Instruction manual
The LED functions for Compact Media Converter TP/FO are as follows:
TP
L
INK
Glows green if link is established on the TX port.
TP
A
CT
Glows amber when data is being passed on the TX port.
FA
P
ULSE
Glows green when Pulsing FiberAlert is enabled.
PWR
Glows green when unit has power.
FO
L
INK
Glows green when link is established on the FX port.
FO
A
CT
Glows green if data is being passed on the FX port.
The LED functions for Compact Media Converter TP/BNC are as follows:
TP
RCV
Flickers amber when twisted pair port is receiving data.
TP
LNK
Glows green when a twisted pair link is established.
BNC
COL
Flickers red in normal operation indicating normal
collisions are being detected on the BNC segment.
BNC
RCV
Flickers amber when BNC port is receiving data.
(Note: On a -20 Compact Media Converter TP/BNC, the TP RCV and BNC RCV LEDs
flicker at a rate proportional to rate that data being passed on the ports. Under low
traffic conditions, the LEDs flicker visibly, while they appear to glow under high traf-
fic conditions.)
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W HAT I S P ULSING F IBERA LERT?
Pulsing FiberAlert minimizes the
problems associated with the loss of
one strand of fiber. If a strand is
unavailable, the IMC Networks
device at the receiver end notes the
loss of link. The device will stop
transmitting data and start sending
link pulses. Until a valid link is
received, the fiber link LED will be
OFF on the device on the receiver side of the fiber strand with the fault while
the fiber Link LED on the other unit will blink. Pulsing FiberAlert notifies a
local site administrator of a fault, allowing quick determination of where a
cable fault resides.
NOTE: You can enable Pulsing FiberAlert on BOTH sides of a conversion.
C
ONFIGURING P ULSING F IBERA LERT
Compact Media Converter TP/FO features an
8-position DIP switch located on the bottom of the
unit for configuring Pulsing FiberAlert after installa-
tion. To enable Pulsing FiberAlert, move the switch
labelled “FA Pulse” to the ON position. After con-
figuring the DIP switch, power down the unit and
then power up again for the changes to take
effect. The default setting for the this feature is
shown to the right. Switches 6-8 are factory-con-
figured; DO NOT change.
If unsure of how to best implement these features in your configuration,
please contact Black Box Technical Support.
LED Operation
Each Compact Media Converter features diagnostic LEDs. The following illus-
trations show the location of the LEDs, and other features, on Compact Media
Converter TP/FO and Compact Media Converter TP/BNC.
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