26 JTAG port. The JTAG port is an internal port of the switch and is used to check and diagnose equipment faults. Figure 2-8 JTAG port Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 27: Power Supply Configuration

    An internal AC power module (PWR) receives power from an external power source and provides a 12 V output to the chassis. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 28: Heat Dissipation

    2.3.7 Specifications Table 2-11 lists specifications of the S2750-EI series switches. Table 2-11 Specifications of the S2750-EI Item Description DDR memory 256 MB Flash memory 200 MB Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 29 100 V AC to 240 V AC, 50/60 Hz input voltage voltage range Maximu 90 V AC to 264 V AC; 47 Hz to 63 Hz voltage range Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 30 ICES 003 Class A l AS/NZS CISPR22 Class A l IEC61000-4-2 l ITU-T K 20 l ITU-T K 44 Environmental l RoHS standards l REACH compliance l WEEE Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 31 EN 60950-1/A11/A12 l UL 60950-1 l CSA C22.2 No 60950-1 l AS/NZS 60950.1 Laser safety l IEC60825-1 standards l IEC60825-2 compliance l EN60825-1 l EN60825-2 Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 32: Cables

    Hardware Description 3 Cables Cables About This Chapter 3.1 Ground Cable 3.2 Optical Fiber 3.3 Network Cable 3.4 AC Power Cable 3.5 Console Cable 3.6 High-Speed Cable Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 33: Ground Cable

    An active optical cable (AOC) is an optical fiber with optical modules at both ends. AOC cables are easy to use. Figure 3-2 shows the appearance of an AOC cable. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 34 The fiber jumper is a fiber patch cable that connects an optical module to a fiber terminal box. Figure 3-3 shows the appearance of a single-mode LC/PC fiber jumper. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 35 LC/PC fiber jumper. Figure 3-4 Appearance of amultimode LC/PC fiber jumper Figure 3-5 shows the appearance of a single-mode SC/PC fiber jumper. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 36 (Couplers and jumpers are also used.) Figure 3-6 shows the structure of a fiber pigtail. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 37 Table 3-2 Common optical connectors Connector Optical Connector Type Square SC/PC LC/PC MTRJ/PC MPO connector connector connector connector connector Round FC/PC ST/PC connector connector connector Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 38: Network Cable

    Generally, a network cable is a standard unshielded network cable that uses RJ45 connectors. l The appearances of the straight-through cable and the crossover cable are the same. Figure 3-7 shows the appearance of a network cable. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 39 Figure 3-8 Structure of a network cable Main lable Pin Assignments Table 3-3 shows the pin assignments of a straight-through cable. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 40: Ac Power Cable

    To achieve the best electrical transmission performance, ensure that the wires connected to pins 1 and 2 and to pins 3 and 6 are twisted pairs. 3.4 AC Power Cable Appearance and Structure Figure 3-9 shows the appearance of an AC power cable. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 41: Console Cable

    The mains supply 3.5 Console Cable Appearance and Structure Figure 3-10 Figure 3-11 show the appearance and structure of a console cable. Figure 3-10 Appearance of a console cable Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 42: High-Speed Cable

    25 mm SFP+ CU3M SFP-10G- 10 m Active 25 mm SFP+ AC10M NOTICE The two ends of a high-speed cable must be covered by electrostatic discharge (ESD) caps. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 43 Figure 3-13 Structure of an SFP+ high-speed cable Stack Description In addition to data transmission, high-speed cables can be used for stack connection, as described Table 3-6. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 44 SFP+ copper cable l 10 m active SFP+ copper cable l 3 m, 10 m AOC cables l 6GE stack optical module (SFP-6GE- LR) and optical fiber Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 45: Optical Module

    Use optical modules certified for Huawei switches. Non-certified optical modules cannot ensure transmission reliability and may affect service stability on the switch. Huawei is not responsible for any problem caused by non-certified optical modules and will not fix such problems.

  • Page 46: Basic Concepts

    Figure 4-1 Appearance of an optical module 1 3 2 1. Handle 2. Receiver 3. Transmitter 4. Shell 5. Label 6. Dust cap 7. Spring 8. Module connector Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 47 Bandwidth measured at a point with transmit power several dB lower than that of the point with the peak center wavelength. Modal bandwidth reflects spectrum characteristics of an optical module. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 48: Sfp/Esfp Modules

    The extinction ratio indicates the capability of an optical module to identify signal 0 and signal 1. 4.2 SFP/eSFP Modules Appearance Figure 4-2 shows an SFP/eSFP optical module. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 49 GE SFP copper module. Figure 4-3 Appearance of a GE SFP copper module FE Optical Module Table 4-2 Table 4-3 list the attributes of an FE optical module. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 50 Fiber mode: single-mode l Connector type: LC S-SFP-FE-LH40-SM1310 100base- ≤ 40 S-SFP-FE-LH80-SM1550 ≤ 80 100base- SFP-FE-LX-SM1310-BIDI ≤ 15 100base- (Bidirectional optical module) SFP-FE-LX-SM1550-BIDI 100base- ≤ 15 (Bidirectional optical module) Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 51 ≤ 0.22 l Pattern bandwidth: 160 MHz*km l Core diameter: 62.5 μm l Connector type: LC 1000base- l Fiber mode: multimode (OM1) ≤ 0.275 l Connector type: LC Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 52 ≤ 40 1000base- (Bidirectional optical module) LE2MGSC40ED0 ≤ 40 1000base- (Bidirectional optical module) SFP-GE-BXU1-SC 1000base- l Fiber mode: single-mode ≤ 10 (Bidirectional optical l Connector type: SC module) Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 53 ≤ -19.5 ≥ 9 (Bidirectional optical TX1490 -3.0 module) GE-CWDM Optical Module Table 4-6 lists the attributes of a GE coarse wavelength division multiplexing (CWDM) optical module. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 54 DWDM- DWDM- ength SFPGE-1529- SFPGE-1530- SFPGE-1531- SFPGE-153 SFPGE-1532- (nm), 1-90 Model 1533.47, 1534.25, 1535.04, 1535.82, 1536.61, DWDM- DWDM- DWDM- DWDM- DWDM- SFPGE-1533- SFPGE-1534- SFPGE-1535- SFPGE-153 SFPGE-1536- 5-82 Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 55 Overload optical power: -8.0 dBm l Extinction ratio: ≥ 8.2 dB GE SFP Copper Module Table 4-8 lists the attributes of a GE SFP copper module. Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 56 Wavel Powe Sensiti Opti (dB) Dista ength vity (nm) (dBm (dBm) (km) SFP- 1310 -8.4 to -13.8 ≥ 3.5 l Fiber mode: 6GE- single-mode l Connector type: Issue 04 (2014-03-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

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