Toa PW-1430SW - Manual (Page 10)

10
7.3. Installing the Safety wire
7.2. Installation of Double-Sided Type Speakers
Connect a safety wire to the unit to prevent it from falling.
If not connected, the unit could fall, resulting in personal injury.
wARNING
Secure to rigid structure such as
iron frame or steel beam.
The double-sided type speakers (PW-1230DB/1230DW/1430DB/1430DW) emit positive pressure wave from
their front (the side with TOA logo affixed) and negative pressure wave from their rear.
It is recommended to orient these speakers as shown below when installing them in platforms or long narrow
passages.
Positve pressure wave : “Positive”
Negative pressure wave : “Negative”
Positive Positive Positive Positive Negative Negative Negative Negative
Legend
Front
( Logo)
[Installation example]
Within 30 cm
(1
1.81")
(Surplu
s length*)
Joist or bar
The state that the
safety wire is tight
Safety wire
Eyebolt
Notes
• No safety wire is supplied with the speaker. Separately prepare a safety wire that meets the following
requirements.
· The diameter of the safety wire must be 2 mm (0.08") or more.
· The surplus length* of the safety wire must be within 30 cm (11.81") from the state that the safety wire is tight.
• Never loosen the eyebolt.
If loosened, rain or water gets into the speaker, resulting in speaker failure.
* The surplus length refers to the length with enough slack.