Fibre installations have not kept pace with the demands made of the physical infrastructure. As an operator/owner of fibre, going back to install new ‘dark’ fibre is cost prohibitive. For a customer, renting extra dark fibre will obviously involve extra costs.
A solution to limited fibre availability is provided by CWDM (Coarse Wavelength-Division Multiplexing) technology, a method by which multiple wavelengths of light are multiplexed into a dedicated fibre pair and demultiplexed at the other end of the link. CWDM links are traditionally point-to-point, all wavelengths are independent of each other and they can carry data from different devices, services or customers. Multiplexing effectively increases the bandwidth of the pre-installed fibre.
CWDM systems offer service providers and Enterprise companies scalable and easy-to-deploy Gigabit Ethernet and Fibre Channel and TDM services for their networks, which may be deployed in data centres, on campus or metropolitan-area access networks.
B&B Electronics can provide a cost effective, compact, single chassis CWDM solution. The iMediaChassis chassis and associated modules can offer:
- Copper to CWDM conversion (TDM [E1], 100Mbps, GigE, 10GigE [CX4])
- Optical to CWDM conversion (100Mbps, GigE, 10GigE, FibreChannel, 10Gig FibreChannel, OC-192 / STM-64)
Within one chassis, the CWDM wavelengths can be created and in addition up to 8 CWDM channels can be MUX/DEMUX’d. This solution also has the advantage of being SNMP compliant, the operator can monitor optical information such as receive and transmit strengths.
The B&B Electronics iMediaChassis offers a mix of up to eight conversion modules, E1, GigE and 10GigE. For E1 the interface to the local equipment will be via RJ-48, for GigE the interface could be optical or copper and finally for 10GigE the interface will be optical. In each of the modules the applicable CWDM SFP, SFP+ would be installed.
Typical application for this solution would be multi-service provisioning over a dedicated point to point fibre e.g. ISP/Telco provided optical link, or a rented dark fibre.
The iMediaChassis provides 20 slots with dual AC input and two load sharing, hot-swap AC power modules providing N+1 redundant power DC input power supplies are also available. If required an optional SNMP Management Module may also be specified.
CWDM solutions can be provided for:
E1, Ethernet (100Mbps, 1GigE, 10GigE), Fibre Channel (2.4Gig), OC48(2.4Gig), OC192 (10Gig)
Multiplex/de-multiplex solutions:
4 channel or 8 channel + 1x expansion port.
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