7700 MultiFrame Manual
7707BPX Optical Bypass Protection Switch
Revision
1.6
Page-9
4.
STATUS INDICATORS AND DISPLAYS
The 7707BPX 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 6-1 shows the location of the LEDs and card edge controls.
4.1.
STATUS INDICATOR LEDS
Two large LEDs on the front of the board indicate the general health of the module:
LOCAL FAULT:
This Red LED indicates poor module health and will be On during the absence of a
valid optical input signal, if a laser fault exists, or if a local input 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 optical
input signal is present, and the laser and board power are good.
There are four small LEDs beside the LED display that indicate the status of the module:
CH A PWR:
This Red LED indicates when the received power on Channel A is below the
switching threshold set for Channel A. Refer to section 4.2.5.
CH B PWR:
This Red LED indicates when the received power on Channel B is below the
switching threshold set for Channel B. Refer to section 4.2.5.
CH A ACTIVE:
This Green LED indicates that Channel A is active and is connected to the output.
CH B ACTIVE:
This Green LED indicates that Channel B is active and is connected to the output.
