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Categories (x) > Networking > Media Converters > Commercial Grade Media Converters (x)

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  • Manual... 
  • Gigabit PoE Media Converter User Manual
    User Manual for the LGC5200A, LGC5201A, LGC5202A, LGC5210A, LGC5211A, LGC5212A, LGC5200-PS, LGC5210-PS, & LGC200-WALL (Version 1)
 
  • Manual... 
  • FlexPoint Modular Media Converter Manual
    Manual for LMC100A-SC-R2, LMC100AE-SC-R2, LMC100A-SMSC-R2, LMC100AE-SMSC-R2, LMC100A-R2, LMC100AE-R2, LMC100A-SM-R2, LMC100AE-SM-R2, LMC100A-SMSC-LH-R2, LMC100AE-SMSC-LH-R2. LMC100A-RJ-R2, LMC100AE-RJ-R2, LMC100A-SMSC-XLH-R2, LMC100AE-SMSC-XLH-R2, LMC100A (Version 2)
 

Product Data Sheets (pdf)...Modular Media Converters


Product Data Sheets (pdf)...High-Density Media Converter System II

  • Manual... 
  • FlexPoint T1/E1 to Fiber Line Driver
    Installation and User Guide (Dec-04)
 

Product Data Sheets (pdf)...Layer 1 Gigabit Media Converters


Black Box Explains...Single-strand fiber WDM.

Traditional fiber optic media converters perform a useful function but don’t really reduce the amount of cable needed to send data on a fiber segment. They still require two strands... more/see it nowof glass to send transmit and receive signals for fiber media communications. Wouldn’t it be better to combine these two logical communication paths within one strand?

That’s exactly what single-strand fiber conversion does. It compresses the transmit and receive wavelengths into one single-mode fiber strand.

The conversion is done with Wave-Division Multiplexing (WDM) technology. WDM technology increases the information-carrying capacity of optical fiber by transmitting two signals simultaneously at different wavelengths on the same fiber. The way it usually works is that one unit transmits at 1310 nm and receives at 1550 nm. The other unit transmits at 1550 nm and receives at 1310 nm. The two wavelengths operate independently and don’t interfere with each other. This bidirectional traffic flow effectively converts a single fiber into a pair of “virtual fibers,” each driven independently at different wavelengths.

Although most implementations of WDM on single-strand fiber offer two channels, four-channel versions are just being introduced, and versions offering as many as 10 channels with Gigabit capacity are on the horizon.

WDM on single-strand fiber is most often used for point-to-point links on a long-distance network. It’s also used to increase network capacity or relieve network congestion. collapse

  • Visio Stencil Drawing... 
  • Visio Stencil
    Stencil Drawings
 
  • Manual... 
  • 100 Mbps Compact Media Converter
    Installation and User Guide (Dec-06)
 

Black Box Explains...Link loss.

Media converters solve the problem of connecting different media types in mixed-media networks. In order to comply with IEEE standards, they implement IEEE data-encoding rules and the Link Integrity Test.

For... more/see it nowa twisted-pair segment, a link is a signal sent by the converters when the cable is in use. If no Link Integrity Test signal is received, the connected device assumes that the link is lost.

With fiber cable, a connected device checks a line by monitoring the Link Integrity Test signal from the converter and the power of the light being received. If the light’s power drops below a certain threshold, the link is lost. In either case, link loss usually results from a broken cable, which is the cause of approximately 70% of all LAN problems.

Link loss is often indicated by an LED on a connected network device. You can also monitor a link with network-management software, such as SNMP, which sends a TRAP (alert) to the management workstation when the link is lost.

Media converters actually function as two separate Multistation Access Units (MAUs). For example, one monitor is a twisted-pair segment and one monitor is a fiber segment. If a fiber cable is broken and the link is lost, a network manager on the twisted-pair end won’t know there’s a problem until users on the fiber side report it.

To solve this problem, Black Box® Modular Media Converters feature a unique Link-Loss capability. This enables the link status on one segment to reflect the link status of the other segment. So if the link is lost on the fiber side, the link is disabled on the UTP segment as well. And the converters will send an SNMP TRAP indicating the loss of link to the management workstation. collapse

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