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Page 9 of 12
AMG6184-DR-SF Instruction Sheet
D18236-01.doc
e) At receive unit Rx1
, the Pri-Rx LED flashes 3 times: indicating a Primary Rx. fault in the direction
of Tx1, 3 units away. The Sec. Rx LED flashes once: indicating a Secondary Rx. fault in the direction
of Tx4, 1 unit away.
Self Diagnostic LED Example 2: Tx. Unit Failure
In the following example, a system is comprised of four insert units Tx1-Tx4 and one receive unit Rx1
and there is a complete failure or power loss at Tx unit Tx2. This effectively creates two fibre breaks
between adjacent insert units Tx2 and Tx3, and between Tx3 and Tx4. The break affects both the the
Primary and Secondary Optical channels.
a) At insert unit Tx1
, the Pri-Rx LED flashes once: indicating a Primary Rx. fault in the direction of
Tx2, 1 unit away. The Sec. Rx LED flashes twice: indicating a Secondary Rx. fault in the direction of
Rx1, 2 units away.
b) At insert unit Tx2
, the Pri-Rx LED is off: indicating that this unit is not receiving a Primary signal
from Tx3. The Sec Rx. LED flashes 3 times:indicating a Secondary Rx. fault in the direction of Tx1, 3
units away. The Sec. Tx LED is off: indicating that the Secondary Tx. (output) has been turned off.
c) At insert unit Tx3
, the unit has failed or lost its supply power, so all LEDs are off.
d) At insert unit Tx4
, the Pri-Rx LED flashes 3 times: indicating a Primary Rx. fault in the direction of
Rx1, 3 units away. The Sec. Rx LED is off: indicating that this unit is not receiving a Secondary signal
from Tx3.
e) At receive unit Rx1
, the Pri-Rx LED flashes twice: indicating a Primary Rx. fault in the direction of
Tx1, 2 units away. The Sec. Rx LED flashes once: indicating a Secondary Rx. fault in the direction of
Tx4, 1 unit away.
