Allied Telesis PowerBlade PBC18 - Manual (Page 6)

PN 613-50381-00 Rev A 6 Allied Telesyn, Inc.
Fiber Optic Port (GBIC Transceivers)
The 1000Base-SX port on the GBIC transceiver has an SC connector and
is designed to operate with multimode fiber optic cabling. This port has
a maximum operating distance of 220 meters (721 feet) using 62.5/125
micron or 500 meters (1,640 feet) using 50/125 micron multimode fiber
optic cable.
The 1000Base-LX port on the GBIC transceiver has an SC connector and
is designed to operate with single-mode fiber optic cabling. This port
has a maximum operating distance of 10 kilometers (6.2 miles) to 70
kilometers (43.4 miles), depending on your model, using 10/125 micron
single-mode fiber optic cable.
Duplex Mode
Duplex mode refers to the way an end-node sends and receives data on
the network. An end-node can operate in either half- or full-duplex
mode, depending on its capabilities. An end-node that is operating in
half-duplex mode can either send data or receive data, but it cannot do
both at the same time. An end-node that is operating in full-duplex
mode can send and receive data simultaneously. The best network
performance is achieved when an end-node can operate at full-duplex,
since the end-node is able to send and receive data simultaneously.
The AT-PB1005G media converter operates in full-duplex mode only.
The media converter can operate with end-nodes capable of either full-
duplex mode or that can auto-negotiate the duplex mode. However, it is
important to remember that the two end-nodes connected to the ports
on the media converter must be able to operate in full-duplex mode.