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Appendices
~ Appendix E: Serial Commands
RAMP – Ramp Gain Adjustment
This command starts/stops the gain ramp for an input, output, or assignable
processing block. There is no query for this command.
Command form: DEVICE
RAMP
<Channel><Group><Rate>[Target]
Argument details
Name
Description
Unit
Device
0–7 or * to select all units
RAMP
Command
Channel
See Groups and Channels, page 97
Group
I, O, M, L, P, T, R (1, 2, 3, 5, 16, 17)
Rate
-50 to 50
dB/s
If value = 0. the ramp will stop
If value < 0, the gain will ramp down
If value > 0, the gain will ramp up
Target
-65 to 20
dB
If null in text, the ramp will use the
channel’s maximum and minimum for a target
Example:
#57 RAMP 5 L 6 12
On XAP 800 unit 7 (
#57
), the gain (
RAMP
) on
L
ine Input
5
will increase at a rate of
6
d
B/sec until the
12
dB point is reached.
REFSEL - PA/AEC Reference Select
This command selects/reports which output is used for each mic as a reference for
power amp adaptation mode and acoustic echo cancellation where applicable. There
can be only one selection per mixer.
Command form: DEVICE
REFSEL
<Channel> [Ref. Group] [Ref. Channel]
Argument details
Name
Description
Device
0–7 or * to select all units
REFSEL
Command
Channel
1–8 (select mic input)
Ref. Group
0 = Output, E = Expansion bus
Ref. Channel
1–9, O–Z (select output or E-bus channel)
Example:
#50 REFSEL 1 O 8
On XAP 800 unit 7 (
#50
), the PA/AEC reference
REFSEL
for mic channel
1
is output (
O
)
12
.
Summary of Contents for XAP 800
Page 1: ...XAP 800 Audio Conferencing System Installation Operation Manual ...
Page 6: ...vi Technical Services Group 1 800 283 5936 USA 1 801 974 3760 ...
Page 26: ...20 Technical Services Group 1 800 283 5936 USA 1 801 974 3760 ...
Page 90: ...84 Technical Services Group 1 800 283 5936 USA 1 801 974 3760 ...
Page 135: ...129 Technical Services Group 1 800 283 5936 USA 1 801 974 3760 Appendices Appendix F Warranty ...
