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8AA9992 - D1 - 10/11/2000 - UK -

Fig. 1

Fig. 2b

Fig. 3

Fig. 2a

3.2 Product overview (Fig. 2)

- Knockouts 

Q

T

 for cable inlet.

- Knockouts 

W

E

 for attachment of housing.

- Knockout 

R

 back tamper contact.

- Speaker 

Y

.

- WMC 12 circuit board 

U

.

3.3 WMC 12 circuit board (Fig. 3)

- E-Bus connection 

}

.

- Audio connection 

{

 to central control unit.

- Audio connection 

I

 to WAC 11 or WAS 11.

- Tamper input 

O

 for WAC 11 or WAS 11.

- LED 

Q

, flashes when E-Bus is o.k.

- LED 

R

, flashes to outside during monitoring (microphone  

 

   active).
- Address button 

W

.

- Switch 

E

 for "microphone active" LED.

- Tamper switch 

P

.

- Microphone 

Y

.

- Potentiometer 

T

 for speaker volume.

- Potentiometer 

U

 for microphone sensitivity.

1. Product description

The WAC 12 is used to verify audio alarms.  It is fitted with a 
speaker and microphone.  It can be controlled through the E-
Bus, with the audio signal connected to the central control unit 
via an audio module (e.g. WMA 11).  The WAC 12 also serves as 
a master for the unaddressable WAC 11 and WAS 11.

2. Supply package

The WAC 12 UK package contains the following
- One WAC 12
-  One WLC 12 UK language kit complete with:
      -  Installation instructions.

3. Mounting instructions

The WAC 12 is designed for mounting in dry indoor rooms. 
To ensure good acoustics, note the following points.
- Mount 2 to 2.5 m above floor level.
- Maintain adequate distance from noise sources (ven ti la tion 
   openings, fans etc.).
- Direct towards the centre of the space to be monitored.
- Do not mount on vibrating surfaces.
- The maximum length of the audio connection between the    
WAC 12 and central control unit is 200 m.

3.1 Opening the housing (Fig.1)

1 - Using screwdriver 

Q

, press locking tab to release.

2 - Lift off cover 

W

.

s

Installation Instructions

WAC 12

WLC 12 UK

20 800 042.0-010

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