User Guide

Crestron CNXTA CNX Telephone Audio Interface Card
NOTE: All inputs listed in the following table require DIGITAL inputs unless noted
otherwise.
CNXTA Symbol Input Descriptions
INPUT(S) FUNCTION(S)
DTMF_1 to 9, 0
Generate standard DTMF 0 to 9 signals.
DTMF
_
*, #
Generate standard DTMF *
(
star
)
and #
(
pound
)
si
g
nals.
DTMF
_
A-D
Generate specialized si
g
nals A to D.
Phone_en
Enables the CNXTA telephone functions. When active, the CNXTA
is toggled from the audio-line functions. (Refer to
Phone_F
in the
next table for related information.
)
Line_en
Enables CNXTA audio-line functions. When active, the CNXTA is
to
gg
led from tele
p
hone functions. This in
p
ut is active b
y
default.
Audio_patch_on
Patches or connects the CNXTA audio lines (both audio in and audio
out) to the telephone line. This allows bi-directional linking to the
telephone line. Audio inputted to or recorded by the CNXTA may be
played through the open telephone line. Telephone audio may be
sent to an external amplifier or be recorded by the CNXTA. (Refer to
Audio_patch_on_F
in the next table for related information.)
Audio_patch_off
Turns off the audio patch (or disconnects) the CNXTA audio lines
(
both audio in and audio out
)
from the tele
p
hone line.
While the CNXTA audio-line functions are enabled, this input sets
the audio lines to On-Line.
While the CNXTA telephone functions are enabled, this input opens
the telephone line to allow the CNXTA to dial out. (Refer to
Off hook F
in the next table for related information.
)
While the CNXTA audio-line functions are enabled, this input sets
the audio lines to Off-Line.
While the CNXTA telephone functions are enabled, this input
disconnects or “han
g
s-u
p
” the CNXTA from the tele
p
hone line.
Play
Activates the playing of a selected message. (Refer to
Play_F
in the
next table for related information.
)
Record
Begins the recording of a new message from the audio input to the
CNXTA. (Refer to
Record_F
in the next table for related
information.
)
Sto
p
Stops the pla
y
in
g
or the recordin
g
of a messa
g
e.
Mute
Cuts-off or mutes (volume level to 0%) the playback volume of a
messa
g
e as it is bein
g
p
la
y
ed.
Dial
Activates the CNXTA dial out function. The telephone number that is
dialed is received throu
g
h the
Dialer
in
p
ut described below.
Delete
Removes or erases a selected messa
g
e.
Message#
This analog input is the storage location reference number of the
CNXTA stored messages. The CNXTA will locate and recall the
s
p
ecific messa
g
e.
Play_volume
This analog input adjusts the playback volume level. (Refer to
Pla
y_
volume
, also listed in the next table, for related information.
)
Dialer
Receives a telephone number string sent to the CNXTA. The
number is dialed when the Dial signal described above is active.
On_hook
Off_hook
Operations & Installation Guide - DOC. 8144A CNX Telephone Audio Interface Card: CNXTA • 19