37
SPA-V2 Public Address & General Alarm System
Installation & Configuration Manual
A100K10370
2.9.7 Volume Adjustment on Amplifier EA1400/EA1600
Volume adjustment can be done through
the potentiometers for Volume,
Bass, and Treble.
If the Volume potentiometer is set to the mid-point position and
1Vrms/1kHz is used as input signal, 100Vrms should be measured on
the “100V” loudspeaker output.
For Volume, the control range is between -14dB and +6dB.
For Bass and Treble, the control range is between 0dB and -10dB.
2.10
Loudspeaker Power Consumption
It is important to calculate the total power consumption of the
loudspeaker network. The consumption must be adjusted to the
system’s total amplifier power capacity.
Use the actual installation, project documentation and especially the
cable connection diagram as a starting point for the calculation, taking
the following into consideration:
● For each zone, count the number of loudspeakers and do the power
tappings in accordance with available output power for the zone.
● Make sure to NOT exceed the total amplifier output capacity.
●
Power tapping options can be found in the loudspeaker datasheet.
●
The type of Volume Control depends on the number of loudspeakers
in a single or A-B system.
2.11
Alarm Setup
A DIP switch labeled HEXSW1 is used set all required configurations of
alarm tones.
One of fourteen separate alarms can be set using the HEXSW1 switch.
For all alarms other than the ABANDON alarm, GENERAL has the
highest priority followed by ABANDON and then MANUAL.
L
An example of a custom alarm configuration can be found in Appendix B.
2.11.1
Alarms and Priorities
GENERAL alarm has the highest priority, followed by ABANDON alarm,
while MANUAL alarm has the lowest priority. So, if one alarm with lower
priority is ongoing and an alarm with higher priority is activated, this
alarm will take over and be heard.
2.11.2
Possible Configuration of Alarm Relay Boards
The boards are:
●
SPA-AL-REL-V2 (one board with 3 relays)
●
SPA-AL-REL6-V2 (one board with 6 relays)
