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7700 MultiFrame Manual
7707OO-HD SD/HD Fiber Optic Wavelength Converter
4.1.
STATUS INDICATOR LEDS
LOCAL FAULT:
This Red LED indicates poor module health and will be On during the absence of a
valid input signal or if a local power fault exists (i.e. a blown fuse). The LOCAL
FAULT indication can also be reported to the frame through the FRAME STATUS
jumper.
MODULE OK:
This Green LED indicates good module health. It will be On when a valid input
signal is present, and the board power is good.
SIGNAL VALID:
This Green LED indicates the presence of a valid input signal on the optical input.
The optical input is considered valid when the module has attained a lock to the
signal. If the reclocker is in non-reclock mode, then the input is considered valid
when the module detects the presence of a carrier.
CARRIER FAULT:
This Yellow LED indicates a weak signal carrier on the optical input. The CARRIER
FAULT thresholds are calibrated to an optical power of –21dBm for regular
7707OO-HD and to a power of –26dBm for 7707OO-HD-H.
LASER FAULT:
This Red LED indicates poor operation of the optical output laser, leading to limited
laser life. The optical output laser is enabled only while a valid input signal is
detected as indicated by the SIGNAL VALID LED.
RATE - SD:
This Green LED indicates that the reclocker is locked to one of the SD rates.
RATE - HD:
This Green LED indicates that the reclocker is locked to the 1.485 Gb/s HD rate.
EDH DISABLED:
This Yellow LED indicates that error detection on the card edge display has been
deactivated by the user. Press and hold the pushbutton until the LED goes Off to
enable EDH detection.
REMOTE:
This Yellow LED located beside the MASTER jumper indicates that local controls of
the card are disabled, and that the card is under control of the VistaLINK
Please refer to section 6 for information about VistaLINK
4.2.
DOT-MATRIX DISPLAY
Additional signal and status monitoring is provided via the 4-digit dot-matrix display located on the card
edge. The card-edge pushbutton is used to select which data is being displayed in the alphanumeric
display. Each time the pushbutton is pressed, the display advances to the next available display. A
message indicating what display mode is active is shown for one second. After one second without the
pushbutton being pressed, the selected display data is shown.
The following display messages indicate what is being displayed:
Input Optical Power
PWR
Video Standard in Use
STD
EDH Errors (for SD only)
EDH
The details of the optical power, video standards, and EDH error displays are described in sections 4.2.1
to 4.2.3
7707OO-HD-10
Revision 1.5
interface.
®
monitoring and control.
®
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