Specifications

FRONT PANEL OPERATION
Pag. 12
5 FRONT PANEL OPERATION
5.1 SEND CONTROL
It adjusts the level of signal which is sent to the telephone caller via the Send XLR connector.
Send control is applied to both 2 wire and 4 wire ** connections (selectable through 4W button).
Send signal may be composed by:
− the one coming from
‘Send’ XLR connector (on the rear panel)
− the Meeting signal coming from the Meeting bus (
see parr. 4.4 and parr. 5.4). If jumper J12 on the
mother board (see Chapter 0) is on its A position (factory preset), connection to Meeting bus is always
enabled. If J12 is in its B position, Meeting signal is available only while MT button on the front panel
pressed.
NOTE: Audio sent to the caller must be a mix-minus. Mix-minus (N-1) is a mix of all audio being sent to the
Send XLR connector of the hybrid, minus the incoming caller audio.
** available as an option (Macrotel PLUS version).
5.2 RECEIVE CONTROL
It controls the level of the signal incoming from telephone caller
through 2 wire or 4 wire connection (see 4W
button).
The ‘received’ signal is provided on the Receive XLR connector (rear panel).
With MT button pressed, received audio may be sent to the Meeting bus, too (see Block Diagram –
Chapter 6).
5.3 4 W BUTTON**
It allows reception and transmission from/to 2 WIRES lines (button released / LED off) or from/to 4 WIRES
lines (button depressed / LED on).
** 4 Wire ouput is available as an option (Macrotel PLUS version).
5.4 MT BUTTON
Macrotel 7
− With MT button depressed on one
channel, the signal received from the related caller is automatically
sent to the other caller** and is provided on Meeting SubD connectors (f.i. for cascade connection of
several units)
− With MT button depressed on both
channels, phone callers can communicate to each other and the
signal received from both callers is sent to both SubD Meeting connectors (f.i. for cascade connection of
several units).