Operation Examples; Audio Monitoring Operation - rcf RB 3300 Manual De Uso

OPERATION EXAMPLES

The examples below can provide further clarification of the operation of the A.C.U.s.
Example 1
ACUs PRESENT
IN THE GROUP
ACU 1
ACU 2
ACU 3
Example 2
ACUs PRESENT
IN THE GROUP
ACU 1
ACU 2
ACU 3
Example 3
ACUs PRESENT
IN THE GROUP
ACU 1
ACU 2

AUDIO MONITORING OPERATION

A.C.U. NOT MONITORED
When the A.C.U. is not monitored by means of the CP 3100 control unit, its operation is as follows.
a. The "M12" and "M13" terminals are connected with each other, and the "monitor bus" line passes through the A.C.U. without being in-
terrupted. Therefore, any other A.C.U.s present in the system, connected upstream from this line with respect to the CP 3100 control unit
have the possibility to supply the "monitor bus" line with the monitor signal related to the speaker output of the amplifier under their con-
trol.
A.C.U. MONITORED
When the A.C.U. is monitored by means of the CP 3100 control unit, its operation is as follows.
a. The "M12" and "M13" terminals are not connected with each other, and the "monitor bus" line is interrupted. Any other A.C.U.s present
in the system, connected upstream from this line with respect to the CP 3100 control unit, no longer have the possibility to supply the
"monitor bus" line with their monitor signal.
b. The monitor signal related to the speaker output of the amplifier controlled by the unit is directed to the "M13" output to supply the "mo-
nitor bus" line and drive the "monitor" input of the CP 3100 control unit.
OPERAT.
TYPE
MODE
NORMAL AUTOM.
BACKUP AUTOM.
OPERAT.
TYPE
MODE
NORMAL AUTOM.
BACKUP AUTOM.
OPERAT.
TYPE
MODE
NORMAL MANUAL
BACKUP MANUAL
DESCRIPTION OF ACU OPERATION
a. If the primary amplifier controlled by ACU 1 breaks down, the
backup amplifier controlled by ACU 3 is automatically activated.
b. If, subsequently, the primary amplifier controlled by ACU 2
breaks down, only an eventual alarm related to that unit is si-
gnalled.
c. If, subsequently, also the backup amplifier controlled by ACU 3
breaks down, this unit is automatically disactivated. If a second
backup amplifier is present, (not controlled by an RB 3300
board), it is automatically used in place of the first backup am-
plifier.
DESCRIPTION OF ACU OPERATION
a. If the primary amplifier controlled by ACU 2 breaks down, the
backup amplifier controlled by ACU 3 is automatically activated
in its place.
b. If, subseqeunty, the primary amplifier controlled ACU 1 breaks
down, only the eventual alarm related to that unit is signalled.
c. If, subsequently, also the backup amplifier controlled by ACU 3
breaks down, the unit is automatically disactivated. If a second
backup amplifier is present (not controlled by an RB 3300
board), it is automatically used in place of the first backup am-
plifier.
DESCRIPTION OF ACU OPERATION
a. If the primary amplifier controlled by ACU 1 breaks down, no
operation takes place except for an eventual alarm related to
that unit. Activation of the backup amplifier controlled by ACU
2 must be controlled manually by distactivating the ACU 1 in
alarm and then activating the ACU 2 in alarm status.
b. If, subsequently, also the backup amplifier controlled by ACU 2
breaks down, no operation takes place except for an eventual
alarm related to that unit. Activation of the second backup am-
plifier (where present and not controlled by an RB 3300 board)
must be controlled manually by disactivating the ACU 2 in alarm
status.
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