GE A8950CC - Manual (Page 26)

1. Turn on power and check status
Turn on the power to the Phoenix chassis using the switches on the Power Supply
modules. If two power supplies are installed, turn on both switches. The LEDs perform a
brief test when the chassis powers up: all seven LEDs turn green and then turn red. After
the test has completed the LEDs indicate the status of the power supplies and optics.
Power A and Power B: If a module is installed, and the power switch is on, and the
supply is working properly the corresponding LED will be green. If the supply is installed,
but the power switch is off or a problem has been detected the LED will turn red.
If either power supply slot is empty then the corresponding LED will be off.
Optic A and Optic B: If an optic transceiver is installed in one of the top two Optic
Module transceiver slots, the corresponding LEDs indicate the status of the following
conditions:
1. The transmit laser is working properly.
2. The receive photodiode detects sufficient light over the fiber.
3. The receiver detects another Phoenix node at the other end of the fiber.
If all three of these conditions are true, then the LED will be green. If any of these
conditions is not true, then the LED will be red. If an optic transceiver module slot is
empty, then the LED will be off.
Optic C and Optic D: These LEDs are unused. After the power-on test,
they will always be off.
Status: This LED indicates the status of the ring when the Phoenix system is configured
as a Self-Healing Ring (SHR). If the ring is complete (no fiber breaks) the LED will be green.
If a single fiber break is detected the LED turns amber/orange. If a double fiber break is
detected the LED turns red. Note that a single fiber break will not result in a loss of video,
audio, or data. A double fiber break may result in lost video, audio, or data. The LED is off
if the system is a Linear topology.
2. Select the system topology
In order for a Phoenix chassis to route information over its fiber links correctly, it must
know the topology of the entire system. A chassis can be part of either a Linear or
Self-Healing Ring topology. If you are configuring a Self-Healing Ring topology, then
each node must also know the total length of optical fiber used in the ring. Once set,
the topology (and ring length) will be remembered if the chassis loses power.
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