Cisco Systems MDS 9216 User Manual

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CHAPTER

3

Connecting the Cisco MDS 9216
Switch

The Cisco MDS 9216 Switch provides the following types of ports:

• CONSOLE port (Interface Module): An RS-232 port that you can use to

create a local management connection.

• COM1 port (Interface Module): An RS-232 port that you can use to connect

to an external serial communication device such as a modem.

• MGMT 10/100 Ethernet port (Interface Module): An Ethernet port that you

can use to access and manage the switch by IP address, such as through the
CLI or Fabric Manager.

• Fibre Channel ports (Supervisor and Switching Modules): Fibre Channel

ports that you can use to connect to the SAN, or for in-band management.

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Caution When running power and data cables in overhead or sub-floor cable trays, we

strongly recommend that power cables and other potential noise sources be
located as far away as practical from network cabling that terminates on Cisco
equipment. In situations where long parallel cable runs cannot be separated by at
least 3.3 ft (1 m), we recommend shielding any potential noise sources by housing
them in a grounded metallic conduit.

Cisco MDS 9216 Switch Hardware Installation Guide

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Chapter 3 Connecting the Cisco MDS 9216 Switch

Preparing for Network Connections

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This chapter provides the following information:

• Preparing for Network Connections, page 3-2

• Connecting to the Console Port, page 3-2

• Connecting to the COM1 Port, page 3-4

• Connecting to the MGMT 10/100 Ethernet Port, page 3-6

• Connecting to a Fibre Channel Port, page 3-7

Preparing for Network Connections

When preparing your site for network connections to the Cisco MDS 9216
Switch, consider the following for each type of interface, and gather all the
required equipment before connecting the ports:

• Cabling required for each interface type

• Distance limitations for each signal type

• Additional interface equipment required

Connecting to the Console Port

The console port, labeled “Console”, is an RS-232 port with an RJ-45 interface
(see Figure 3-1 on page 3-3). The console port is an asynchronous (async) serial
port; any device connected to this port must be capable of asynchronous
transmission.

We recommend using this port to create a local management connection to set the
IP address and other initial configurationsettings before connecting the switch to
the network for the first time.

Note Connecting the console port to a modem is supported for switches running Cisco

MDS SAN-OS Release 1.2(2a) or later.
Although the console port can be used to connect to a modem, the COM1 port is
recommended for this purpose.

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Chapter 3 Connecting the Cisco MDS 9216 Switch

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Caution If you do want to connect the console port to a modem, do not connect it while

the switch is booting; connect either before powering the switch on or after the
switch has completed the boot process.

You can use the console port to perform the following functions:

• Configure the Cisco MDS 9500 from the CLI

• Monitor network statistics and errors

• Configure SNMP agent parameters

• Download software updates

Note To connect the console port to a computer terminal, the computer must support

VT100 terminal emulation. The terminal emulation software—frequently an
application such as HyperTerminal or Procomm Plus—makes communication
between the Cisco MDS 9216 Switch and computer possible during setup and
configuration.

Connecting to the Console Port

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Figure 3-1 Connecting to the Console Port on the Cisco MDS 9216 Switch

MGMT 10/100

FAN

STATUS

FAN-MOD-2

MDS 9216

1

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

2

CONSOLE

SYSTEM

STATUS

RESET

COM1

91679

Console

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3-3

Connecting to the COM1 Port

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To connect the console port to a computer terminal, follow these steps:

Step 1 Configure the terminal emulator program to match the following default port

characteristics: 9600 baud, 8 data bits, 1 stop bit, no parity.

Step 2 Connect the supplied RJ-45 to DB-9 female adapter to the computer serial port.

We recommend using the adapter and cable provided with the switch.

Step 3 Connect the console cable (a rollover RJ-45 to RJ-45 cable) to the console port

(see Figure 3-1) and to the RJ-45 to DB-9 adapter at the computer serial port.

Note For configuration instructions, refer to the Cisco MDS 9000 Family Configuration

Guide.

Connecting to the COM1 Port

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Note The COM1 port is not supported for connection to a console.

The COM1 port (labeled “COM1”) is an RS-232 port with a DB-9 interface. You
can use it to connect to an external serial communication device such as a modem.
For information about how to turn off hardware flow control, refer to the Cisco
MDS 9000 Family Configuration Guide.

Note Connecting the COM1 port to a modem is supported for switches running Cisco

MDS SAN-OS Release 1.2(1a) or later.

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Chapter 3 Connecting the Cisco MDS 9216 Switch

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Figure 3-2 Connecting to the COM1 Port on the Cisco MDS 9216 Switch

1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

FAN

STATUS

FAN-MOD-2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

2

To connect the COM1 port to a modem, follow these steps:

MDS 9216

Connecting to the COM1 Port

MGMT 10/100

CONSOLE

SYSTEM

STATUS

RESET

COM1

99283

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Step 1 Connect the modem to the COM1 port using the adapters and cables provided

with the accessory kit, as follows: connect the DB-9 serial adapter labeled for use
with the Cisco MDS 9216 Switch to the COM1 port, connect the RJ-45 to DB-25
modem adapter to the modem, then connect the adapters using the RJ-45 to RJ-45
rollover cable (or equivalent crossover cable).

Note Use the green DB-9 adapter that is specifically labeled for use with the

Cisco MDS 9216 Switch. If this adapter is not included in the accessory
kit, you can request one from your customer service representative.

Step 2 If the default settings for the COM1 port have been modified, refer to the Cisco

MDS 9000 Family Configuration Guide for information regarding verifying and

resetting the default settings.

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Chapter 3 Connecting the Cisco MDS 9216 Switch

Connecting to the MGMT 10/100 Ethernet Port

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The default COM1 settings are as follows:

line Aux:
Speed: 9600 bauds
Databits: 8 bits per byte
Stopbits: 1 bit(s)
Parity: none
Modem In: Enable
Modem Init-String ­default : ATE0Q1&D2&C1S0=1\015
Statistics: tx:17 rx:0 Register Bits:RTS|DTR

Connecting to the MGMT 10/100 Ethernet Port

Caution To prevent an IP address conflict,do not connect the MGMT 10/100 Ethernet port

to the network until the initial configuration is complete. For configuration
instructions, refer to the Cisco MDS 9000 Family Configuration Guide.

3-6

The MGMT 10/100 Ethernet port (labeled MGMT 10/100) is autosensing and has
an RJ-45 interface (Figure 3-3 on page 3-7). You can use this port to access and
manage the switch by IP address, such as through Fabric Manager.

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Chapter 3 Connecting the Cisco MDS 9216 Switch

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Figure 3-3 Connecting to the MGMT 10/100 Ethernet Port on the Cisco MDS

9216 Switch

1

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FAN

STATUS

FAN-MOD-2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

2

To connect the MGMT 10/100 Ethernet port to an external hub, switch, or router,
follow these steps:

MDS 9216

Connecting to a Fibre Channel Port

MGMT 10/100

CONSOLE

SYSTEM

STATUS

RESET

COM1

99329

MGMT 10/100

Step 1 Connect the appropriate modular cable to the MGMT 10/100 Ethernet port:

• Use modular, RJ-45, straight-through UTP cables to connect the 10/100

management port to an Ethernet switch port or hub.

• Use a cross-over cable to connect to a router interface.

Step 2 Connect the other end of the cable to the device.

Connecting to a Fibre Channel Port

The Fibre Channel ports on the switch modules are compatible with LC-type
fiber-optic SFP transceivers and cables (see Figure 3-4 on page 3-9). You can use
the Fibre Channel ports to connect to the SAN or for in-band management. For
information about configuring the switch for inband management, refer to the
Cisco MDS 9000 Family Configuration Guide.

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Connecting to a Fibre Channel Port

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The Cisco MDS 9000 Family supports both Fibre Channel and Gigabit Ethernet
protocol for SFP transceivers. Each transceiver must match the transceiver on the
other end of the cable, and the cable must not exceed the stipulated cable length
for reliable communications. Refer to the release notes for the list of specific
supported SFP transceivers. SFP transceivers can be ordered separately or with
the Cisco MDS 9216 Switch.

Chapter 3 Connecting the Cisco MDS 9216 Switch

Warning

Caution Wear an ESD-preventive wrist strap connected to the chassis when handling

Invisible laser radiation may be emitted from disconnected fibers or
connectors. Do not stare into beams or view directly with optical instruments.

Statement 1051

transceivers. Keep optical connectors covered when not in use, and do not touch
connector ends. Avoid removing and inserting transceivers more often than
necessary.

Caution To prevent damage to the fiber optic cables, do not place more tension on them

than the rated limit and do not bend to a radius of less than 1 inch if there is no
tension in the cable, or 2 inches if there is tension in the cable.

Note Use only Cisco SFP transceiverson the Cisco MDS 9216 Switch. Each Cisco SFP

transceiver is encoded with model information that enables the switch to verify
that the SFP transceiver meets the requirements for the switch. For instructions
specificto the transceiver type, refer to the Installation Notes for the Cisco Small
Form-Factor Pluggable Modules provided with the transceiver.

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Chapter 3 Connecting the Cisco MDS 9216 Switch

Connecting to a Fibre Channel Port

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Figure 3-4 Connecting an LC-Type Cable to an SFP Transceiver

1

2

94986

1 LC plug of fiber optic cable 2 SFP transceiver

Installing an SFP Transceiver and Fiber Optic Cable

To connect an SFP transceiverandfiber optic cable to a Fibre Channel port, follow
these steps:

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Step 1 Verify that the transceiver and cable type both have LC-connectors and are the

required type for longwave or shortwave transmission and the required distances.
The transceiver label generally lists the model and wavelength.

Step 2 Remove the dust plug from the port end of the transceiver by pressing the trigger

on top of the plug to release the latch (clicks open) and pulling the plug out.

Step 3 Align and insert the transceiver into the port until the latch clicks. Transceivers

are keyed to prevent incorrect installation; if it does not slide in easily, verify it is
correctly oriented.

Step 4 Remove the dust plugs from the cable and the cable-end of the transceiver.
Step 5 Align and insert the cable end into the transceiver (see Figure 3-4) until the latch

clicks. Cables are keyed to prevent incorrect installation. If the cable does not
slide in easily, verify it is correctly oriented.

Step 6 Connect the other end of the cable to the external end system or switch.

For instructions on verifying connectivity on a module port, refer to the
Cisco MDS 9000 Family Configuration Guide.

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Chapter 3 Connecting the Cisco MDS 9216 Switch

Connecting to a Fibre Channel Port

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Removing an SFP Transceiver and Fiber Optic Cable

Caution When pulling a cable from a transceiver, grip the body of the connector. Do not

pull on the jacket sleeve, since this can compromise the fiber-optictermination in
the connector.

To remove an SFP transceiver and fiber optic cable from a Fibre Channel port,
follow these steps:

Step 1 Press the latch on top of the SFP to release the lock and gently pull the transceiver

from the port.

Step 2 If desired, remove the cable from the transceiverbypressing the latch on the cable

and pulling the cable from the transceiver.

Step 3 Cover the ends of the transceiver and the cable with the appropriate dust caps.

Maintaining SFP Transceivers and Fiber Optic Cables

SFP transceivers and fiber optic cables must be kept clean and dust-free to
maintain high signal accuracy and prevent damage to the connectors. Attenuation
(loss of light) is increased by contamination, and should be below 0.35 dB.

Maintenance guidelines:

• SFP transceivers are static sensitive. To prevent ESD damage, wear an

ESD-preventive wrist strap that is connected to the chassis.

• Do not remove and insert a transceiver more often than necessary. Repeated

removals and insertions can shorten its useful life.

• Keep all optical connections covered when not in use. If they become dusty,

clean before using to prevent dust from scratching the fiber optic cable ends.

• Do not touch ends of connectors to prevent fingerprints and other

contamination.

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Chapter 3 Connecting the Cisco MDS 9216 Switch

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• Clean regularly; the required frequency of cleaning depends upon the

environment. In addition, clean connectors if they are exposed to dust or
accidentally touched. Both wet and dry cleaning techniques can be effective;
refer to the instructions provided with the SFP transceiver.

• Inspect routinely for dust and damage. If damage is suspected, clean and then

inspect fiber ends under a microscope to determine if damage has occurred.

Connecting to a Fibre Channel Port

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Connecting to a Fibre Channel Port

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Chapter 3 Connecting the Cisco MDS 9216 Switch

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Cisco MDS 9216 Switch Hardware Installation Guide

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