OFF | ON |
LLCF |
|
LLR1 |
|
LLR2 |
|
DIP switches
1000BASE | |
| PWR |
| SX |
R | LK |
X |
|
M |
|
M |
|
T |
|
X |
|
R | LK |
X |
|
S
M
T
X
LX
Port 1
Port 2
Power Connector
Link Loss Return Switches
The Radiance SONET single interface line card incorporates Link Loss Return (LLR) functionality as an aid in troubleshooting remote connections. LLR is enabled independently on each port. When LLR is enabled on a port, loss of its receive (RX) link disables its own transmit (TX) link.
LLR1 enables/disables Link Loss Return on Port 1, and LLR2 enables/ disables the function on Port 2. To enable Link Loss Return for a port, set its LLR switch ON (up). Set the switch OFF (down) to disable the function.
For more information, refer to Link Loss Return in the User Guide section of this manual.
6 Installation Guide