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mf400man.doc 

5

11.

 

Dsl 

 Door 

strike 

contact  (Light 

green) 

12.

 

Ds2 

 Door 

strike 

contact  (Brown) 

13.

 

Busy 

 

Busy to other door stations 

(White) 

3.3. Power 

Supply 

Connections 

1.

 

+15vdc      

Connect to door stations and handsets 

2.

 

Gnd 

   

Connect to door stations and handsets 

3.

 

Earth      

Mains 

4.

 

Neutral  

Mains (220vac) 

5.

 

Live        

Mains (220vac) 

4. Programming 

4.1. Handset 

Programming 

 
 
 
 
 
 
 
 
 
 
 
 

 

To program a number, remove the required pins on IC3. Pin 1 to Pin 10 and the common ground 
as shown below. 

  

 
IC 3 

Pin  

1    

=    

1 (decimal) 

Example

 

2    

=    

2. 

 

Handset number 50. 

3    

=    

4. 

 

Pin 

6  

=  

32 

4    

=    

8. 

 

 

5  

=  

16 

5    

=    

16 

 

 

2  

 2 

6    

=    

32 

 

 

 

 

----- 

7    

=    

64 

 

 

 

 

50 

8    

=    

128 

9    

=    

256 

10 

=    

512 

 

Two handsets can be programmed to work on the same number for one area. 

4.2.  Door station Programming 

 
Step 1.

   Press 1 and 4 and switch the power on . The “busy” led will flash and the door 

access code will be displayed.(Default = 9123). Enter the new door access code ending 
with enter “*”. Only three digits must be entered as the first digit will always be “9”. 

Step 2

. The first number of the second zone will then be displayed. (Default = 250). 

Enter the new number for zone two ending with enter “*”. If you want the first zone to 
end with number 50 enter 51 for the beginning of zone two. 

Step 3

. The first number to the third zone will then be displayed. (Default = 251). Enter 

the new number for zone three ending with enter “*”. If you want the second zone to end 
with number 150 enter 151 for the beginning of zone three. 

18  17  16  15  14  13  12  11  10  
 
 
 
1    2     3    4    5    6    7     8    9 

   1    2     4    8   16  32  64  128  256 

                                                 512 

PIN –  
Decimal 

Summary of Contents for MF 400

Page 1: ...Microsound Systems MF 400 Apartment Intercom System Instruction Manual...

Page 2: ...Power Supply Connections 5 4 Programming 5 4 1 Handset Programming 5 4 2 Door station Programming 5 4 3 Audio level adjustments 6 4 4 Defaults 6 5 Technical Information 6 5 1 Cable requirements 6 5 2...

Page 3: ...sy led will go off 7 At any time during the above operation the button can be pressed and the system will reset HI will appear on the display 8 If the called handset is not picked up and the call is n...

Page 4: ...r 9 There are four links A B C D on the door station s PCB If there is more than one door station the links on the subsequent door stations must be cut out Only one door station in a system must have...

Page 5: ...er for one area 4 2 Door station Programming Step 1 Press 1 and 4 and switch the power on The busy led will flash and the door access code will be displayed Default 9123 Enter the new door access code...

Page 6: ...factory defaults Switch the power off press 3 and 6 simultaneously and switch the power on The Busy led will flash a few times and then go off Release the buttons HI will be displayed and the system...

Page 7: ...lled but the door station does not stop dialling when the handset is lifted Check if the RX line is connected to the door station Check if the RX line is not shorted to any other lines or ground Check...

Page 8: ...mf400man doc 8 Check ULN2803 8 All out door cable must be screened and earthed...

Page 9: ...t one door station 8 Guarantee The MF400 is guaranteed by the manufacture for a period of six months from the date of delivery against faulty components and faulty workmanship ex factory Manufactured...

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