Extron Electronics ISM 824 - Manual (Page 50)

Operation and Setup, cont’d
ISM 824 Integration Scaling Multiswitcher • Operation and Setup 3-18
Input audio level (gain) and output audio volume
Viewing input audio level and output audio volume
The audio level (gain) of each input can be viewed and adjusted through a range of
-18 dB to +24 dB, in 1 dB steps. Adjustment can be made from the front panel,
RS-232, or via Ethernet connection.
N See chapter 4, “SIS ™ Programming and Control” , for RS-232 commands,
chapter 5, “ISM 824 Software” for Windows Control Program , or chapter 6,
“HTML Operation”, for Ethernet commands.
The audio volume level of each output can also be viewed and adjusted through
a range of 0 to 64 dB from the front panel (at 1.0 dB per step), or via RS-232 or
Ethernet connection using Extron Simple Instruction Set (SIS ™ ) commands.
Adjustment is attenuation only.
To adjust the input audio level and output audio volume level, do the following:
1
. Press the Esc button to clear all pending changes and reset the LCD.
2 . Press and hold the Audio button for 3 seconds, until it flashes red. The View,
Esc, and one input button also lights red (see figure 3-25).
N The input button that lights is the last input button pressed in the previous front
panel operation made prior to this viewing.
The LCD shows the input audio level (gain) for the lit input (see figure 3-25),
and the output audio volume for the last output selected.
N The output may not be tied to the lit input when:
(1) the input is not tied to any output, or
(2) the input is tied to multiple outputs
C O N T R O L
PRESET ENTER ESC VIEW
I / O
VIDEO AUDIO
C O N T R O L
PRESET ENTER ESC VIEW
1 2 3 4 5 6 7 8
INPUTS
Step 1.
Press the Esc button to
clear all selections.
The Esc button flashes green once.
Step 2.
Press and
hold the
Audio button until it
blinks
red.
The View and Esc buttons light red.
The last input button pressed lights red.
O
u t
#6 V
o
l =
000
N The LCD shows the current
audio settings for the lit input
and a tied output.
I
n
#5 G
ain =
-18
Figure 3-25 — Steps 1 and 2 for viewing the audio settings
3 . If the input button lit is not the desired input, press and release the relevant
input button. That button lights red and the other input button extinguishes.
The LCD changes to show the input audio level for the selected input.
N The output readout on the LCD does not change at this time.
N If no buttons are pressed for 30 seconds after step 2, the audio adjustment mode
times out, and all buttons extinguish.
4 . If the LCD output readout is not the desired output, press and release the
applicable output button. That button lights red and the input button
extinguishes. The LCD changes to show the output audio level for the input.