Cisco WS-C1511 Manuale di istruzioni

Doc. No.

Cisco Systems, Inc.

InstallingA/BPortCards

78-1265-01

Product Numbers: WS-C1511=, WS-C1513=, and WS-C1514=

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It occurs when

electronic components are improperly handled and can result in complete or intermittent failures.

Always follow ESD-prevention procedures when removing and replacing components. Ensure that

the chassis is electrically connected to earth ground using an ESD mat or a ground wire. Wear an

ESD-preventive wrist strap, ensuring that it makes good skin contact. To safely channel unwanted

ESD voltages to ground, connect the clip to the surface of an unpainted chassis frame. To properly

guard against ESD damage and shocks, the wrist strap and cord must operate effectively. If no wrist

strap is available, ground yourself by touching the metal part of the chassis.

Caution For safety, periodically check the resistance value of the antistatic strap, which should be

between 1 and 10 mega ohms.

About this Publication

This publication includes the procedures required to install Copper Distributed Data Interface

multilevel transmission (CDDI/MLT-3) and Fiber Distributed Data Interface (FDDI) A/B port cards

in the workgroup switch and concentrator models that use this card. The equal sign (=) appended to

the product numbers designates these products as spare parts.

Following are the sections and procedures included:

•Cabling Requirements

—FDDI

—CDDI

•A/B Port Cards

—Port Card Installation

—Port Card Removal

2 Installing A/B Port Cards

Cabling Requirements

Following are the cabling requirements for the A/B port cards.

FDDI The multimode FDDI connectors on the switch accept 62.5/125-micron or 50/125-micron

multimode ﬁber with standard FDDI media interface connectors (MICs). The single-mode

connectors accept 8.7 to 10/125-micron single-mode ﬁber with standard FDDI ST-type connectors.

Table 1 lists FDDI distance speciﬁcations and Figure 1 and Figure 2 illustrate single-mode and

multimode connectors, respectively.

Table 1 FDDI Maximum Transmission Distances

Figure 1 Single-Mode FDDI Interface Connector—ST Type

Warning Invisible laser radiation may be emitted from the aperture ports of the single-mode FDDI

card when no cable is connected. Avoid exposure and do not stare into open apertures.

Figure 2 Multimode FDDI Interface Connector—MIC Type

CDDI Check all existing cables to ensure that you have the proper connectors (modular RJ-45) and for

conformance with the following CDDI/MLT-3 distance requirements and:

•Data-grade unshielded twisted-pair (UTP) wiring—Electronics Industries

Association/Telecommunications Industries Association (EIA/TIA)-568 category 5, data-grade

cableisrequiredforCDDIinstallations.ThetotallengthofdatagradeUTPcablefromtheswitch

to another switch, station, or CDDI concentrator must not exceed 330 feet (100.6 m), including

patch cords and cross-connect jumpers.

•Shielded twisted-pair (STP) wiring—You must use IBM Type 1 STP wiring for your CDDI

installation. The total length of STP cable measured from the adapter or media access unit

(MAU) to the switch must not exceed 330 feet (100.6 m).

Transceiver Type Maximum Distance Between Stations

Single-mode 18.6 miles (up to 30 km)

Multimode 1.2 miles (up to 2 km)

H1348a

H1349a

Installing A/B Port Cards 3

A/B Port Cards

Note You must use high-performance, category 5, data-grade, modular cross-connect cables for

external CDDI connections.

When you plan your CDDI installation, remember the following:

•Use cross-connect (patch) panels which comply with the EIA/TIA 568B category 5 wiring

standard.

•Do not use bridge taps.

•Do not use protection coils.

•Do not share services (such as voice and data on the same cable). CDDI uses two of the four pairs

in the twisted-pair cable. The remaining two pairs cannot be used for other applications.

•Do not exceed the maximum cable length for CDDI UTP and STP of 330 feet (100.6 m).

A/B Port Cards

The A/B port cards are options that provide two additional CDDI/MLT-3 or FDDI ports.

Caution During these procedures, the concentrator must be turned off, thereby disrupting the ring.

The A/B card slot supports a single media access control (MAC), dual attachment station (DAS)

with dual homing conﬁguration for FDDI (can also be used as single attachment station [SAS]). The

slot also accepts CDDI/MLT-3 cards for UTP and STP connections.

Figure 3 shows the following three models of A/B port cards:

•WS-C1511—Multimode FDDI with FDDI MICs

•WS-C1513— CDDI/MLT-3 with category 5 UTP modular RJ-45 connectors

•WS-C1514—Single-mode FDDI with standard FDDI ST-type connectors

Figure 3 FDDI and CDDI A/B Port Cards

H2111

1 (WS-C1511)

2 (WS-C1513)

3 (WS-C1514)

4 Installing A/B Port Cards

A/B Port Cards

Port Card Installation

Following is the procedure for installing an A/B port card:

Step 1 Unplug the power cable but, to channel ESD voltages to ground, ground the chassis and

attach an ESD-preventive wrist strap.

Caution To prevent damage, never install or remove a port card with power applied to the

concentrator.

Step 2 Remove the two screws holding the blank plate to the concentrator and remove the plate.

Caution To prevent damage to the FDDI transceivers on the FDDI port card (in step 3), gently press

down on the port card as you insert it so that the transceivers clear the chassis. The ﬁt is snug.

Step 3 Slide the port card into the slot in the concentrator. Make sure the metal base plate on the

card slides under the guides in the concentrator. (See Figure 4.)

Step 4 Secure the card to the concentrator using the two Phillips screws supplied with the port

card.

Step 5 Reinsert the power cable.

Figure 4 Installing the A/B Port Card

Port Card Removal

Following is the procedure for removing an A/B port card:

Step 1 Unplug the power cable but, to channel ESD voltages to ground, ground the chassis and

attach an ESD-preventive wrist strap.

Caution To prevent damage, never install or remove a port card with power applied to the

concentrator.

Step 2 Remove the two screws that secure the port card to the concentrator. (See Figure 5.)

BYPASS

ADMIN

10BASE-T

POWER

110-120

1.0/2.0 A

50-60 Hz

H2113

Slide base plate between

guide rails on both sides

Base plate

Installing A/B Port Cards 5

A/B Port Cards

Figure 5 Removing the A/B Port Card

Caution To prevent damage to the FDDI transceivers on the FDDI port card (in step 3), gently press

down on the port card as you remove it so that the transceivers clear the chassis. The ﬁt is snug.

Step 3 Gently pry the A/B port card out of the slot with a ﬂat-blade screwdriver. (See Figure 5.)

After traveling approximately 1/2 inch, the card will be free from the connector and will

slide out easily.

Step 4 Reinsert the power cable.

BYPASS

ADMIN

10BASE-T

POWER

110-120

1.0/2.0 A

50-60 Hz

Insert screwdriver

and gently pry out

H2110

1A 2B

6 Installing A/B Port Cards

A/B Port Cards

Note For technical assistance, contact a service representative or the Cisco Technical Assistance

Center (TAC) at 800 553-2447, 415 903-7209, or [email protected]. For upgrade or product

information, contact the Customer Response Center at 800 553-6387, 415 903-7208, or

[email protected].

Customer Information Online

Cisco Systems’ Customer Information Online (CIO) system provides online information and electronic

services to Cisco direct customers and business partners. Basic CIO services include general Cisco

information, product announcements, descriptions of service offerings, and download access to public

and authorized ﬁles, including release notes, and software. Maintenance customers receive a much

broader offering, including technical notes, the bug database, and electronic mail access to the TAC.

(Maintenance customers must have authorization from their Cisco contract administrators to receive

these privileges.)

For dialup or Internet users, CIO supports Zmodem, Kermit, Xmodem, FTP PUT, Internet e-mail,

Telnet, rlogin, and fax download options. Internet users also can retrieve ﬁles from CIO using FTP.

Registration for CIO is handled on line. To reach CIO via the Internet, use Telnet or FTP to

cio.cisco.com (131.108.89.33). To reach CIO by dialup, use 415 903-8070 (Mountain View,

California) or 33 1 6446 4082 (Paris, France).

This document can be used in conjunction with the Catalyst Workgroup Switch User Guide or CDDI/FDDI Workgroup Concentrator User Guidepublications.

Access Without Compromise, Catalyst, CiscoFusion, CiscoWorks, Internetwork Operating System, IOS, Netscape, The Packet, SMARTnet, UniverCD, Workgroup Director, and

Workgroup Stack are trademarks, and Cisco Systems and the Cisco logo are registered trademarks of Cisco Systems, Inc. All other products or services mentioned in this document are

the trademarks, service marks, registered trademarks, or registered service marks of their respective owners.

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