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B-20
Cisco MDS 9200 Series Hardware Installation Guide
OL-17468-02
Appendix B Technical Specifications
SFP and SFP+ Transceiver Specifications
Table B-36 provides the optical specifications for Cisco 4-Gbps CWDM SFP transceivers.
Note • In typical point-to-point deployments, all wavelengths have a minimum reach of 24.8 miles (40 km).
• Parameters are specified over temperature and at end of life unless otherwise noted.
• When shorter distances of single-mode fiber are used, it is necessary to insert an in-line optical
attenuator in the link to avoid overloading the receiver.
• A maximum of 24 4-Gbps CWDM SFPs are supported in a single MDS switching module.
• When interoperating a Cisco 4-Gbps CWDM SFP transceiver with a Cisco 1/2-Gbps CWDM
transceiver, the speed of ports on the Cisco 4-Gbps CWDM SFP transceiver must be manually
configured to 1-Gbps or 2-Gbps.
For information about safety, regulatory, and standards compliance, refer to the Regulatory Compliance
and Safety Information for the Cisco MDS 9000 Family.
Table B-36 Optical Specification for Cisco 4-Gbps CWDM SFP Transceivers
Parameters Symbol Minimum Typical Maximum Units Notes/Conditions
Transmitter Center
Wavelength
λ
c
(x-6) x x+6 nm Available center
wavelengths are
1470, 1490,
1510, 1530,
1550, 1570,
1590, and 1610
nm
Side-mode
Suppression Ratio
SMSR 30 – – dB –
Transmitter Optical
Output Power
P
out
1.0 – 5.0 dBm Average power
coupled into
single-mode fiber
Receiver Optical
Input Power (BER
<10-12 with PRBS
2-23-1)
P
in
-15.7 – 0.0 dBm 140°F (60°C)
case temperature
Link Budget – 17.8 – – dB –
Receiver Optical
Input Wavelength
λ
in
1450 – 1620 nm –
Transmitter
Extinction Ratio
OMI4––dB–
Dispersion Penalty at
15.5 miles (25 km)
–––3dB–