PDF-Download - Microsens

MICROSENS Metropolitan Networks_Modular xWDM Platform Category_Multiplexer Technology_CWDM
Passive Multiplexers, OADMs
and Circulator
Up to 80 DWDM
Channels
IP
Optical
Multiplexer
Up to 8
Channels
SDH
MUX
OADM
Optical
Add/Drop
Multiplexer
MUX
Optical
Multiplexer
IP
SDH
Benefits
Passive interconnection of optical
channels
Design as module for the xWDM
platform
Standard complying with CWDMstandard
ITU G.694.2
Compact assembly with high density
High-quality and standardized
connectors
With 8° angled for the line side
No power required
Description
By using passive multiplexers such as the passive 8-channel CWDM Mux/DeMux,
several optical channels of different wavelengths can be combined, which will
allow multiple services to be transmitted together via fiber without interference.
What makes this possible is the fact that different light colours (wavelengths) do
not affect each other on the fiber. For transmission, light colours are multiplexed
onto a fiber by using a wavelength specific filter (multiplexing). At the other
(receiving) end of the line, the wavelengths are divided again, or rather, demultiplexed.
The passive multiplexer and demultiplexer modules are working with
the CWDM grid according ITU G.694.2 standard. Using WDM as transmission
technology, network operators can build an infrastructure that may be expanded
depending on need. In addition, the capacities in all sub areas of the network
are expandable. This represents an advantage which no other technology can
provide. Using passive multiplexers is of interest for cable network operators,
too. This technology allows providing additional services such as combining
bi-directional data services with uni-directional TV transmission without any
problems, while using the existing infrastructure.
Metropolitan networks
OADM Modules offer Add and Drop functionality of 1, 2 or 4 CWDM channels
while passing through all other optical signals. This means that specific channels
can be dropped at intermediate sites along the fiber in order to provide
connectivity to that site without the need to DeMux all the other channels on the
fiber. Some modules offer an additional expansion or Optical Service Channel
(OSC) interface. Planning xWDM network with OADM modules provides users
with the flexibility to drop individual wavelengths in a single sided direction
or a dual sided one.
With the Gigabit Ethernet TDM Module it is possible to double the capacity for
Gigabit Ethernet. With the time division multiplex (TDM) technology two Gigabit
Ethernet data streams (2x 1.25 Gbps 1000Base-X) are combined to one optical
channel (1x 2.5 Gbps). This aggregation is completely transparent for each Gigabit
Ethernet channel. Switch features such as VLANs, Stacked VLANs, Flow
Control, buffer management etc. are not affected. The Gigabit Ethernet TDM is
equipped with SFP slots for modularity of the optical interface. For xWDM applications
the line interface can be equipped with a coloured SFP transceiver.
System Catalog 1610
184 MICROSENS