Coarse Wavelength Division Multiplexing

AD1-XX-S1 Series –  

Single-channel Passive Optical Add-Drop Multiplexers
 
Canary’s Optical add/drop multiplexers (OADMs) enable selected channel wavelengths to “Drop” (exit) and to be “Added” (re-inserted) into a multi-wavelength, single-mode data stream. This allows intermediate locations between host sites to access the common, point-to-point fiber segment linking them. Wavelengths not “dropped”, pass-through the OADM and continue on in the direction of the remote host site. Additional selected wavelengths can be “dropped” by successive OADMs as needed. Each dropped wavelength (lambda) represents a two-way user or subnet connection. User traffic being re-inserted “Added” on the fiber ring returns to the common origin while “pass-through” traffic continues in the direction of the remote host. As each successive wavelength is removed and re-inserted on the fiber, fewer lambdas continue on to the remote host. Progression in the direction of the remote host ends at the OADM point that a wavelength is “dropped” because, as expected, its channel return-path is back to the origin.

In the case where the architecture is a single host and a series of drop points connected along a fiber bus, the segment end-point could be a single OADM with no other channels being forwarded. In this scenario, there would not be a need for a remote multichannel CWDM Multiplexer/De-Multiplexer.

The following table lists OADMs that service a single Client-channel Drop & Add (reinsertion) using one (Drop) wavelength.

Ordering Information
Model Numbers Description
(OADMs)
ITU-CWDM Wavelengths(λ)
in nano- meters (ηm)
Power
Source
Network (Loop)
Connector
CR-4MD1-A* 4-Channel Mux/Demux, Group A λs (For Reference) *(Group A λs: 1470, 1510, 1550, 1590) None SC - s/m
AD1-47-S1 1-Channel, 1-Wavelength, One SC Client port l = 1470 ηm None, Passive (2) SC - s/m
AD1-51-S1 1-Channel, 1-Wavelength, One SC Client port l = 1510 ηm None, Passive (2) SC - s/m
AD1-55-S1 1-Channel, 1-Wavelength, One SC Client port l = 1550 ηm None, Passive (2) SC - s/m
AD1-59-S1 1-Channel, 1-Wavelength, One SC Client port l = 1590 ηm None, Passive (2) SC - s/m
    (Group B λs: 1490, 1530, 1570, 1610)    
AD1-49-S1 1-Channel, 1-Wavelength, One SC Client port l = 1490 ηm None, Passive (2) SC - s/m
AD1-53-S1 1-Channel, 1-Wavelength, One SC Client port l = 1530 ηm None, Passive (2) SC - s/m
AD1-57-S1 1-Channel, 1-Wavelength, One SC Client port l = 1570 ηm None, Passive (2) SC - s/m
AD1-61-S1 1-Channel, 1-Wavelength, One SC Client port l = 1610 ηm None, Passive (2) SC - s/m
    (Group C λs:1290, 1310, 1330, 1350)    
AD1-31-S1 1-Channel, 1-Wavelength, One SC Client port l = 1310 ηm None, Passive (2) SC - s/m
AD1-XX-S1 Same as above except Group C (λ) descriptions   None, Passive SC - s/m
AD1-XX-S1 Same as above except Group D (λ) descriptions (Group D λs: 1390, 1410, 1430, 1450) None, Passive SC - s/m
AD1-XX-S1 Same as above except Group M (λ) descriptions (Group M λs:1310, 1330, 1350, 1370) None, Passive SC - s/m
All models of Passive Multiplexer / De-Multiplexers & OADMs use SC connectors as standard for single-mode network (loop) connections. Client ports can be either SC or LC style fiber connectors.
There are eighteen CWDM wavelengths (ls) specified. Eight standard wavelengths plus four O-band ls are useable over most standard single-mode fiber. Canary offers products for the standard eight wavelengths plus four O-band ls e.g. 1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610 hm + 1290, 1310, 1330, 1350hm
* Four channel Multiplexer/De-Mulitiplexer showing Group wavelengths for reference.

AD2-XXYY-S1 Series – 

Dual Wavelength/Dual Channel Passive Optical Add-Drop Multiplexers
AD2-XX-S1 Series –  Single Wavelength/Dual Channel Passive Optical Add-Drop Multiplexers

Two-channel OADMs are available in two variants. The first uses a separate wavelength per user channel i.e. lambda XX for Channel One and lambda YY for Channel Two, as in the single-channel and quad-channel OADM pattern. Both wavelengths are launched from a common origin or host CWDM. When they are “Added” i.e. reinserted on a fiber by an intermedita location OADM, they both propagate along the same return-path to their common origin.

The second Two-channel OADM variant uses the same wavelength for both channels i.e. lambda XX is used for both channels One and Two. This variant is used when the return-path for each channel is different i.e. one re-inserted traffic stream returns in the direction of its host CWDM while the other re-inserted stream flows in the opposite direction to the other “remote” host.

The two return-path directions are commonly identified as the “Eastern” leg or segment and as the “Western” leg or segment. The two-channel, single-wavelength, OADM effectively bifurcates the fiber ring into two virtual segments at that intermediate point for the wavelength in use. The host on each leg serves as the segment origin for that wavelength. An Add/Drop channel originating at a host CWDM on the “Eastern” leg has its return-path on that leg while an Add/Drop channel originating on the “Western” leg has its return-path on that leg. All other non-dropped wavelengths “passthrough” the OADM and propagate across the fiber in the normal manner.

Alternatively, a single wavelength two-channel OADM (AD2-XX-S1) gives an integrator the freedom to design a logical mid-span inflection point into a fiber segment that enables a connected host to simultaneously launch separate traffic streams into each of the two directions on the fiber ring – i.e. one data stream into the “Western” segment and one stream into the “Eastern” segment. Deployed in this way, an AD2-XX-S1 limits one datachannel to one part of the single-mode fiber segment or ring, while blocking the other data channel’s access to it – and restricts the second data-channel to its (separate) part of the fiber segment while the first channel is blocked from accessing it. This feature can be used to physically create two VLANs on the fiber ring without actually employing VLAN Tagging.

The following table lists OADMs that service two Client-access-channel ‘Drops & Adds’ (reinsertions) using two (Drop) wavelengths.

Ordering Information
Model Numbers Description
(OADMs)
ITU-CWDM Wavelengths(λ)
in nano- meters (ηm)
Power
Source
Network (Loop)
Connector
CR-4MD-A* 4-Channel Mux/De-Mux, Group A λs (For Reference) * (Group A λs: 1470, 1510, 1550, 1590)    
AD2-4751-S1 2-Channels, 2-Wavelengths, Two SC Client ports ls = 1470 ηm & 1510 ηm None, Passive (2) SC - s/m
AD2-5559-S1 2-Channels, 2-Wavelengths, Two SC Client ports ls = 1550 ηm & 1590 ηm None, Passive (2) SC - s/m
    (Group B λs: 1490, 1530, 1570, 1610)    
AD2-4953-S1 2-Channels, 2-Wavelengths, Two SC Client ports ls = 1490 ηm & 1530 ηm None, Passive (2) SC - s/m
AD2-5761-S1 2-Channels, 2-Wavelengths, Two SC Client ports ls = 1570 ηm & 1610 ηm None, Passive (2) SC - s/m
AD2-XXYY-S1 Same as above except Group C (λ) descriptions * (Group C λs: 1290, 1310, 1330, 1350) None, Passive SC - s/m
AD2-XXYY-S1 Same as above except Group D (λ) descriptions * (Group D λs: 1390, 1410, 1430, 1450) None, Passive SC - s/m
AD2-XXYY-S1 Same as above except Group M (λ) descriptions * (Group M λs: 1310, 1330, 1350, 1370) None, Passive SC - s/m
All models of Passive Multiplexer / De-Multiplexers & OADMs use SC connectors as standard for single-mode network (loop) connections. Client ports can be either SC or LC style fiber connectors.
There are eighteen CWDM wavelengths (ls) specified. Eight standard wavelengths plus four O-band ls are useable over most standard single-mode fiber. Canary offers products for the standard eight wavelengths plus four O-band ls e.g. 1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610 hm + 1290, 1310, 1330, 1350 hm
* Four-channel Multiplexer/De-Multiplexer showing Group wavelengths for reference.

Ordering Information
Model Numbers Description
(OADMs)
ITU-CWDM Wavelengths(l)
in nano- meters (
hm)
Power
Source
Network (Loop)
Connector
CR-4MD1-A * 4-Channel Mux/De-Mux, Group A λs (For Reference) (Group A λ s: 1470, 1510, 1550, 1590)    
AD2-47-S1 2-Channels, 1-Wavelength, Two SC Client ports l = 1470 ηm None, Passive (2) SC - s/m
AD2-51-S1 2-Channels, 1-Wavelength, Two SC Client ports l = 1510 ηm None, Passive (2) SC - s/m
AD2-55-S1 2-Channels, 1-Wavelength, Two SC Client ports l = 1550 ηm None, Passive (2) SC - s/m
AD2-59-S1 2-Channels, 1-Wavelength, Two SC Client ports l = 1590 ηm None, Passive (2) SC - s/m
    (Group B λs: 1490, 1530, 1570, 1610)    
AD2-49-S1 2-Channels, 1-Wavelength, Two SC Client ports l = 1490 ηm None, Passive (2) SC - s/m
AD2-53-S1 2-Channels, 1-Wavelength, Two SC Client ports l = 1530 ηm None, Passive (2) SC - s/m
AD2-57-S1 2-Channels, 1-Wavelength, Two SC Client ports l = 1570 ηm None, Passive (2) SC - s/m
AD2-61-S1 2-Channels, 1-Wavelength, Two SC Client ports l = 1610 ηm None, Passive (2) SC - s/m
AD2-XX-S1 Same as above except Group C (λ) descriptions (Group C λs: 1290, 1310, 1330, 1350) None, Passive SC - s/m
AD2-31-S1 2-Channels, 1-Wavelength, Two SC Client ports l = 1310 ηm None, Passive (2) SC - s/m
AD2-XX-S1 Same as above except Group D (λ) descriptions (Group D λs: 1390, 1410, 1430, 1450) None, Passive SC - s/m
AD2-XX-S1 Same as above except Group M (λ) descriptions (Group M λs: 1310, 1330, 1350, 1370) None, Passive SC - s/m
All models of Passive Multiplexer / De-Multiplexers & OADMs use SC connectors as standard for single-mode network (loop) connections. Client ports can be either SC or LC style fiber connectors.
There are eighteen CWDM wavelengths (ls) specified. Eight standard wavelengths plus four O-band ls are useable over most standard single-mode fiber. Canary offers products for the standard eight wavelengths plus four O-band ls e.g. 1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610 hm + 1290, 1310, 1330, 1350 hm
* Four-channel Multiplexer/De-Multiplexer showing Group wavelengths for reference.

AD4-4X-S1 Series – 

Quad Channel, Four Wavelength Passive Optical Add-Drop Multiplexers
 
The following table lists OADMs that service two Client "Drop & Add" channels using the same (Drop) wavelength. Each channel’s return-path propagates in a different direction (East or West) on the single-mode fiber to different host CWDM end-points.

The following table lists OADMs that service four Client-access channel Drops & Adds using four wavelengths.
 
Ordering Information
Model Numbers Description
(OADMs)
ITU-CWDM Wavelengths(l)
in nano- meters (hm)
Power
Source
Network (Loop)
Connector
AD4-4A-S1 4-Channels, 4-Wavelengths, Four SC Client ports (Group A λs: 1470, 1510, 1550, 1590) None, Passive (2) SC - s/m
AD4-4B-S1 4-Channels, 4-Wavelengths, Four SC Client ports (Group B λs: 1490, 1530, 1570, 1610) None, Passive (2) SC - s/m
AD4-4C-S1 Same as above except Group C (λ) descriptions (Group C λs: 1290, 1310, 1330, 1350) None, Passive SC - s/m
AD2-4D-S1 Same as above except Group D (λ) descriptions (Group D λs: 1390, 1410, 1430, 1450) None, Passive SC - s/m
AD2-4M-S1 Same as above except Group M (λ) descriptions (Group M λs: 1310, 1330, 1350, 1370) None, Passive SC - s/m
All models of Passive Multiplexer / De-Multiplexers & OADMs use SC connectors as standard for single-mode network (loop) connections. Client ports can be either SC or LC style fiber connectors.
There are eighteen CWDM wavelengths ( ls) specified. Eight standard wavelengths plus four O-band ls are useable over most standard single-mode fiber. Canary offers products for the standard eight wavelengths plus four O-band ls e.g. 1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610 hm + 1290, 1310, 1330, 1350 hm


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