CEILING MOUNT MICROPHONE
OPERATING INSTRUCTIONS
AN-9001
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
Lock
Release
Hot Cold Earth
31
37
70
ø130
70
70
83.5
104
83.5
90 – 98
46 – 50
42
38
[Front] [Side] [Rear]
[Bottom]
[Front view of Main unit] [Figure when mounted]
[Dimensions of
mounting opening]
1-gang electorical box
(American type, not supplied)
Unit: mm
Microphone output terminal
[Hot, Cold, Earth]
Electronically-balanced 3P removable
terminal block.
Sensitivity: –5 dB (1 kHz, 0 dB = 1 V/Pa)
Output impedance: 200 Ω
4. INSTALLATION
Step 1. Install a 1-gang electrical box in a wall or ceiling.
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.
2
3
A
B
Panel's rear
AN-9001's Main unit
Machine screw
No.6-32UNC x 30 (2 places)
Detent (2 places)
Microphone
Detent insertion
opening (2 places)
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.
9000 Series system
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.
SP OUT
AN-001T
Speaker AN-9001
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]
7 mm 7 mm
20 mm
Solid or stranded cable Shielded cable
[Connector connection ]
Step 1. Loosen the terminal screw, then
insert the cable.
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
Tightens Loosens
Terminal screw
Slotted screwdriver
Shielded cable
1
2
Removable terminal plug
(accessory)
1
Bit shape 3 mm
Electret condenser microphone
14 – 26 V DC
7 mA (at 24 V DC)
Omnidirectional (hemispherical)
200 Ω
–5 dB (1 kHz, 0 dB = 1 V/Pa)
100 – 10,000 Hz
Removable terminal block (3 pins)
–10 to +40°C
Panel: ABS resin, white
Frame, Case: Surface-treated steel plate
ø130 x 37 (d) mm
170 g
Type
Phantom Power
Current Consumption
Directivity
Impedance
Rated Sensitivity
Frequency Response
Output Terminal
Operating Temperature
Finish
Dimensions
Weight
6. SPECIFICATIONS
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:
TOA Corporation
7-2-1, Minatojima Nakamachi, Chuo-ku, Kobe,
Hyogo, Japan
Authorized representative:
TOA Electronics Europe GmbH
Suederstrasse 282, 20537 Hamburg,
Germany
133-05-399-9B
URL: http://www.toa.jp/
