Perle Systems S-100MM-XXXXX User Manual download pdf (Page 4)

Fast Fiber to Fiber Media Converter – Installation Guide 4

DIP Switch Settings

Link Mode (Switch 1)

Switch Position Mode

Up (default) Link Pass-Through Mode

Down Standard Mode

Link Pass-Through: In this mode, the link state on one fiber

connection is directly reflected through the media converter to the

other fiber connection.

For example, if a Far End Fault (FEF) indication is received on

port MM1, the media converter in turn sends a signal to turn off the

transmitter on port MM2/SM2. When the Far-End Fault indication

is cleared the transmitter is then turned back on.

Standard Mode: In this mode, the links on the fiber side can be

brought up and down independently of each other. A loss of link

on either fiber connection can occur without affecting the other

fiber connection.

Far End Fault (Switch 2)

Switch

Position

Mode

Up (default) Enabled

Down Disabled

Enabled: If the media converter detects a loss of fiber signal on

the fiber receiver, the media converter will immediately send a

FEF on the fiber link. This, in effect, notifies the fiber link partner

that an error condition exists on the fiber connection.

If the remote media converter is set up for Far End Fault (FEF)

and the local media converter is set up with Link Pass-Through, a

loss of fiber link on either the transmit or receive link will be

passed through to the end fiber connection.

Disabled: Far End Fault indications are not transmitted regardless

of the condition of the receive signal on the 100BASE-FX fiber

connection.

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