IMC Networks AccessEtherLinx/4 - Manual (Page 5)

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Single-strand fiber products use optics that transmit and receive on two different wavelength.
Single-strand fiber products must be deployed in pairs, connecting two compatible single-
strand fiber products. Connect the 852-10133 (1310 xmt and 1550 rcv), for example, to a
product with 1550 xmt and 1310 rcv, e.g. 852-10134 (1550 xmt and 1310 rcv.) The two
connected products must also have the same speed and distance capabilities (i.e. both are
single-mode [20km] or both are single/PLUS [40km]).
Features
AutoCross Feature for Twisted Pair Connection
All twisted pair ports on the AccessEtherLinX/4 include AutoCross, a feature which
automatically selects between a crossover workstation or pass-through connection
depending on the connected device.
Software Configurable Features
The FiberAlert, as well as Auto Negotiation (Selective Advertising) and Bandwidth
Control features are all configurable via the management software or via serial
configuration or Telnet session.
Refer to the AccessEtherLinX/4 help file for additional information.
About FiberAlert
The AccessEtherLinX/4 includes an advanced troubleshooting feature, FiberAlert,
which minimizes the problems associated with the loss of one strand of fiber. If a
strand is unavailable, the AccessEtherLinX/4 notes the loss of link. The device will
then stop transmitting data and the link signal until a signal or link pulse is received.
The result is that the link LED on both sides of the fiber connection will extinguish,
indicating a fault somewhere in the fiber loop. Using FiberAlert, a local site
administrator is notified of a fault and can quickly determine where a cable fault is
located.
NOTE
FiberAlert is not available/applicable on single-strand fiber products.
NOTE
Enable FiberAlert on ONE side of a media conversion only; Enabling it on both sides would
keep both transmitters off indefinitely!
Auto Negotiation, Duplex Mode and Speed
The twisted pair ports on the AccessEtherLinX/4 Auto Negotiate for speed and duplex
mode. This device can also selectively advertise or force the speed and duplex