S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
B-20
Cisco MDS 9200 Series Hardware Installation Guide
OL-19588-01
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
OMI
4
–
–
dB
–
Dispersion Penalty at
15.5 miles (25 km)
–
–
–
3
dB
–