12
Perle Type 4 High-Power PoE Ethernet Media Converter
Installation Guide
Off:
Copper negotiations should only be turned off, if the copper
link partner does not support copper link negotiations.
When the Auto Negotiation switch is set to the OFF position, the
media converter will not negotiate the Ethernet parameters with
the copper link partner. The parameters used by the media
converter will be determined by the Duplex (switch 4) and Speed
(switch 5) DIP switch settings.
Note:
This switch affects the behaviour of copper port 1 only; copper port 2 is
always set to Auto.
Link Mode (Switch 2)
Switch Position
Mode
Up (default)
Standard Mode
Down
Smart Link Pass-Through
Standard Mode(default)
: The link on the fiber and copper sides
can be brought up and down independently of each other. A loss
of link on either the fiber or copper port can occur without affecting
the other connection.
Smart Link Pass-Through:
The link state on one connection is
directly reflected through the media converter to the other
connection. If link is lost on one of the connections, then the other
link will be brought down by the media converter.
If the media converter has 2 copper or 2 fiber connections, then
both must go down in order to affect the other connection(s).
If the installation has a media converter on both ends of the fiber
link and both are set-up for Smart Link Pass-Through, then a loss
of copper link on the far end device will propagate through both
media converters and will result in a loss of link at the near end
device.
Fiber Fault Alert (Switch 3)
Switch Position
Fiber Port 1
Fiber Port 2
Up (default)
Enabled
Enabled
Down
Disabled
Enabled
Enabled:
If the media converter detects a loss of signal on the
fiber receiver, it will immediately disable its fiber transmitter signal
on the same port. This, in effect, notifies the fiber link partner that
