Datasheet

Data Sheet
© 2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 20 of 26
Part Number Description Color
DS-CWDM-1610= 1610 nm CWDM 1/2-Gbps Fibre Channel SFP Brown
Cisco 4-Gbps CWDM SFPs
Technical Specifications for Cisco 4-Gbps CWDM SFPs
Connectors and Cabling
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Equipment: Standard SFP interface
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Network: Dual LC connector
Dimensions
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Dimensions (H x W x D): 8.46 x 13.27 x 56.64 mm
Environmental Conditions and Power Requirements
Table 36 presents the optical parameters, and Table 37 presents the temperature ranges.
Table 36. Optical Parameters for Cisco 4-Gbps CWDM SFPs
Parameter Symbol Minimum Typical Maximum Units Notes and Conditions
Transmitter center
wavelength
lambda_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
Pout 1.0 - 5.0 dBm Average power coupled into single-
mode fiber
Receiver optical input
power (BER <10-12 with
PRBS 2-23-1)
Pin -15.7 - 0.0 dBm 140°F (60°C) case temperature
Link budget - 17.8 - - dB
Receiver optical input
wavelength
Lambda_in 1450 - 1620 nm -
Transmitter extinction ratio OMI 4 - - dB -
Dispersion penalty at 25
km (15.5 mi)
- - - 3 dB -
Note:
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In typical point-to-point deployments, all wavelengths have a minimum reach of 40 km (24.8 mi).
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Parameters are specified over temperature and at end of life unless otherwise noted.
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When shorter distances of single-mode fiber are used, you may need to insert an inline optical attenuator in
the link to avoid overloading the receiver.
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Up to 24 Cisco 4-Gbps CWDM SFP Transceivers are supported in a single Cisco MDS 9000 family switching
module.
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When interoperating a Cisco 4-Gbps CWDM SFP Transceiver with a Cisco 1/2-Gbps CWDM SFP
Transceiver, you must manually configure the port speeds on the Cisco 4-Gbps CWDM SFP Transceiver to 1
or 2 Gbps.