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4.
STATUS INDICATORS AND DISPLAYS
The 7707OE-HD has 6 LED Status indicators and a 4 digit alphanumeric display on the front card edge to
show operational status of the card at a glance. The card edge pushbutton is used to select various
displays on the alphanumeric display. Figure 4-1 shows the location of the card edge status indicators,
dot matrix display, pushbutton and jumpers.
Figure 4-1: 7707OE-HD Status Indicator and Jumper Locations
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 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 -16dBm.
NOTE: Newer cards are calibrated to –21dBm or -26dBm for the –H (high sensitivity)
version. This value is 2dBm greater than the maximum sensitivity of the cards.
7707OE-HD SD/HD Re-Clocking Fiber to Electrical Converter
RATE- SD
RATE-HD
EDH DISABLED
REMOTE
Revision 1.2.2
7700 MultiFrame Manual
FRAME STATUS
ON/OFF
LOCAL FAULT
MODULE OK
SIGNAL VALID
CARRIER FAULT
DISPLAY
SELECT
RECLOCK
AUTO/BYPASS/FORCE
FORCED RATE
HD/SD/310M
MASTER
LOCAL/REMOTE
UPGRADE
UPGRADE/RUN
7707OE-HD-5
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