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Appendices ~ Appendix E: Serial Commands
136
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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 1–4 (select mic input)
Ref. Group 0 = Output, E = Expansion bus
Ref. Channel 1–9, O–Z (select output or E-bus channel)
Example:
#70 REFSEL 1 O 8
On XAP 400 unit 7 (
#70
), the PA/AEC
reference
REFSEL
for mic channel
1
is output (
O
)
12
.
REFSET - Reference channel setup
This command selects/reports the output the reference channel tracks.
Command form: DEVICE
REFSET
<Channel> <Group>[Value]
Argument details
Name Description
Device 0–7 or * to select all units
REFSET Command
Channel 1–4 (select Virtual Reference number)
Group 1–9 (select output channel to track)
Value 0 = none
Example:
#73 REFSET 2 4
On XAP 400 unit 3 (
#73
), virtual reference (
2
) will
track gain changes mde on output channel 4.
RING - Ring Indication
This command indicates a ringing line. This command is reportable only. It cannot
be queried or set.
Command form: DEVICE
RING
<Channel>
Argument details
Name Description
Device 0–7 or * to select all units
RING Command
Channel See Groups and Channels, page 103
Example:
#71 RING 1
On XAP 400 unit 1 (
#71
), the hybrid (
1
) will detect an
incoming
RING
.