OPERATING INSTRUCTIONS
CEILING MOUNT MICROPHONE
Thank you for purchasing TOA's Ceiling Mount Microphone.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of
your equipment.
1. GENERAL DESCRIPTION
The AN-9001 is an electret condenser microphone designed for ambient noise
detection. It is used in conjunction with the AN-001T Ambient Noise Sensor
Input module in the 9000 Series system. It can be mounted in a 1-gang
electrical box (American type) in the ceiling or wall.
2. DIMENSIONAL DIAGRAM
[Front]
[Side]
31
37
[Bottom]
Microphone output terminal
[Hot, Cold, Earth]
Electronically-balanced 3P removable
terminal block.
38
Sensitivity: –5 dB (1 kHz, 0 dB = 1 V/Pa)
42
Output impedance: 200 Ω
[Front view of Main unit]
[Figure when mounted]
1-gang electorical box
(American type, not supplied)
70
3. CONNECTION
The AN-001T and AN-9001 are connected as illustrated below and used to
control the speaker sound volume in a room or such closed space.
AN-9001
Note
Keep the AN-9001 as distant as possible from a sound source
(speaker, water supply pipe, or air conditioning).
If installed close to a sound source, the AN-9001 could sense it
as ambient noise to control the speaker sound volume.
Speaker
[Rear]
Unit: mm
4. INSTALLATION
Step 1. Install a 1-gang electrical box in a wall or ceiling.
Hot Cold Earth
Step 2. Mount the AN-9001's Main unit to the installed electrical box.
Use the 2 screws (No.6-32UNC x 30) supplied with the AN-9001.
Note
The AN-9001 comes with 2 types of machine screws: No.6-32UNC x 30
(unified threads) and M4 x 30 (metric threads). Be sure to use correct
ones.
Step 3. Let both detents on the panel's rear into the detent insertion openings of
the Main unit.
Tips
For detent insertion, refer to the following points:
(A) Align 2 triangular marks on the panel with the extended line
connecting between Main unit's mounting screws.
(B) Align the panel's center hole with the Main unit's microphone.
Step 4. Rotate the panel clockwise.
The panel locks into place by rotating it about 20° in the "Lock" direction.
[Dimensions of
mounting opening]
Detent (2 places)
46 – 50
Panel's rear
9000 Series system
SP OUT
AN-9001
AN-001T
Machine screw
No.6-32UNC x 30 (2 places)
A
2
3
B
Microphone
AN-9001's Main unit
Detent insertion
opening (2 places)
5. REMOVABLE TERMINAL PLUG CONNECTION
Be sure to use the supplied removable terminal plugs for connections to the
removable terminal blocks.
Notes
• Be sure to use shielded cables for audio signal lines.
• Avoid soldering stranded or shielded cable, as contact resistance may
increase when the cable is tightened and the solder is crushed, possibly
resulting in an excessive rise in joint temperatures.
[Cable end treatment]
Solid or stranded cable
Shielded cable
7 mm
7 mm
20 mm
[Connector connection ]
Step 1. Loosen the terminal screw, then
insert the cable.
Tightens
Step 2. Retighten the terminal screw.
(Pull on the cable to ensure it is
securely connected.)
Tip
Recommended slotted screwdriver type:
Screwdriver with 3 mm blade width
Bit shape 3 mm
6. SPECIFICATIONS
Type
Electret condenser microphone
Phantom Power
14 – 26 V DC
Current Consumption
7 mA (at 24 V DC)
Directivity
Omnidirectional (hemispherical)
Impedance
200 Ω
Rated Sensitivity
–5 dB (1 kHz, 0 dB = 1 V/Pa)
Frequency Response
100 – 10,000 Hz
Output Terminal
Removable terminal block (3 pins)
Operating Temperature
–10 to +40°C
Finish
Panel:
ABS resin, white
Frame, Case: Surface-treated steel plate
Dimensions
ø130 x 37 (d) mm
Weight
170 g
Note: The design and specifications are subject to change without notice for improvement.
• Accessories
Removable terminal plug (3 pins) .............. 1
Machine screw No. 6-32 UNC x 30 ............ 2
Machine screw M4 x 30 ............................. 2
Traceability Information for Europe (EMC directive 2004/108/EC)
Manufacturer:
Authorized representative:
TOA Corporation
TOA Electronics Europe GmbH
7-2-1, Minatojima Nakamachi, Chuo-ku, Kobe,
Suederstrasse 282, 20537 Hamburg,
Hyogo, Japan
Germany
Slotted screwdriver
2
1
Loosens
Terminal screw
1
Removable terminal plug
(accessory)
Shielded cable
URL: http://www.toa.jp/
133-05-399-9B
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