CANOGA PERKINS 9120 Gigabit Ethernet Media Converter - Manual (Page 19)

Canoga Perkins
9120 Gigabit Ethernet Media Converter 3-5
3.2.4 Link Loss Echo
Link Loss Echo is the Link-down propagation to another connected device (9120 or non-Canoga
equipment). Link Loss Echo will work only on the Extension Port. If a link loss is detected on the
Extension Port Rx, the Extension Port Tx will be disabled, echoing the fault back to the source. Link
Loss Echo configures the 9120 to not send data until data is received.
Figure 15. Link Loss Echo Switch Position.
9120 Linked to a 9120
When a 9120, linked to another 9120, detects a loss of signal on the User Port Rx, it will stop
transmitting to the remote 9120. Two 9120s cannot be linked together with Link Loss Echo enabled
on both units.
Figure 16. Link Loss Enable fault with 9120 to 9120 Link.
Extension
Port
Extension
Port