Black Box LHC5134A manual Specifications, Configuring the 100 Mbps Compact Media Converter, Power

What Is Pulsing FiberAlert?

Pulsing FiberAlert provides the same function as FiberAlert but, rather than ceasing transmission when the receiving unit goes down, Pulsing FiberAlert sends pulses through the line so that once the receiving unit starts to function, transmis- sion commences. Use Pulsing FiberAlert in the following two situations:

A)When connecting two Compact Media Converter units (or connecting a PSE-Compact Media Converter to a 100 Mbps Module TX/FX) with FiberAlert enabled.

B)When connecting one Compact Media Converter with FiberAlert enabled and one 10/100 Autosensing unit with Link Fault Detection (LFD) enabled.

Converter 1	Converter 2
FiberAlert Enabled	FiberAlert and Pulsing FiberAlert Enabled
FiberAlert Enabled	FiberAlert Disabled

INSTALLATION TIP

Enable FiberAlert and/or Pulsing FiberAlert on only ONE side of a media con- version; enabling it on both sides will keep both transmitters off indefinitely.

Specifications

Environmental

Operating Temperature: 32° - 122° F (0° - 50° C)

Storage Temperature: 0° - 160° F (-20° - 70° C)

Humidity: 5 - 95% (non-condensing)

Power

AC Input Load: 100-240VAC ±10%, 50/60 Hz, 1.5A

Heat generated: 51 BTU/hr.

Dimensions

1.64”H x 4.75”W x 4.95”D (4.17 cm x 12.07 cm x 12.57 cm)

Configuring the 100 Mbps Compact Media Converter

The 100 Mbps Compact Media Converter features an 8-position DIP switch for configur- ing the unit after installation. This switch is accessed through a cut-out in the bottom. After configuring the DIP switch, power cycle the Compact Media Converter for the changes to take effect. Default settings for the following features are shown in the diagram.

•AN ENABLED (Auto-Negotiation)

•MDI/MDI-X (Manual port setting)

•AUTO MDI/MDI-X (AutoCross)

•TX LL (TX LinkLoss)

•FX LL (FX LinkLoss)

•FA ENABLED (FiberAlert)

• FA PULSE (Pulsing FiberAlert)

Some switches are reserved for future development.

Twisted Pair Crossover/Pass-Through Connections

Whether using crossover or straight-through CAT5 twisted pair cabling, the 100 Mbps Compact Media Converter will support both types of connections by one of the following methods:

AutoCross (Switch 4): The Compact Media Converter includes AutoCross, a feature which automatically selects between a crossover workstation or pass- through/ repeater hub connection depending on the connected device. To enable AutoCross, move the Auto MDI/MDI-X switch to the ON position.

MDI/MDI-X (Switch 3): To manually configure the Compact Media Converter for a pass-through (MDI) or a crossover (MDI-X) connection, set Switch 4 to OFF and set Switch 3 to the desired connection type: MDI=OFF and MDI-X=ON. If unsure about the type of connection, set the DIP switch to a position that makes the twisted pair LNK (link) LED glow.

Auto-Negotiation

Auto-Negotiation, enabled by default, allows the Compact Media Converter to communicate at the speed and duplex settings of the device to which it is connect- ed. Therefore, if the device connected to the Compact Media Converter sends and receives at 100Mbps, Full-Duplex, so will the Compact Media Converter. This will function within the operating parameters of the Compact Media Converter (10/100Mbps, Half or Full Duplex).

To make the Compact Media Converter only communicate at one speed or one duplex setting, Auto-Negotiation will need to be turned off.

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