Contrast; Alarm Speaker - DPS Telecom NetGuardian-16S User Manual

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8.2.4 Contrast

Contrast
The Contrast command provides controls for adjusting the contrast of the LCD.
To scroll to the next menu command, press the – button.
To adjust the contrast, press Sel to select the command. The arrow cursor (>) will move to the right of the
colon (:) in Contrast: to indicate that the command submenu is selected. Press the Ack/+ or – button until
you're satisfied with the contrast setting, then press Sel to make your selection.
To exit the Command Menu and revert to the default contrast setting, press Menu.
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Alarm Speaker

The NetGuardian-16S's alarm speaker emits distinctive tones for three different circumstances:
1. If the integrated Building Status Unit alarm sounds, the speaker will emit a continuous tone. If the
BSU is in Standard Mode, the sound will continue until the CopperCom CopperController issues a
Silence Alarm command. To request a Silence Alarm command, press the Ack/+ button. If the BSU is in
Standalone Mode, pressing the Ack/+ button will silence the speaker immediately.
2. If there is an Ethernet connection failure, the speaker will emit a high-low warbling tone. Press any
front panel button to silence the speaker.
3. If a "reportable" discrete alarm occurs (that is, an alarm that is configured to trigger an SNMP Trap
or pager notification), the speaker will emit an intermittent beep. Press any front panel button to silence
the speaker. If you do not silence the speaker, the beep will continue for a few seconds.. Silencing the
speaker will allow the next alarm, if any, to sound.
The Sound off command on the LCD Command Menu (see Section 8.2.1, "Sound off") will suppress sounds
from Ethernet connection failures and discrete alarms, but will not prevent BSU alarms from sounding.
Fig. 8.2.4.1. Contrast command