CWDM

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CWDM stands for Coarse Wavelength Divison Multiplexing.

With this technology you can send up from 4 to 16 different "colors" over a fiber-optical-cable. The edge of CWDM to normal fiber-optical-cable is, that you have a much higher speed and so you can send mutch more data over one cable than with a normal optical-technology. An other difference is the range, the CWDM has a range of over 50km.

CWDM operating mode


At first, you need pro colour a GBIC, a SFP, a XFP or a XENPAK. Then you will connect your optical transceiver with a MUX. This device bunch your signal an send it over one fiberoptic cable to a DEMUX. This device will split the signal in the original state and send it to the optical transceiver back
CWDM.png


The difference to DWDM


  • cheaper, because the laser are not cooled.
  • greater distance between the "colour"
  • lower numbers of colours (only 4 til 16, DWDM have up to 80 and theoretically any more colors)
  • shorter range



Cisco Supported SFP Optics and Applications

Client Protocol Bit Rate (Mbps) Client SFP (Product Number) CWDM Line SFP (Product Number) DWDM Line SFP (Product Number)
SONET/SDH 2488 • SFP-OC48-SR
• SFP-OC48-IR1
• SFP-OC48-LR2
CWDM-SFP-1470
CWDM-SFP-1490
CWDM-SFP-1510
CWDM-SFP-1530
CWDM-SFP-1550
CWDM-SFP-1570
CWDM-SFP-1610
32 channels
• DWDM-SFP-3033=
• DWDM-SFP-3112=
-
• DWDM-SFP-XXXX=
-
• DWDM-SFP-5979=
• DWDM-SFP-6061=
622 • SFP-OC12-SR
• SFP-OC12-IR1
• SFP-OC12-LR1
• SFP-OC12-LR2
• SFP-OC12-MM
CWDM-SFP-1470
CWDM-SFP-1490
CWDM-SFP-1510
CWDM-SFP-1530
CWDM-SFP-1550
CWDM-SFP-1570
CWDM-SFP-1610
32 channels
• DWDM-SFP-3033=
• DWDM-SFP-3112=
-
• DWDM-SFP-XXXX=
-
• DWDM-SFP-5979=
• DWDM-SFP-6061=
155 SFP-OC3-SR
• SFP-OC3-IR1
• SFP-OC3-LR1
• SFP-OC3-LR2
• SFP-OC3-MM
• ONS-SE-155-1470=
• ONS-SE-155-1490=
• ONS-SE-155-1510=
• ONS-SE-155-1530=
• ONS-SE-155-1550=
• ONS-SE-155-1570=
• ONS-SE-155-1590=
• ONS-SE-155-1610=
-
Gigabit Ethernet 1250 • GLC-LH-SM=
• GLC-SX-MM=
• GLC-ZX-SM=
• GLC-BX-D=
• GLC-BX-U=
• SFP-GE-L=
• SFP-GE-S=
• SFP-GE-Z=
CWDM-SFP-1470
CWDM-SFP-1490
CWDM-SFP-1510
CWDM-SFP-1530
CWDM-SFP-1550
CWDM-SFP-1570
CWDM-SFP-1610
32 channels
• DWDM-SFP-3033=
• DWDM-SFP-3112=
-
• DWDM-SFP-XXXX=
-
• DWDM-SFP-5979=
• DWDM-SFP-6061=
Fibre Channel 1063 DS-SFP-FC-2G-LW=
• ONS-SE-G2F-LX=
• DS-SFP-FC-2G-SW=
• ONS-SE-G2F-SX=
CWDM-SFP-1470
CWDM-SFP-1490
CWDM-SFP-1510
CWDM-SFP-1530
CWDM-SFP-1550
CWDM-SFP-1570
CWDM-SFP-1610
32 channels
• DWDM-SFP-3033=
• DWDM-SFP-3112=
-
• DWDM-SFP-XXXX=
-
• DWDM-SFP-5979=
• DWDM-SFP-6061=
2125 • DS-SFP-FC-2G-LW=
• ONS-SE-G2F-LX=
• DS-SFP-FC-2G-SW=
• ONS-SE-G2F-SX=
CWDM-SFP-1470
CWDM-SFP-1490
CWDM-SFP-1510
CWDM-SFP-1530
CWDM-SFP-1550
CWDM-SFP-1570
CWDM-SFP-1610
32 channels
• DWDM-SFP-3033=
• DWDM-SFP-3112=
-
• DWDM-SFP-XXXX=
-
• DWDM-SFP-5979=
• DWDM-SFP-6061=



Cisco CWDM GBIC Product Information

Product Number Description Color
CWDM-GBIC-1470 Cisco 1000BASE-CWDM GBIC, 1470 nm Gray
CWDM-GBIC-1490 Cisco 1000BASE-CWDM GBIC, 1490 nm Violet
CWDM-GBIC-1510 Cisco 1000BASE-CWDM GBIC, 1510 nm Blue
CWDM-GBIC-1530 Cisco 1000BASE-CWDM GBIC, 1530 nm Green
CWDM-GBIC-1550 Cisco 1000BASE-CWDM GBIC, 1550 nm Yellow
CWDM-GBIC-1570 Cisco 1000BASE-CWDM GBIC, 1570 nm Orange
CWDM-GBIC-1590 Cisco 1000BASE-CWDM GBIC, 1590 nm Red
CWDM-GBIC-1610 Cisco 1000BASE-CWDM GBIC, 1610 nm Brown
CWDM-8GBIC-SET1 Set of four pairs of Cisco 1000BASE-CWDM GBICs 2 gray, blue, yellow, or red
CWDM-8GBIC-SET2 Set of four pairs of Cisco 1000BASE-CWDM GBICs 2 violet, green, orange, or brown



Passive CWDM Devices by Cisco

Product Number Description
CWDM-CHASSIS-2= 2-slot CWDM chassis
CWDM-MUX4-SF1= 4 channels (1470, 1510, 1550, and 1590) single-fiber multiplexer/demultiplexer to be deployed always in conjunction with CWDM-MUX4-SF2=
CWDM-MUX4-SF2= 4 channels (1490, 1530, 1570, and 1610) single-fiber multiplexer/demultiplexer to be deployed always in conjunction with CWDM-MUX4-SF1=
CWDM-MUX8A= 8-channel (1470, 1490, 1510, 1530, 1550, 1570, 1590, and 1610) multiplexer/demultiplexer with monitor ports and LC connectors (this product replaces CWDM-MUX-8).
CWDM-OADM4-1= 4 channels (1470, 1490, 1510, and 1530) optical add/drop multiplexer (OADM) with monitor ports and LC connectors (this product replaces CWDM-MUX-4=)
CWDM-OADM4-2= 4 channels (1550, 1570, 1590, and 1610) OADM with monitor ports and LC connectors (this product replaces part number CWDM-MUX-4=)
CWDM-OADM1-1470= Single-wavelength (1470) dual-channel OADM with monitor ports and LC connectors (this product replaces part number CWDM-MUX-AD-1470=)
CWDM-OADM1-1490= Single-wavelength (1490) dual-channel OADM with monitor ports and LC connectors (this product replaces CWDM-MUX-AD-1490=)
CWDM-OADM1-1510= Single-wavelength (1510) dual-channel OADM with monitor ports and LC connectors (this product replaces CWDM-MUX-AD-1510=)
CWDM-OADM1-1530= Single-wavelength (1530) dual-channel OADM with monitor ports and LC connectors (this product replaces part number CWDM-MUX-AD-1530=)
CWDM-OADM1-1550= Single-wavelength (1550) dual-channel OADM with monitor ports and LC connectors (this product replaces part number CWDM-MUX-AD-1550=)
CWDM-OADM1-1570= Single-wavelength (1570) dual-channel OADM with monitor ports and LC connectors (this product replaces part number CWDM-MUX-AD-1570=)
CWDM-OADM1-1590= Single-wavelength (1590) dual-channel OADM with monitor ports and LC connectors (this product replaces part number CWDM-MUX-AD-1590=)
CWDM-OADM1-1610= Single-wavelength (1610) dual-channel OADM with monitor ports and LC connectors (this product replaces part number CWDM-MUX-AD-1610=)
WDM-1300-1550-S= Y-cable WDM filter with a 1300-nm port, a CWDM 1550-nm port, and a network port to multiplex or demultiplex 1300-nm channels with CWDM or any 1550-nm channels

download CWDM passifs datasheet