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C H A P T E R

 Installing the Catalyst 3920 3-1

3

Installing the Catalyst 3920

This chapter explains the process you should follow to install the Catalyst 3920 Token Ring Switch.

Planning for Installation

Read this section carefully before installing the Catalyst 3920 Token Ring Switch. It contains the
information on preinstallation planning.

Note

Before installing the Catalyst 3920, read the “Safety Warnings” appendix.

Warning

Read the installation instructions before you connect the system to its power source.

If you have a large network, we recommend that you create a sketch of the network to which you
will add one or more Catalyst 3920 switches. Include major network elements such as hubs and
concentrators, servers, bridges, and routers.

To plan for the installation of a Catalyst 3920, obtain all connectivity and physical planning
information about the network segments to which you will attach. In addition, if you are planning to
use permanently installed telecommunications wiring, you should have information about the
cabling installation that will allow you to determine the termination points of every cable, the cable
type, connector type (if any), and the distance between termination points. Building floorplans and
telecommunications closet layouts are also useful.

Cabling Used Between Devices

Devices attached to the RJ-45 jacks on the front of the Catalyst 3920 should conform to the cabling
rules established in the EIA/TIA 568A and ISO/IEC 11801:1995. Straight-through cables should
always be used for the Token Ring ports. Because all ports operate at 120-ohm, no
impedance-matching balun or filtering is required for UTP or STP.

For more information about cabling distances and specifications, refer to the “Cable and Pin
Information” appendix for cable design specifications.

Summary of Contents for Catalyst 3920

Page 1: ...tain all connectivity and physical planning information about the network segments to which you will attach In addition if you are planning to use permanently installed telecommunications wiring you should have information about the cabling installation that will allow you to determine the termination points of every cable the cable type connector type if any and the distance between termination p...

Page 2: ... Summary The basic installation steps are as follows Unpacking the Catalyst 3920 Gathering Other Materials You Will Need Setting Up the Catalyst 3920 Cabling the Catalyst 3920 Cabling a Catalyst Stack Configuration Powering On the Catalyst 3920 Unpacking the Catalyst 3920 To unpack the Catalyst 3920 follow these steps Step 1 Open the carton Along with the Catalyst 3920 Token Ring Switch User Guide...

Page 3: ...ines are provided to ensure your safety The unit should be mounted at the bottom of the rack if it is the only unit in the rack When mounting the unit in a partially filled rack load the rack from the bottom to the top with the heaviest component in the bottom of the rack If the rack has stabilizing devices install the stabilizers before mounting or servicing the unit in the rack Rack Mounting the...

Page 4: ... INS ACT INS ACT INS ACT INS ACT INS ACT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 TX RX AT STACK PWR MODE RESET SYSREQ FAULT 10147 1 INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT INS ACT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ...

Page 5: ...wall cables to connect devices to Token Ring ports on the Catalyst 3920 If you will use in the wall cables building wiring go to the Connecting Devices to the Token Ring Ports Using Building Wiring section Step 1 Using the Cabling Chart provided by your network administrator as a guide connect the cables between the Catalyst 3920 and the other devices Depending on the cable type you use the device...

Page 6: ... or that you disconnect the switches update them individually and then reconnect them to the stack Note Before you create a stack or add to a stack if any of the Catalyst 3920 units need software downloaded download the software before cabling the Catalyst 3920 units together Catalyst Stack Back to Back Connection Keep the following in mind when you install two Catalyst switches in a back to back ...

Page 7: ...hes and Catalyst Matrix in a rack or cabinet use the following instructions to cable the units together Step 1 Attach one end of the stack port cable to Port 1 recommended port to use first on the Catalyst Matrix Figure 3 6 It does not matter which end of the cable is used and it does not matter if the Catalyst switch or Catalyst Matrix is powered on or off Caution When installing the stack port c...

Page 8: ...tional is used on the phase conductors all current carrying conductors Warning This equipment is intended to be grounded Ensure that the host is connected to an earth ground during normal use Warning This unit might have more than one power cord To reduce the risk of electric shock disconnect the two power supply cords before servicing the unit To power on the Catalyst 3920 and to verify that it i...

Page 9: ...alyst stack units Step 1 Using the supplied power cables plug the female end of the cables into the AC receptacles on the Catalyst 3920 or each Catalyst Matrix module For the Catalyst 3920 the receptacle is on the left side of the back panel For the Catalyst Matrix it is at the lower right hand corner on the front panel of each module Step 2 Plug the male end of the power cords into a properly gro...

Page 10: ...Powering On the Catalyst 3920 Catalyst 3920 Token Ring Switch User Guide 3 10 ...

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