7700 MultiFrame Manual
7700ACO-HD HD/SD SDI 8 Channel AES & RS-232/RS-422 Auto Changeover
Revision 1.3
Page 9
4.
STATUS INDICATORS
The 7700ACO-HD has 8 LED Status indicators on the front card edge to show operational status of the
card at a glance. Figure 4-1 shows the location of the LEDs and card edge controls.
7700ACO-HD
toggle
switch
BANK
SELECTION
A
LOCAL
FAULT
MODULE
OK
push
button
LOCAL /
REMOTE
B
1 2 3 4
A
B
BANK
PRESENCE
Figure 4-1: Status LED Locations
Two large LEDs on the front of the main 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 input signal 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.
The Red LED will also indicate any differences in signals on Bank A and B (based
on POOL settings). The 7700ACO-HD expects to have an equal number of inputs
on Banks A and B. If there is a discrepancy, this is considered a fault condition
since a switch from the primary (or active) bank to the secondary bank will result
in a loss of video or audio (depending on the missing input signal).
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.
4.1. BANK SELECTION LEDS
These two LEDs indicate which input is providing the source for the output. Input A is located at the top
leftmost LED.
LED
Colour
Description
A
Off
Bank A is not selected as a source for output.
Green
Bank A is selected as source for output.
B
Off
Bank B is not selected as source for output.
Yellow
Bank B is selected as source for output.
Table 4-1: Bank Selection LEDs
