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This appendix includes the following technical specifications for the Cisco MDS 9250i switch:
Table B-1 lists the environmental specifications for the Cisco MDS 9250i switch.
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Humidity (RH), ambient (noncondensing) nonoperating and storage |
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Table B-2 lists the physical specifications for the Cisco MDS 9250i switch.
This section includes the following information:
Table B-3 lists the specifications for the Cisco MDS 9250i switch AC input power supply.
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Table B-4 provides a sample calculation of power for the Cisco MDS 9250i switch AC input power supply.
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Tip To prevent a loss of input power, ensure that the total maximum load on each circuit supplying the power supply is within the current ratings of the wiring and breakers.
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For connecting the Cisco MDS 9250i switch AC power supplies to the site power source, follow these basic guidelines:
The Cisco MDS 9250i switch is compatible with SFP transceivers and cables that have LC connectors. Each transceiver must match the transceiver on the other end of the cable in terms of wavelength, and the cable must not exceed the stipulated cable length for reliable communications.
Cisco SFP transceivers provide the uplink interfaces, laser transmit (TX), and laser receive (RX), and they support 850 to 1610 nm nominal wavelengths, depending upon the transceiver.
Use only Cisco SFP transceivers on the Cisco MDS 9250i 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 the list of supported SFP transceivers, see the release notes.
Use only genuine Cisco SFP+ transceivers in Cisco MDS series switches. Each Cisco SFP+ transceiver is encoded with serial number, vendor name, and other parameters that enable Cisco NX-OS to verify that the transceiver meets the requirements of the switch. If discrepancies are found, the SFP+ will be allowed to function, if possible, but will cause a warning syslog message to be generated. Cisco TAC does not support switch ports populated with non-Cisco SFP+ transceivers.
For details of SFP transceivers see the data sheet at the following location:
http://www.cisco.com/en/US/prod/collateral/ps4159/ps6409/ps4358/product_data_sheet09186a00801bc698.html
This section provides the following information:
For information about safety, regulatory, and standards compliance, see the Regulatory Compliance and Safety Information for the Cisco MDS 9000 Family.
Table B-6 lists the Fibre Channel SFP+ transceivers available through Cisco Systems for the Cisco MDS 9250i switch.
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Table B-7 summarizes cabling specifications for 16 Gbps.
Table B-7 Cisco 16-Gbps Fibre Channel SFP+ Cabling Specifications
Table B-8 provides the optical parameters for 16 Gbps.
Table B-8 Optical Parameters for 16 Gbps
Table B-9 provides information on operating and storage temperature ranges
Table B-10 summarizes cabling specifications for 8 Gbps.
Table B-10 Cisco 8-Gbps Fibre Channel SFP+ Cabling Specifications
Table B-11 provides the optical parameters for 8 Gbps.
Table B-11 Optical Parameters for 8 Gbps
Table B-12 provides information on operating and storage temperature ranges for 8 Gbps.
Table B-13 provides the optical specifications for CWDM SFP transceivers. CWDM SFP transceivers have an optical link budget of 28 decibels (db).
Note The parameters are specified over temperature and at end of life unless otherwise noted.
Note When shorter distances of single-mode fiber are used, it might be necessary to insert an inline optical attenuator in the link to avoid overloading the receiver.
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Available center wavelengths: |
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