Grass Valley AMX-1881 - Manual (Page 3)

AMX-1881 HD/SD 8 AES Embedder
Guide to Installation and Operation
AMX-1881 Page 3 of 19
INSTALLATION
Make sure the following items have been shipped with your
AMX-1881. If any of the following items are missing,
contact your distributor or Miranda Technologies Inc.
* AMX-1881 HD/SD 8 AES Embedder
* AMX-1881 -75-DRP rear panel
* AMX-1881 breakout panel
* Densité-ext-mount external mounting bracket (one per
frame)
The AMX-1881 and its associated rear connector panel
must be mounted in a DENSITÉ frame. It is not necessary
to switch off the frame’s power when installing or removing
the AMX-1881. See the DENSITÉ Frame manual for
detailed instructions for installing cards and their
associated rear panels.
The AMX-1881 has multiple inputs and outputs, and
making space for all the necessary connectors at the rear
of the frame requires a double-width rear panel.
When a double–width rear panel has been installed, the
AMX-1881 must be installed in the right-most of the two
slots covered by the panel in order to mate with the panel’s
connectors. If it is placed in the wrong slot, the front panel
LED will flash red. Move the card to other slot for correct
operation. No damage will result to the card should this
occur.
In addition, the AMX-1881 requires an external mounting
bracket and breakout panel. The breakout panel is
connected to the rear panel via a multi-conductor cable
fitted with two male connectors. The AMX-1881’s inputs
and outputs occupy both panels.
See the annex at the end of this manual for the
specification of the cable to interconnect the rear panel and
the breakout panel.
OPERATION
Overview
The DENSITÉ frame incorporates a central controller card,
located in the center of the frame, which is equipped with
an LCD display and a control panel. The controller handles
error reporting and local and remote control for all cards
installed in the frame. The display and control panel are
assigned to the card in the frame whose SELECT button
has been pushed.
Status Monitor LED
The status monitor LED is located on the front card-edge of
the AMX-1881 module, and is visible through the front
access door of the DENSITÉ frame. This multi-color LED
indicates module status by color, and by flashing/steady
illumination, according to the following chart (which also
indicates fault reporting for this card on the DENSITÉ
frame’s serial and GPI interfaces).
REPORT COLOR (F=flashing)
SERIAL GPI G Y R FR
No errors 
No signal  
No rear 
Test mode 
 : Factory default. User configurable
A “Flashing Yellow” Status LED indicates that the SELECT
button on the front panel has been pushed, and the
controller display and control panel are now assigned to
this card. The LED color assignments for some error
conditions can be reconfigured by the user (see the chart
and menu for details).
User Interface
Pushing the SELECT button will cause the on-card
STATUS LED to flash yellow, and the card identification
and the current status will be shown on the controller card’s
display. The STATUS LED will revert to it’s normal state
upon a second push of the button, or after a short delay.
The messages which may appear are shown in the top line
of the menu chart on page 4.
Example :
SELECT button pushed twice when there is no input
signal connected to the rear panel and the LED is
steady red:
Use the local control panel to access the detailed status
report shown in the STATUS menu on page 4.
Operating Parameter Adjustment
The AMX-1881 has operating parameters which may be
adjusted at the controller card interface. After pressing the
SELECT button on the AMX-1881 card, use the keys on
the local control panel (described in the Controller card
manual) to step through the displayed menu and adjust the
parameters. The menus are shown below.
A M X - 1 8 8 1
A L N O S I G N