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http://www.3com.com/ Switch 7750 Installation Guide 3C16895 7-slot Chassis 3C16894 4-slot Chassis and associated modules Part No. 10014824 Published June 2005.
3Com Corporation 350 Campus Drive Marlbor ough, MA 01752-3064 Copyright © 2005, 3Com C orporation. All rights reserv ed. No part of this documentation may be r epr oduced in any form or by any means or used to make any deri vative work (such as translat ion, transformation, or adaptation) without written perm ission fr om 3Com Corporation.
C ONTENTS A BOUT T HIS G UIDE Conventions 7 Related Docum entation 8 S WITCH 7750 C OMPONENTS Switch Chassis 9 Switch Backplane 9 Fabric Module 10 Submodule Slot 11 Fixed Ports 12 Module LEDs 14 Power.
Electrical Safe ty 34 Moving the Switch 34 Laser Saf ety 34 General Site Requirements 34 Installation Space 35 Installation Checklist 35 Installing the Chassis 36 Installing in a Standar d Cabinet 36 .
Removing the AC Power Module 61 Installing the AC Power Module 61 Replacing a Power Supply 62 Replacing I/O Modules 63 Replacing the Fan Assembly 63 T R OUBLESHOOTING T roubleshooting the Configuratio.
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A BOUT T HIS G UIDE This guide describes the 3Com ® Switch 7750 and how to install hardware, configure and boot softwar e, and maintain software and har dware.
8 A BOUT T HIS G UIDE Related Documentation The following manuals offer additional infor mation necessary for managing your Switch 7750: ■ Switch 7750 Command Reference Guide — Provides detailed descriptions of command line inte rface (CLI) commands , that yo u requir e to manage your Switch 7750.
1 S WITCH 7750 C OMPONENTS The chapter describes the following Switch 7750 components: ■ Switch Chassis ■ Switch Backplane ■ Fabric Module ■ Fabric 32 Submodules ■ I/O Modules ■ Power Modu.
10 C HAPTER 1: S WITCH 7750 C OMPONENTS Fabric Module There ar e two Fabric modules for the Switch 7750: ■ Fabric 64 (3C16857 or 3C16857R) ■ Fabric 32 (3C16872) ■ PoE Fabric 96 (3C16886) The Fabric 64 and Fabric 32 are not inte rchangeable. Y ou can install the Fab ric 32 only in a 4-slot chassis.
Fabric Module 11 5 Fan LEDs 6 Power module LEDs 7 I/O module LEDs Figure 3 illustrates the fr ont panel of the Fabric 32. Figure 3 Fabric 32 1 Submodule sl ot 2 Console port 3 Ethernet port 4 Ethernet port LEDs 5 Fan LEDs 6 Power LEDs 7 I/O module LEDs 8 Reset butto n Ta b l e 4 lists Fabric specifications.
12 C HAPTER 1: S WITCH 7750 C OMPONENTS ■ 4-port 1000BASE-X-GBIC submodule ■ 4-port 10/100/1000BASE-T submodule For more information on these submod ules, see “Fabric 32 Submodules” on page 14 .
Fabric Module 13 Console Port The console port is connected to the configuration terminal usin g an RJ-45 connector . Y ou can use the console port for system debugging, configuratio n, maintenance, management, and loading application files.
14 C HAPTER 1: S WITCH 7750 C OMPONENTS Module LEDs The module LEDs show the status of the I/O modules, as described in Ta b l e 10 . Power LEDs PWR1, PWR2, and PWR3 LEDs show the status of the pow er modules, as described in Ta b l e 11 . Fan LED Fan LEDs show the status of the fan frame, as described in Ta b l e 12 .
Fabric 32 Submodules 15 Figure 4 4-Port 1000BASE-X-GBIC Submodu le Ethernet GBIC port 2 Ethernet GBIC port LED Ta b l e 13 describes the 4-port 1 000BAS E-X-GB IC submodule LEDs. Ta b l e 14 lists the specifications for each of the 4-port 1000BASE-X-GBIC submodule.
16 C HAPTER 1: S WITCH 7750 C OMPONENTS Ta b l e 15 describes the 4-port 10/100/1000BASE-T sub module LEDs . Ta b l e 16 lists specifications of the 4-port 10/100/1000BASE-T submodule. See “Electrical Port Con nector” on page 68 for an illustration of the RJ-45 connector and MDI/MDI-X pinout details.
I/O Modules 17 48-port 10/100BASE-T FE PoE Module The 48-port 10/100BASE-T FE PoE module provides 48 10/100 Mbps aut o-sensing Ether net ports that provide a remote power supply to powered devices Figure 12 illustrates the 48-port 10/100B ASE-T FE PoE module.
18 C HAPTER 1: S WITCH 7750 C OMPONENTS 48-port 10/100/1000BASE-T PoE Module The 48-port 10/100/100 0BASE-T PoE modu le provides 48 10/100/1000 Mbps auto-sensing Ether net ports that provide a remote power supply to powered devices. Figure 12 illustrates the 48-port 10/1 00/1000BASE-T PoE module.
I/O Modules 19 Ta b l e 24 describes the specifications of the 48-port 10/100/1 000BASE-T PoE module. 48-port 10/100BASE-T Auto-sensing FE Module The 48-port 10/100BASE-T Auto-sensing FE mo dule provides 48 external 100Mbps Ether net electrical ports.
20 C HAPTER 1: S WITCH 7750 C OMPONENTS Figure 11 Fr ont Panel of the 48-Port 10/100BASE-T Auto-sen sing FE module 1 Ethernet port 2 Ethernet port LED Each 100 Mbps Ethern et port has a green LED, indicating LINK/ACTIVE status. Ta b l e 21 describes the 48-port 10/100BASE-T Auto-sensing FE module LED.
I/O Modules 21 Figure 12 48-port 10/100/1000BASE-T Module Figure 13 illustrates the front panel and LEDs of the 48-port 10/100/1000BASE- T module. Figure 13 Fr ont Panel of the 48-port 10/100/1000BASE-T Module 1 Ethernet port 2 Ethernet port LED Ta b l e 23 describes the 48-port 10/ 100/1000BASE- T module LEDs.
22 C HAPTER 1: S WITCH 7750 C OMPONENTS 24-port 100BASE-FX MMF FE Module The 24-port 100BASE-FX MMF FE module provides 24 100 Mbps multi-mode Ethernet optical port service channels.
I/O Modules 23 20-Port 10/100/1000BASE-T Module The 20-Port 10/100/1000BASE-T modu le provides 20 10/100/1000BASE-T auto-sensing Ether net ports. Figure 16 illustrates the 20-Port 10/100/1000B ASE-T Module. Figure 16 20-Port 10/100/1000BASE-T Mod ule Figure 17 illustrates the front panel of the 20-port 10/100/1000BASE-T module.
24 C HAPTER 1: S WITCH 7750 C OMPONENTS Ta b l e 28 lists specifications of the 20-port 10/100/1000BASE-T modu le. 20-Port 1000BASE- X-SFP Module The 20-port 1000BASE-X- SFP module provides 20 1000 BASE-X fu ll duplex ports and uses an SFP cable. Figure 18 illustrates the 20-po rt 1000BASE-X-SFP module.
I/O Modules 25 1 Ethernet port 2 Ethernet port LED Ta b l e 29 describes the 20-port 1000 BASE-X-SFP module LEDs. Ta b l e 30 lists specifications of the 20-port 1000 BASE-X-SFP module. 8-port 1000BASE-X GBIC Module The 8-port 1000 BASE-X GBIC module prov ides 8 exter nal GBIC module p orts.
26 C HAPTER 1: S WITCH 7750 C OMPONENTS Figure 20 8-Port 1000BASE-X GBIC Module Every GBIC port has a LED, as shown in Figur e 21 . Figure 21 Fr ont Panel of the 8-Port 1000BASE-X GBIC Module 1 GBIC port 2 GBIC port LED Ta b l e 31 describes the 8-Port 1000BASE-X GBIC module LEDs.
I/O Modules 27 8-port 10/100/1000BA SE-T GE Module The 8-port 10/100/1000BASE- T GE module provides 8 external 10/100/1000 Mbps auto-sensing Eth ernet electrical ports.
28 C HAPTER 1: S WITCH 7750 C OMPONENTS Ta b l e 34 describes the LEDs on the 8-po rt 10/100/100 0BASE-T GE module. Specifications of the 8-port 10/1 00/ 1000BASE-T GE module are described in Ta b l e 35 . 1-Port 10GBASE-R-XENP AK Module The 1-port 10GBASE-R-XENP AK module provides a single 10 Gbps XENP AK interface .
Power Module 29 Figure 25 Front Panel of the 1-Port 10GBASE-R-XENP AK Module 1 XENP AK port 2 XENP AK port LEDs Ta b l e 36 describes the 1-port 1 0GBAS E-R-XEN P AK module LE Ds. Ta b l e 37 lists specifications of the 1-port 10GBASE-R-XENP AK module.
30 C HAPTER 1: S WITCH 7750 C OMPONENTS Ta b l e 38 describes the specifications of the Switch 7750 power module. Power Distribution The Switch 7750 power distribution box is installed on the chassis floor in the back of the chassis. It filters, connects, disc onnects and distributes elect rical current to the switch.
Fan Assembly 31 Ta b l e 39 describes the capabilities of th e Switch 7750 PoE power module. The Switch 77 50 provides power through Ethernet ports o n the PoE-suppor ted I/O modules, supporting the maximum distance of 100 m (32 8 ft.). When the Switch 7750 provides power remotely , each Ethernet po rt can provide up to 15.
32 C HAPTER 1: S WITCH 7750 C OMPONENTS Switch 7750 Specifications Ta b l e 40 pr ovides detailed information about features of the Switch 7750. Ta b l e 40 Specifications for the Switch 7750 System Item 4-Slot Chassis 7-Slot Chassis Dimens ions (W x H x D) 436 x 352.
2 I NSTALLING T HE S WITCH 7750 The following sections describe how to prepare and install the components of the Switch 7750: ■ Preparing to Install ■ General Site Requirements ■ Installation Ch.
34 C HAPTER 2: I NSTALLING T HE S WITCH 7750 ■ During the installation, wear an antistatic wrist strap and antistatic gloves. See “Static Electricity” on page 35 for additional information on preventing static. WARNING: Follow local safety regulations when performing any operation with the Switch 7750.
Installation Checklist 35 Static Electricity T o p revent damage caused by the static e lectricity , en sure that: ■ The equipment is grounded ■ The equipment room is dust-proof ■ Adequate temperature and humid ity conditions are maintained. ■ The operator wears an antistatic wr ist strap while ha ndlin g the modu le.
36 C HAPTER 2: I NSTALLING T HE S WITCH 7750 ■ T ools ■ Phillips screwdriver ■ Flat-head screwdriver ■ Antistatic wrist strap ■ Cables ■ Console cable ■ AUX cable ■ Power cord and chas.
Installing a Module 37 Installing a Module T o install a module: 1 Wear an antistatic wrist strap. 2 Remove the blanking plate from the chassis slot and save it for future use. 3 Hold the ejector levers of the module with both han ds and push them outward.
38 C HAPTER 2: I NSTALLING T HE S WITCH 7750 Connecting the Ground Wir e T o connect the ground wire: 1 Wear an antistatic wrist strap. 2 Remove the screw fr om the grounding hole in the switch chassis. 3 Set the ground wir e connector around the gr ounding screw .
Connecting and Configuring Power 39 Connecting the PoE Power Cord Follow these steps to connect the power cord fr om the PoE rack: 1 Loosen the mountin g screw of the PoE terminal block on the r ear panel of the switch.
40 C HAPTER 2: I NSTALLING T HE S WITCH 7750 Installing the Fan Assembly T o install the fan : 1 Wear an antistatic wrist strap. 2 Remove the fan frame from the pack. 3 Hold the ejector levers on the fan f rame with both hands an d push them ou twar d.
Installing Cables 41 Connecting Module Cables This section describes how to conne ct electrical and optical cables. Connecting Electrical Port Cables The 48-port 10/100BASE-T module an d 8-port 10/100/1000BASE-T modu le requir e a RJ-45 connector and cate gory-5 twisted pair cable.
42 C HAPTER 2: I NSTALLING T HE S WITCH 7750 CAUTION: When connecting an SC fiber connector , the swit ch TX must be connected to the RX of the device on the network, and the swit ch RX must be connected to the TX of the device on th e network. MT -RJ fiber connector The 24-port 100BASE-FX MMF FE module requir es an MT -RJ optical fiber connector .
Post-installation Checklist 43 Follow the parameters defined in Ta b l e 42 for binding cables with ties. Post-installation Checklist After you install your swit ch, use the checklist in Ta b l e 43 to verify that your switch operates correctly . WAR N IN G : Confirm that you have turned off the power before checking your installation .
44 C HAPTER 2: I NSTALLING T HE S WITCH 7750.
3 C ONFIGURING THE S WITCH 7750 The following sections of this chap ter describe how to configure and boot the Switch 7750: ■ Configuring the Switch 7750 and a Local T erminal ■ Setting T ermina l.
46 C HAPTER 3: C ONFIGURING THE S WITCH 7750 Figure 32 Connection Description Dialog Box 2 Enter the name of t he new connection in the Name field and click OK . The dialog box, shown in Figure 33 displays. Select the serial port to be used from the Connect using dropdown menu.
Setting Terminal Parameters 47 Figure 34 COM1 Pr operties Dialog Box 4 Click OK . The HyperT erminal dialogue box displays, as shown in Figure 35 . Figure 35 HyperT erminal Window 5 Select Properties . 6 In the Properties dialog box, select the Settings tab, shown in Figure 36 .
48 C HAPTER 3: C ONFIGURING THE S WITCH 7750 Figure 36 Settings T ab Booting the Switch 7750 Before powering on the Switch 7750, verify that: ■ Power cords have been pr operly connected. ■ The voltage of power supply can me et the r equirements on the switch.
Booting the Switch 77 50 49 Powering up and Booting T ur n on the po wer for the Switch 7750 and run the BootROM program. The terminal displays the following infor mation: Starting.
50 C HAPTER 3: C ONFIGURING THE S WITCH 7750 The display of these messages indica tes the completion o f the switc h auto-booting. Press Enter and th e terminal screen displays: <3Com> Y ou can now begin the configuratio n for the Switch 7750.
4 M AINTAINING S OFTWAR E This chapter covers the following topics: ■ Upgrading Sof tware ■ Lost Passwords ■ Using the BOOT Menu Upgrading Software The following sections describe how to upgrade.
52 C HAPTER 4: M AINTAINING S OFTWARE Trying ... Press CTRL+K to abort Connected. 220 3Com 3CDaemon FTP Server Versi on 2.0 User(none): anonymous 331 User name ok, need password Password: xxxxxxx 230 User logged in [ftp] bin 200 Type set to I. [ftp] get sw7750003.
Upgrading Software 53 FAB96 self testing...................................... .... SDRAM Data lines Selftest.............. ...................OK! SDRAM Address lines Selftest........... ...................OK! SDRAM fast selftest......................
54 C HAPTER 4: M AINTAINING S OFTWARE Selecting the Application File for the Boot If the Switch 7750 primary image fails be cause o f a CRC error or a file format error , you can configure the system to fi n d the backup image you select to boot from.
Upgrading Software 55 The file you selected is SW7750-V300R-. app, are you sure? Yes or No(Y/N) y On reboot,SW7750-V300R-.app will become the default appl ication file to boot! 7 Ty p e Y to run the primary image: Do you want to run snec400.
56 C HAPTER 4: M AINTAINING S OFTWARE Assert at file: 'vfs_flsh.c', Line : 4549 There are 3 files in this package SRPU app file error! backup boot f ile is corrupted! Select a file to boot from! the num is 1 the num is 2 File SW7750-V300RE-8016.
Upgrading Software 57 packet. If the check fails, negat ive characters are sent and the sending program sends the packet again. 1 Enter 1 in the BOOT Menu and press Enter . The system accesses the download application file menu: 1. Set TFTP protocol parameter 2.
58 C HAPTER 4: M AINTAINING S OFTWARE Figure 37 Send File dialog box 11 Change the protocol name for the download to Xmodem . 12 Click Send . The dialog box shown in Figu re 38 displays. Figure 38 Xmodem File Send Dialog Box 13 After the download is complete, the system interface is shown, as follows: Loading .
Lost Passwords 59 A TF TP Server program is shipped on the CDROM with the Switch 7750. Before you upgrade: ■ V erify that there is a connection bet w een the TF TP server and the Switch 7750 (use the ping command.
60 C HAPTER 4: M AINTAINING S OFTWARE CPU type : MPC8245 CPU Clock Speed : 400Mhz BUS Clock Speed : 66Mhz BOOT_FLASH type : M29W040B Flash Size : 32MB Memory Size : 256MB FAB96 self testing................ .......................... SDRAM Data lines Selftest.
5 M AINTAINING H AR DWAR E This chapter covers the following topics: ■ Replacing a Power Module ■ Replacing a Power Supply ■ Replacing I/O Modules ■ Replacing th e Fan Assembly The procedures in this chapter should be performed by traine d ser vice personnel only .
62 C HAPTER 5: M AINTAINING H ARDWARE 6 Connect the power cords to separate AC power sour ces on separat e power grids or to a UPS/backup power system.
Replacing I/O Modules 63 Replacing I/O Modules T o replace an I/O module, you need: ■ An antistatic wrist strap ■ A Screwdriver T o remove a module: 1 Remove all the cables from the module to be removed.
64 C HAPTER 5: M AINTAINING H ARDWARE WARNING: If the fan fails, replace it with a new one without delay before operating the Switch 7750. Failure to do so will cause the switch to overheat.
6 T R OUBLESHOOTING This chapter covers the following topics: ■ T roubleshooting the Config uration ■ T roubleshooting Power ■ T roubleshooting the Fan ■ T roubleshooting the Mo dules The simplest way to diagnose a fault is to check the system status LEDs on the Fabric modules.
66 C HAPTER 6: T ROUBLESHOOTING Ta b l e 44 describes power LEDs on the Fabric. (continued) T roubleshooting the Fan If the fan OK LED is off, check that: ■ The fan has been installed in the corr ect position for normal communication with the backplane.
A S WITCH 7750 C ABLES This appendix covers the following types of cables and connectors: ■ Console Cable ■ AUX Cable ■ Electrical Port Connector ■ Optical Fiber Cable Connectors Console Cable Figure 39 illustrates the consol e cable and connectors.
68 A PPENDIX A: S WITCH 7750 C ABLES Figure 40 The AUX Cable Ta b l e 48 lists the AUX cable pin-outs. Electrical Port Connector Figure 41 illustrates the RJ-45 connector .
Optical Fiber Cable Connectors 69 Tx = Send data Rx = Receive da ta BI = I-directional data. Ta b l e 50 lists RJ-45 MDI-X Port Pin-outs. Optical Fiber Cable Connectors Figure 42 illustrates the SC optical fiber cable connector .
70 A PPENDIX A: S WITCH 7750 C ABLES Figure 43 . illustrates the MT -RJ fi ber optic cable connector . Figure 43 The MT -RJ Fiber Connector Figure 44 illustrates the LC connector .
B O BTAINING S UPPORT FOR YOUR S WITCH Register Y our Pr oduct to Gain Service Benefits T o take advantage of warranty and othe r se rvice benefits, you must first register your product at http://eSupport.3com.com/ . 3Com eSupport services ar e based on accounts that you create or have author ization to access.
72 A PPENDIX B: O BTAINING S UPPORT FOR YOU R S WITCH Software Upgrades ar e the software releases that follow the software version included with your original product. In order to access upgrades and r elated documentation you must first pu rchase a service contract from 3Com or your res e ll e r .
Telephone Technical Support and Repair 73 Europe, Middle East, and Africa T e lephone T e chnical Support and Repair From anywhere in these regions, call: +44 (0)1442 435529 From the following countri.
74 A PPENDIX B: O BTAINING S UPPORT FOR YOU R S WITCH.
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