2- 14
TEL-14 TWO-CHANNEL TELEPHONE INTERFACE
In this type of connection, there is a possibility the echo canceller
DSPs in the two TEL-14 cards will interfere with each other and
cause instability. Note that setting the "intercom echo cancellation"
(S6-2) and "telephone echo cancellation" (S6-3) option switches to
OFF on
one
of the TEL-14 cards will improve this condition but result
in slightly more sidetone in that card.
PARTY LINE DIAL-IN MODE
Two TEL-14 lines may be programmed into the same party line.
The TEL-14s should be set to "auto answer" and "auto
disconnect" to allow people to use telephones or cellular phones
to connect to and leave the party line at will. The callers may
communicate with each other, as well as anyone on the party line.
To set the TEL-14's controls for party line dial-in mode:
1.
The
“auto disconnect” option switches (S1-2 through S1-5) should be at the
factory set ON position. This will allow the TEL-14 to disconnect
when the call ends.
2.
Set the
“Receive Suppression Disable” option switch (S6-1) to OFF.
3.
If using revision 11 Matrix Plus 3 intercom software, set the "Matrix
Control" option switch (S6-5) to OFF. This will prevent intercom
users from disconnecting people who may be speaking from
telephone line to telephone line.
4.
Set the remaining option switches to ON, the factory set
position, or as otherwise required.
In this type of connection, there is a possibility that excess telephone
line noise may interfere with communication on the intercom party
line, or that poor telephone connections could cause instability in
the two TEL-14 cards. For this reason it is recommended to turn
OFF the
“receive suppression disable” option switch S6-1 on each
TEL-14 line programmed into the party line. This will allow the TEL-
14 to automatically quiet the telephone line when there is no
incoming voice.
CONFIGURATION
Refer to the
Eclipse Configuration System Manual
for more information
on configuring the TEL-14 telephone interface.
Summary of Contents for ECLIPSE TEL-14
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