7700 MultiFrame Manual
7780ASIB2-DS3/E3 2 Channel ASI + Ethernet DS3/E3 Transceiver
Revision
2.0
Page - 7
4.
STATUS INDICATORS AND DISPLAYS
The 7780ASIB2-DS3/E3 has 4 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 and toggle switch are
used to select various displays on the alphanumeric display. Figure 4-1 shows the locations of the
indicators, pushbutton and toggle switch.
Alpha-numeric
Display
7780ASIB2-DS3/E3
Green Module OK LED
1
2
1
2
Toggle Switch
Pushbutton
Red Local Fault LED
Vi
deo
OU
T
Pay
load
Vid
eo IN
Figure 4-1: Location of Status Indicators and Controls
4.1.
STATUS INDICATOR LEDS
LOCAL FAULT:
On the 7780ASIB2-DS3/E3 board this Red LED will be ON if no valid link input
signal is present, or if a local input power fault exists (i.e. a blown fuse).
The LOCAL FAULT indications 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 link input
signal is present, and board powers are good.
VIDEO IN STATUS LED:
GREEN:
Valid signal input. No errors.
RED:
Valid signal input. Errors detected.
OFF:
No
valid
input
detected.
YELLOW:
Input is blocked by the user from being transported through DS3 link.
VIDEO OUT STATUS LED:
GREEN:
Valid signal at output. No errors.
RED:
Valid signal at output. Errors detected.
OFF:
No
valid
output
detected.
YELLOW:
Output is blocked by the user from being transported through output BNC.
PAYLOAD STATUS LED:
GREEN: Payload
OK.
RED:
Errors detected or signal not present.
