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CONCEPTSYSTEM EXAMPLESCONNECTIONSPRODUCTSBLOCK DIAGRAMS
3
CONNECTIONS
WA-MA120N/WA-MA240N
CONCEPT SYSTEM EXAMPLES CONNECTIONS PRODUCTS BLOCK DIAGRAMS
3
CONNECTIONS
WA-MA120N/WA-MA240N
Battery Connection
• Make sure the external battery is a 24 V Lead Acid battery (or two 12 V
batteries in series connection). Panasonic Corporation holds no
responsibility for any Amplifier fault operation or other inconveniences
resulting from using any other batteries except that indicated above.
• Use the formula below to determine the battery capacity that is
necessary to support the amount of operating time required. Note,
however, that the actual amount of operation time provided by a battery
varies greatly in accordance with the Amplifier's signal output level.
Operation On/Off Control
• Operation On Control and Operation Link Control
The Amplifier can be put into the operation mode externally by no-voltage make contact. The Amplifier can also cause other linked
equipment to enter operation mode when it enters the operation mode.
Important:
• In order for external operation control to be performed, the POWER switch on the back of the Amplifier must be ON, and the OPERATE switch
on the front must be OFF so the Amplifier is in the non-operation (standby) mode. The Amplifier's current operation/non-operation mode is
determined by the relationship between external control (no-voltage make contact) status and the Amplifier's OPERATE switch setting.
• Operation Off Control
The Amplifier can be put into the non-operation (standby) mode externally by no-voltage make contact. Use this capability when you want
to terminate business announcements from this Amplifier during announcements from external emergency announcement equipment.
Important:
• In order for operation off control to be performed, the POWER switch on the back of the Amplifier must be on, and the OPERATE switch on the
front must be ON so the Amplifier is in the operation mode. The Amplifier's current operation/non-operation mode is determined by the
relationship between external control (no-voltage make contract) status and the Amplifier's OPERATE switch setting.
Caution:
Be sure to turn off power (AC) before installing or removing a battery. To
protect the battery, provide one of the fuses shown below between the battery
+ terminal and the Amplifier's + terminal.
Battery Capacity [AH] = Amplifier Normal DC Consumption
Current [A]* x Required Operating Time [H]
* Based on IEC60065 standards. Refer to SPECIFICATIONS (page 48).
WA-MA120N: 15 A
WA-MA240N: 30 A
Take care to ensure proper battery polarity and to avoid shorts while working.
Caution
DC+24V
-
+
Other device power on link
No-voltage make contact
No-voltage make contact
Make
Amplifier's OPERATE
switch position
Break
Operation Mode
Operation Mode
Non-operation Mode
Operation Mode
Not Depressed (OFF)
Depressed (ON)
No-voltage make contact
Make
Amplifier's OPERATE
switch position
Break
Non-operation Mode
Non-operation Mode
Non-operation Mode
Operation Mode
Not Depressed (OFF)
Depressed (ON)
No-voltage make contact
Zone Expansion Connection
• You can expand the number of zones using multiple Amplifier units.
• The illustration below shows the concept behind zone expansion. When connected this way the master Amplifier uses all
circuits but additional Amplifiers (Slave 1, 2 etc.) only use the built-in power amplifiers and zone output. This provides the
maximum rated output of the Amplifier for each group of three zones.
• The maximum number of Amplifiers (including the master and slaves) is 10, which means there can be to 30 zones.
Important 3
Important 3
Important 1
Important 2
Important 2
Amplifier (Master)
Amplifier (Slave 1)
Amplifier (Slave 2)
To Amplifier (Slave 3)
Connect to
each input device
To zone 1 to 3 speakers
To zone 4 to 6 speakers
To zone 7 to 9 speakers
Important 3
Important 1
Important 1
Important 2
• All connect the ALL CALL BUS connectors as shown in the illustration. All-zone announcement will not be possible if these
connectors are not connected.
Important 1:
On all of the Amplifiers, set the UNITS SET switches to the total number of Amplifiers.
Example: In the case there is one master and four slaves, set the UNITS SET switches of all of the Amplifiers to 5.
Important 2:
Never remove the plug from the RCA pin jack of the master Amplifier. No sound will be output in any of the zones
if you do. For all of the slave units, remove the plug and then do the connections.
Important 3:
Connect when you want operation control activated on all of the Amplifiers. For the connection shown in the illustration here, entering the
operation mode on the master also puts all of the slaves into the operation mode as well. Note, however, that the slaves must be in the standby
mode before the master goes into the operation mode.
For information about operation on/off control, see page 24.