Prosody compact PCI installation guide
11
2.5
CompactPCI card LED usage
The Prosody cPCI card has a block of eight LEDs visible on the endplate of the card. The upper
LEDs correspond to the four Sharc processors on the card, the LEDs for each processor show red
for reset/fault and green for running. The lower LEDs correspond to the four primary rate ports
and show red for reset, and either green or off for running, depending on firmware.
2.6
PM module LED usage
There are up to 12 surface mount LEDs mounted on the PM4 module. These are difficult to see
after the card has been installed. The LEDs are arranged in 4 rows, one for each port.
LED
A,
LED
B,
LED
C
-
PORT 3
LED A, LED B, LED C -
PORT 2
LED A, LED B, LED C -
PORT 1
LED A, LED B, LED C -
PORT 0
Current production is LED A red, LEDs B & C green.
PM4 Module LED detail
While a port processor is in the reset state the LED A is on. It will go out when firmware is
downloaded to the port. LED B turns on briefly during firmware download.
ISDN protocols
LED B flashes when layer 1 transmits a frame. LED C flashes when layer 1 receives a frame. The
quiescent state of LEDs B & C indicates the state of layer 1.
When both LEDs are off, layer 1 is inactive, and the LEDs will flash on to indicate frames.
When both LEDs are on, layer 1 is active (F1 or F2 state), and the LEDs will flash off to indicate
frames.
CAS protocols
The state of LEDs B & C indicate Line State. When both LEDs are off, there is a line problem (for
example, no signal or loss of sync). When both LEDs are on, the line is active and LED B (LED C)
will flash off when a digit is transmitted (received).
Note
If the power supply voltage goes outside of tolerance, the board will go into the reset state, indicated by all the A (Red) LEDs being on.
