Cisco MDS 9148S Multilayer Switch Hardware Installation Guide

Connecting the Console Port to a PC

You can connect the console port to a PC serial port for local administrative access to the Cisco MDS 9148S switch.

Note The PC must support VT100 terminal emulation. The terminal emulation software—frequently a PC application such as HyperTerminal Plus—makes communication between the Cisco MDS 9148S switch and your PC possible during setup and configuration.

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

Step 1 Configure the baud rate and character format of the PC terminal emulation program to match the following management port default characteristics:

• 9600 baud
• 8 data bits
• 1 stop bit
• No parity

Step 2 Connect the supplied RJ-45 to DB-9 female adapter or RJ-45 to DB-25 female adapter (depending on your PC connection) to the PC serial port.

Step 3 Connect one end of the supplied console cable (a rollover RJ-45 to RJ-45 cable) to the console port. (See Figure 1-1.) Connect the other end to the RJ-45 to DB-9 (or RJ-45 to DB-25) adapter at the PC serial port.

Connecting a Modem to a Console Port

Caution Do not connect the console port to a modem while the switch is booting. Connect the console port to a modem either before powering the switch on or after the switch has completed the boot process.

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To connect the console port to a modem before the switch is powered on, follow these steps:

Step 1 Connect the supplied console cable (a rollover RJ-45 to RJ-45 cable) to the console port (see Figure 1-1).

Step 2 Connect the other end of the console cable to the supplied RJ-45 to DB-25 adapter.

Step 3 Connect the RJ-45-to-DB-25 adapter to the DB-25 port on the modem.

Step 4 Power on the switch. The switch boots automatically, and the following default console port characteristics are applied to the modem connection:

• 9600 baud
• 8 data bits
• 1 stop bit
• No parity
• Default initialization string (ATE0Q1&D2&C1S0=1\015) if previously configured

Note For instructions on how to change these settings, see the Cisco Fabric Manager Fundamentals Configuration Guide for instructions on how to change these settings.

To connect the console port to a modem after the switch is powered on, follow these steps:

Step 1 Ensure that the system has completed booting and the system image is running.

Step 2 Connect the supplied console cable (a rollover RJ-45 to RJ-45 cable) to the console port (see Figure 1-1).

Step 3 Connect the other end of the console cable to the supplied RJ-45 to DB-25 adapter.

Step 4 Connect the RJ-45-to-DB-25 adapter to the DB-25 port on the modem.

Step 5 Initialize and configure the modem as specified in the Cisco Fabric Manager Fundamentals Configuration Guide and the Cisco NX-OS Fundamentals Configuration Guide.

Removing and Installing SFP Transceivers

Caution Removing and installing an SFP transceiver can shorten its useful life. Do not remove and insert SFP transceivers more often than is absolutely necessary.
We recommend disconnecting cables before installing or removing SFP transceivers to prevent damage to the cable or transceiver.

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Note Use only Cisco SFP transceivers on the Cisco MDS 9148S 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.

The Cisco MDS 9148S switch supports SFP transceivers with the following two types of latching devices:

• Mylar tab latch (Figure 1-2)
• Bale-clasp latch (Figure 1-3)

Figure 1-2 SFP Transceiver with Mylar Tab Latch

Figure 1-3 SFP Transceiver with Bale-Clasp Latch

Installing an SFP Transceiver

To install an SFP transceiver, follow these steps:

Step 1 Attach an ESD-preventive wrist strap and follow its instructions for use.

Step 2 Remove the dust cover from the port cage.

Step 3 Remove the dust cover from the port end of the transceiver.

Step 4 Insert the transceiver into the port:

• If the transceiver has a mylar tab latch, orient the transceiver with the tab on the bottom, and then gently insert the transceiver into the port until it clicks into place.
• If the transceiver has a bale-clasp latch, orient the transceiver with the bale clasp on the bottom, close the bale clasp by pushing it up and over the transceiver, and then gently insert the transceiver into the port until it clicks into place.

Step 5 Insert or leave the dust plug in the cable end of the transceiver if a cable is not being installed in the transceiver.

Removing an SFP Transceiver

To remove an SFP transceiver, follow these steps:

Step 1 Attach an ESD-preventive wrist strap and follow its instructions for use.

Step 2 Perform these steps if cable is installed in the transceiver:

a. Record the cable and port connections for later reference.

b. Press the release latch on the cable, grasp the connector near the connection point, and gently pull the connector from the transceiver.

c. Insert a dust plug into the connector on the cable.

d. Insert a dust plug into the cable end of the transceiver.

Tip If the transceiver does not remove easily in the next step, push the transceiver all the way back in and then ensure that the latch is in the correct position before continuing.

Step 3 Remove the transceiver from the port:

• If the transceiver has a mylar tab latch, gently pull the tab straight out (do not twist), and then pull the transceiver out of the port.
• If the transceiver has a bale-clasp latch, open the clasp by pressing it downwards, and then pull the transceiver out of the port.

Step 4 Insert a dust cover into the port end of the transceiver and place the transceiver on an antistatic mat or into a static shielding bag if you plan to return it to the factory.

Step 5 Protect the optical cage by inserting a clean cover if another transceiver is not being installed.

Removing and Installing Cables into SFP Transceivers

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 one inch if there is no tension in the cable, or two inches if there is tension in the cable.

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Installing a Cable into an SFP Transceiver

Caution To prevent possible damage to the cable or transceiver, install the transceiver in the port before installing the cable in the transceiver.

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To install a cable into a transceiver, follow these steps:

Step 1 Attach an ESD-preventive wrist strap and follow its instructions for use.

Step 2 Remove the dust cover from the connector on the cable.

Step 3 Remove the dust cover from the cable end of the transceiver.

Step 4 Align the cable connector with the transceiver and insert the connector into the transceiver until it clicks into place. (See Figure 1-4).

Figure 1-4 Connecting the LC-Type Cable to a Fibre Channel Port

For instructions on verifying connectivity, see the Cisco Fabric Manager Fundamentals Configuration Guide and the Cisco NX-OS Fundamentals Configuration Guide.

Removing a Cable from an SFP Transceiver

Caution When pulling a cable from a transceiver, grip the body of the connector. Do not pull on the jacket sleeve, because this can compromise the fiber-optic termination in the connector.

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Caution If the cable does not remove easily, ensure that any latch present on the cable has been released before continuing.

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To remove the cable, follow these steps:

Step 1 Attach an ESD-preventive wrist strap and follow its instructions for use.

Step 2 Press the release latch on the cable, grasp the connector near the connection point, and gently pull the connector from the transceiver.

Step 3 Insert a dust plug into the cable end of the transceiver.

Step 4 Insert a dust plug onto the end of the cable.

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 it should be kept below 0.35 dB.

Follow these 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. This prevents fingerprints and other contamination of the connectors.
• 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 your site’s fibre-optic connection cleaning procedures.
• 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.