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7700 MultiFrame Manual
7707OE-HD SD/HD Re-Clocking Fiber to Electrical Converter
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. 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
(See 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.
4.2.1. Displaying the Optical Power
The 7707OE-HD module can measure and display the input optical power over a range of 0dBm to
-40dBm at 1dBm increments. To display the Input Optical Power, press the pushbutton one or more times
until the PWR message is shown on the display. After one second the detected input optical power will be
shown (in units of dBm).
Indicates optical input power exceeding –1dBm for standard version and
OVR
-7dBm for "–H" version
Optical input power within this range for standard version
-1 to –40
Optical input power within this range for "-H" version
-7 to –40
Optical input power below –40 dBm
O
L
W
Indicates that no valid input signal is present
LOS
7707OE-HD-6
Revision 1.2.2
monitoring and control.)
®
interface.
®
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