952.050UK User Manual
Microphone controls
Side panel
Operation
For speech and announcements, the L50U is supplied with a hard-wired microphone handset, which clips
onto the top of the housing for storage. Unclip the handset and hold the microphone (2) up to your
mouth, press in the push-to-talk button (1) and speak. The volume is adjusted by an edge roller control
(3) on the right-hand side of the handset. Sliding the push-to-talk button upwards when pushed in will
latch it on, sliding it back down will unlatch the button.
The side panel has controls for Whistle (4) and Siren (5) alerts. Pressing the Whistle button emits a loud
alarm from the L50U, releasing this button stops the alarm. Pressing in the Siren button activates a loud
siren alert, this button is latched and the siren will continue until the button is pressed again.
Also on the side panel is a button for USB (6), which activates the rear-mounted USB/SD/AUX player. This
button is also latched and the player functions are detailed below.
A 6.3mm jack MIC input (8) is provided for an optional wired microphone. To use this, press in the
latching MIC button (9). The level of the MIC input is governed by the microphone volume control (7)
Note: The Whistle and Siren alerts will not sound properly if the USB or MIC buttons are pressed in.
1.
Push to talk switch (with lock)
2.
Microphone
3.
Volume control edge roller
4.
Whistle button
5.
Siren switch
6.
USB switch
7.
Microphone volume
8.
Microphone input (6.3mm jack)
9.
Microphone on/off switch
10. 12Vdc input (DC5521 jack)