AEQ DIGITAL COMMENTARY UNIT Customer's Manual page 59

3.4.2.5.CM : LOCAL T' BACK section
- INTERCOM is established from the monitor module (MM) to any circuit of any
CU associated with the CCU.
- 4 wire circuit is established with a REMOTE INTERCOM.
- CM has its REC key on IDENTIFIER section in UNLOCK mode to record an
ID message.
• CALL RECEIVED: This indicator blinks, when there is a commentarist at the
CU who wishes to establish communication. The indicator is reset on
pressing CONNECT.
• CONNECT: This push button establishes the circuit with the related channel
illuminating the led associated with the switch and resetting the
communication with any module that has been previously established. To
speak, the button PTT must be pushed. (The PTT is described later in the
monitor module (MM) section).
This key is also used to call the commentator. This action ca uses to ring on
the commentator side while pressed. When this key is pressed also causes
the LCD on TECH COM1 in the CU to blink.
All the commentators will listen the ringer and the technician to talk through
the ear/s programmed with the CUE/LT' B ROUTING control on the CUE
section previously described.
To answer the call, a commentator must press the PTT button, called
INTERCOM TECH, stopping the ringer and finishing the CU TECH COM1
LCD blinking.
Both intercommunication circuits are independent, in such a way both
technician and commentator may talk at the same time if both of them push
its own PTT button. Several commentators may also answer the call at the
same time, listening the technician their mixed voices.
On this section are controlled the
local
establishment
between CCU technician and CU
commentators.
It is not possible to establish the
LOCAL T' BACK circuit if the system is
busy with other incompatible functions
as:
Digital Commentary System
-59-
communication
and indications
circuits