Eela Audio EA815/2 Telephone hybrid
CONNECTIONS
The
SEND
and
RECEIVE
signals are on
XLR
connectors. The
PTT
-connection and the
TELEPHONE
-connection are on universal telephone connectors. The
REMOTE
connections are
on a
D-9
connector. On this
D-9
connector are also the
SEND
and
RECEIVE
signals and an
optocoupler-
RING
output available. The pinning of these
connectors are drawn elsewhere in
this manual.
INITIAL SETUP
*
Connect the unit to the mains, a mixing console, a telephone and a PTT connection.
*
Leave the
HYBRID ON
switch (green button) off and make a connection with a remote
caller. It is the best to use a distant connection; a local or house-line can give other
results. If possible, have the caller on the other end his mouth piece covered or simply
keep him/her quiet.
*
Then press the
HYBRID ON
switch. After a short delay of 0.7 seconds the
EA815
is
switched on.
*
Send programm, preferably speech at nominal level, to the line and use the console PFL
system to listen to the hybrid output. Adjust the
SEND
level on the
EA815/2
in such a way
that the limiter LED on the front of the
EA815/2
only lights up at peaks in your send
signal.
*
Then adjust both balance controls
(R- and C-balance)
, behind the frontpanel, for
minimum bleed through from the send signal to the output. Use first the center position of
both controls and adjust them several times untill a clear minimum is reached. Try
eventually several connections to get the best compromise. Only in case the PTT has
done changes on the exchange or line a new line-up is needed.
*
Adjust the
RECEIVE
gain until the required level is reached.
USING PROCEDURE:
*
When an outgoing call is made, the
EA815/2
is still switched off. The connection has to be
made with the connected telephone. Once the connection is made the
EA815/2
can be
switched on. The phone is now disconnected.
*
In case of an incoming call the phone will ring normally, and the call LED on the
EA815/2
lights up. You can either pick up the phone or switch the
EA815/2
on. When the
unit is switched on, the phone is disconnected again.
ACCESSORIES:
Also available are a 19" rack mounting kit for one unit (an empty housing and 19" brackets are
supplied under code EA800/3) and a rackmounting kit for mounting with another unit from the
EA815 / EA816 series equipment (19" brackets under code EA800/4).
