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WDM

WDM Solutions Overview

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WDM Solutions Overview

Our WDM products cover the S,C, and L-Band wavelengths commonly used in optical fibre systems. From 1471nm to 1611nm for CWDM and 1531nm to 1565nm for DWDM. CWDM is a cost-effective solution for networks requiring fairly high bit rates, and represents a perfect economic and technologic match for metro access and metro core networks. DWDM offers more flexibility and robustness with respect to fibre types and channel counts, but with additional costs due to the tight channel spacing. The key advantages for both CWDM and DWDM are their protocol and bit rate transparency. WDM based networks can transmit data in IP, ATM, SONET/SOH and Ethernet and handle bit rates between 100Mb/s and 10Gb/s (and beyond).

WDM Solutions Overview

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4 and 8 Channel DWDM Mux/DeMUX

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FRM220 4 and 8 Channel DWDM Mux/DeMUX

FRM220 4 and 8 Channel DWDM Mux DeMUX

The FRM220-DWDM Mux/DeMux Modules with 100GHz channel spacing can be used to combine or separate wavelength channels at standard ITU grid. We supply the common configuration including 4, 8, 16 channels. These DWDM modules passively multiplex the optical signal outputs from 4 or more electronic devices, and send them over a single optical fibre and then de-multiplex the signals into separate, distinct signals for input into electronic devices at the other end of the fibre optic link. All the DWDM Mux/DeMux modules provide excellent optical performance and high reliability to ease of fibre handling and power saving solution.

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4 and 8 Channel CWDM Mux/DeMUX

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FRM220 4 and 8 Channel CWDM Mux/DeMUX

FRM220 4 and 8 Channel CWDM Mux DeMUX

The FRM220-CWDM Mux/DeMux features modular design cards that support ITU-T G.694.2 wavelengths between 1271nm to 1611nm in 20nm increments. The FRM220 CWDM modules are protocol and rate transparent allowing different services such as 10G Ethernet, 10GFC, STM-64, OC-192 to be transported across the same fibre link. The passive FRM220 CWDM Mux/DeMux modules are available in 4 and 8-Channel (wavelength) models, supporting a variety of wavelength combinations and port configurations. The small and compact size of the CWDM modules yields one of the highest port densities in the industry. A 2U high 19-module FRM220 chassis populated with modules can yield up to 120 channels of capacity. FRM220 CWDM modules are passive devices that require no external power. They can also be installed in an FRM220 powered chassis with a NMC management module and can be managed using SmartView EMS network management software, third-party SNMP software, Telnet or a serial console port. The modules can be installed in any FRM220 chassis equipped with other FRM220 media converters and transponders to provide a multi-service platform capable of delivering Ethernet, TDM, Voice and other services across a CWDM fibre common link.

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Fibre Optical Protection Switch

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FRM220-OPS51 & OPS52 Fibre Optical Protection Switch

1+1 Fibre Optical Protection Switch

The FRM220-OPS Fibre Optical Protection Switches are able to provide fibre path redundancy on a channel by channel basis. These units are particularly well suited for protection in any type of fibre data transmission. This solution includes monitoring capabilities for both the working and protected path fibres. In case of a fibre cut in the active path, traffic will be switched over to the protected path in less than 50ms (FRM220-OPS51) or 20ms (FRM220-OPS52). Monitoring is available through SNMP Management when both cards are placed in an FRM220 rack with SNMP management. The management can view the converter card's status, type, version, fibre link status and alarms. The selected card can be configured to enable or disable the port, reset the port, and configure receive threshold levels for path switching.

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