1-8
IM AQ1300-01EN
1.5 Layer 1 Control
Tx Clock Master/Slave Synchronization
When Manual has been selected in the Test menu and the interface is XFP or SFP, you can select the
Tx clock source.
Tx Clock Source
Internal CLK: The internal clock is used.
Received CLK: The AQ1300/AQ1301 synchronizes with the Rx line signal.
Rx Clock Measurement
When the interface is XFP, SFP, or RJ-45 100BASE-TX, you can measure the frequency deviation of
the Rx clock.
Link State
Measurement Result Display
Linkdown
“---” is displayed.
Linkup
The frequency deviation of the Rx clock is displayed [ppm].
When the interface is RJ-45, the AQ1300/AQ1301 cannot measure the frequency deviation of the Rx
clock for 1000BASE-T or 10BASE-T connections. To measure the frequency deviation of the Rx clock
through the RJ-45 interface, use a 100BASE-TX connection.
LF and RF Transmission and Detection
When the interface is XFP, because the AQ1300/AQ1301 supports the notification of physical layer
failures through LFS (link fault signaling), it can transmit and detect LF (local fault) and RF (remote
fault) signals.
The AQ1300/AQ1301 can transmit LF and RF signals consecutively (start/stop).
Also, when Manual has been selected in the Test menu, the AQ1300/AQ1301 can automatically send
an RF signal upon linkdown detection or LF signal reception.
RxLF (Local Fault reception)
Detection: Four or more sequence columns that indicate LF at an interval less than 128 columns.
Sequence columns that indicate RF must not be received during this period.
Clear: When sequence columns that include LFs are not received 128 times.
RxRF (Remote Fault reception)
Detection: Four or more sequence columns that indicate RF at an interval less than 128 columns.
Sequence columns that indicate LF must not be received during this period.
Clear: When sequence columns that include RFs are not received 128 times.
Simple Optical Power Monitor
When the interface is XFP or SFP, the AQ1300/AQ1301 can monitor the received optical power level
and indicate it using three levels.
Indication Colors
Description
Black and black
When the RJ-45 interface is being used or when the XFP or SFP interface is
being used and the interface module is not installed
Red and black
When the level of received light is too low
Green and green When the level of received light is appropriate
Red and red
When the level of received light is too high
