OWS Standalone Manual
MA380 - Rev. 2.4
3.7 Configurations
3.7.1 DIP switch settings
The DIP switch on the OWS main control board (SUB860) is used to configure the system for different
applications. The default switch settings are all OFF. This DIP switch needs to be correctly set as shown
in Table 15 below, to meet the application requirements.
Table 15 DIP Switch Settings
Function Status
Descriptions
Time delay between
Alert/Voice and
Evac/Voice in auto
mode
S1 S2
OFF OFF Evacuation tone / voice messages only (no delay).
ON OFF One minute delay between alert tone/voice and Evac tone/voice message.
OFF ON Three minutes delay between alert tone/voice and Evac tone/voice message.
ON ON Five minutes delay between alert tone/voice and Evac tone/voice message.
Enable/disable
voice with Alert
S3
ON Voice message enabled with alert tone.
OFF Voice message disabled with alert tone.
Enable/disable
voice with Evac
S4
ON Voice message enabled with evacuation tone.
OFF Voice message disabled with evacuation tone.
Trigger input
Latch/non-latch
S5
ON Trigger input is latching. Must be disabled in manual mode
OFF Trigger input is non-latching, follows the trigger input in auto mode
AU / NZ Convention
configuration
S6
ON
New Zealand convention, tones / messages comply with the AS2220.1 and
the NZS4512.
OFF
Australian convention, T3 tone / message comply with the ISO7731, ISO8201
and AS1670.4.
3.7.2 RS232 and RS485 selection
The OWS main control board supports serial communication, the signal level can be configured to either
RS232 or RS485 via jumper JP2 on the main control board. To download the audio sound file from a
PC, the jumper needs to be set to the RS232. To support remote desktop microphones, the jumper
needs to be set to the RS485 level.
Jumper 1-2 installed for RS232 option,
Jumper 2-3 installed for RS485 option.
3.7.3 Voice message programming
The alert and evacuation tones are digitally generated in the firmware. The alert and evacuation voice
messages are pre-recorded and stored in a flash memory. The flash memory size is 524288 bytes which
can provide up to 30 seconds of voice message at sample rate 22.05 KHz The digital sound is in 8-bit
resolution PCM format.
The digital sound files used in the OWS can be created using PC software such as the Sound Recorder
provided by Microsoft Windows as an accessory software. The sound files then can be uploaded from
a PC via RS232 connection to CON12 on the OWS main control board. If special tones or messages
are required, please contact Brooks office to organise the engineering department to upload the required
files into the main OWS control board.
To Next Page