Page 14
IBVR20 software 8.43.doc
Issue 1
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| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 00|Off |Sens 00 |
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↑
To select surveillance, move the cursor along until it flashes beneath the surveillance out
window shown above.
If surveillance is not required press 0 and the display will show 00.
If surveillance is required press 9 and the display will show 09.
The loudspeaker lines must be terminated with end of line units BEL1.
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| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 09|Off |Sens 00 |
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↑
Move the cursor along using the arrow keys until it flashes beneath the surveillance
frequency window.
If surveillance is not required press 0 and the display will show Off. This will disable the
associated loudspeaker line faults.
If surveillance is required press and release the + key until you have selected the required
frequency and mode.
Note for normal surveillance operation only use 30Hz or 20KHz.
Example 1:
Frequency 30Hz, loudspeaker line A monitored only
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| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 09|30Hz A |Sens 00 |
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Example 2:
Frequency 20KHz, loudspeaker lines A and B monitored.
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| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 09|20K A+B |Sens 00 |
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Example 3:
Frequency 20KHz, loudspeaker line A and reserve amplifier monitored.
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| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 09|20K A+Res |Sens 00 |
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Example 4:
Frequency 20KHz, loudspeaker line A, line B and reserve amplifier
monitored. A&B return signals.
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| OUT 01|CHIME|SURV (A=09 B=09)|ANS (-00 |
| | 00|Out 09|20K A+B+Res|Sens 00 |
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↑
If surveillance is selected, move the cursor along until it flashes beneath the surveillance
out window. Adjust the level using the + or – keys so that A and B BEL1 return signals
=09, this is the typical return value for a 10 Volt loudspeaker line surveillance signal. If
you have difficulty in obtaining a return signal of 09, please check the loudspeaker line.
