Installation Of Double-Sided Type Speakers; Installing The Safety Wire - Toa PW-1230DB Instruction Manual

7.2. Installation of Double-Sided Type Speakers

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.
[Installation example]
Positve pressure wave : "Positive"
Negative pressure wave : "Negative"
Negative
Legend
Front
(

7.3. Installing the Safety wire

wARNING
Notes
• N o 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.
10
Positive Positive Negative
Logo )
Connect a safety wire to the unit to prevent it from falling.
If not connected, the unit could fall, resulting in personal injury.
Secure to rigid structure such as
iron frame or steel beam.
Safety wire
Eyebolt
* The surplus length refers to the length with enough slack.
Negative Positive
Joist or bar
The state that the
safety wire is tight
Positive Negative