AEV ITB302 - dual digital telephone hybrid
AEV Broadcast Srl via della Tecnica 33, 40050 Argelato (BO) ITALY
www.aev.eu
- mail :
8
On telephone lines
Connections to mixer and lines
The connection of AEV ITB-302 to 2-wire telephone lines is made by inserting the telephone
cable into the corresponding socket on the ITB-302 using a standard telephone line connector.
Other telephonic equipment may be connected by inserting a standard connector in the
appropriate ITB-302 socket. This is useful for making calls and checking the line. Its onnection
is optional.
For connection to 4-wire lines it is advisable to check input and output connections.
The mixer output should be connected (balanced or unbalanced) to the hybrid’s SEND input,
whilst the feedback (RECEIVE) can be connected to the cue input of the same mixer.
WARNING: T
AKE GREAT CARE I N CONNECTI NG LOOP
-
BACKS TO THE MI XER
. F
AI LURE TO DO SO CAN GENERATE
HUM
,
ECHOES AND
“
TUBE
”
EFFECTS
.
Hanging-on a line
To hang-on a line, simply press the (OFF HOOK) button located on the front panel, or on the
remote control. If the autolock function has been enabled, the unit will automatically hang-on
the line after a few rings.
Adjusting levels
Once the line has been seized, adjust the send and receive levels by injecting the 1 KHz test
signal with the corresponding button, or with a standard signal, and calibrate the levels for a
near zero reading on the LED meters.
Conference mode
Once the line has been hang-on connection is made and maintained. The MEETING button
connects the line to the meeting circuit. In this configuration, the lines that have the relevant
MEETING button pressed, will be connected to each other enabling an audioconference.
Releasing a line
Pressing the OFF HOOK button a second time, on the front panel or on the remote control, it
releases the line. It is equivalent to putting the handset on-hook.
Remote control operation of mixer
The remote control allows the AEV ITB-302 to be installed in a conveniently located rack near
the telephone line sockets. Once the levels have been adjusted on AEV ITB-302 , the remote
control allows control of the following functions: on-hook, off-hook, conference mode etc.,
directly from the mixer or from the remote telephone location, for simple and rapid operation.
Expansions
M
ORE THAN
2
LI NES
AEV ITB-302 is expandible, allowing connection of more than one unit in cascade, all remotely
controllable and able to perform audioconferencing. No modifications are necessary, except for
the addition of further units and their corresponding cables.
4 -wire lines
AEV ITB-302 features an interface for normal 2-wire lines and, as an option, for 4-wire lines.
This allows, amongst other things, connection to cellular telephones.
