2 INSTALLATION

2.6Connecting Channel Ports to Network

Each channel port is connected, using twisted-pair copper and fiber-optic cable, to network devices.

2.6.1Setting FDX/HDX Channel Configuration Switches

FDX/HDX (F(ull-)D(uple)X and H(alf)D(uple)X) refers to the manner in which a network device sends and receives data on the network. A network device that is operating in half-duplex mode either sends data or receives data, in turn. A network device that is operating in full-duplex mode both sends and receives data, simultaneously.

NOTE: The Multichannel Media Converter is an HDX/FDX auto- negotiating device which transmits "FDX Advertising" signals to attached network devices and forces FDX-capable network devices to FDX. Though each channel of the Multichannel Media Converter can operate in either full-duplex or half-duplex mode, setting the entire network to full-duplex mode maximizes throughput and distances. To achieve this, ALL interconnected devices must be capable of full-duplex and properly set.

CAUTION: If any network devices connected to a channel are not capable of full-duplex (FDX), then all other channel devices must be set to half-duplex (HDX), INCLUDING THE MULTICHANNEL MEDIA CONVERTER CHANNEL. Failure to observe this caution will result in excess network collisions.

NOTE: Each channel FDX/HDX switch must be set separately. Do NOT connect a node operating at half-duplex to a twisted-pair port and then connect another node operating at full-duplex to the fiber-optic port of the same channel. Do NOT connect a node operating at full-duplex to a twisted-pair port and then connect another node operating at half-duplex to the fiber-optic port of the same channel.

Setting Full-Duplex/Half-Duplex Configuration Switches

1.Locate six (6) FDX/HDX switches that are associated with six (6) copper-to-fiber media converter channels (DIP switches #1-6 at front of Multichannel Media Converter).

FDX NO

1 2 3 4 5 6

2.Referring to full-duplex/half-duplex mode of network devices to be attached to channel nodes, FOR EACH CHANNEL, set the associated configuration switch to FDX (full- duplex): UP or to HDX (half-duplex): DOWN.

1 2 3 4 5 6 7

HDX TE

MULTICHANNEL MEDIA CONVERTER

2.9

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Transition Networks DVP 5140K manual Connecting Channel Ports to Network, Setting FDX/HDX Channel Configuration Switches
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DVP 5140K specifications

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