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Microsound MF 400 Instruction Manual

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Microsound Systems
MF 400
Apartment Intercom System
Instruction Manual

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Summary of Contents for Microsound MF 400

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

  • Page 2: Table Of Contents

    Technical Information ..........................6 5.1. Cable requirements ..........................6 5.2. Door Station.............................6 5.3. Handset ............................6 First Line Service.............................7 6.1. Test Voltages ...........................7 6.2. Operation ............................7 6.3. Fault Conditions ..........................7 6.4. MF 400 RECOMMENDED SERVICE KIT ...................9 Wiring..............................9 Guarantee..............................9 17 July 2000 mf400man.doc...

  • Page 3: General Description

    General Description 1.1. Features One or more door stations. 899 handsets. 4 common wires through out. Private conversation. Only called stations can open the door. Two handsets on one number. Extension bell. Door access code. Access code can be changed and is non - volatile. Door station has four programmable zones for more reliability and easy fault finding on large systems.

  • Page 4: Handset Connections

    Power from power supply. (Minimum voltage at handsets). 2. Gnd Ground from power supply. 3. Rx Receive from door station. 4. Tx Transmit from door station Microsound handset (RJ 11 Socket) 1. +15vdc Power from power supply. (Red) 2. Gnd Ground from power supply. (Black) 3.

  • Page 5: Power Supply Connections

    Door strike contact (Light green) Door strike contact (Brown) Busy Busy to other door stations (White) 3.3. Power Supply Connections +15vdc Connect to door stations and handsets Connect to door stations and handsets Earth Mains Neutral Mains (220vac) Live Mains (220vac) Programming 4.1.

  • Page 6: Audio Level Adjustments

    Step 4. The first number to the forth zone will then be displayed. (Default = 252). Enter the new number for zone four ending with enter “*”. If you want the third zone to end with number 150 enter 151 for the beginning of zone four. Step 5.

  • Page 7: Operation

    Green Yellow Idle Dialling 0-12 Handset up No dialling Speech Door release Reset 6.2. Operation TX line 1. Dials the required handset. 2. Detects when the door release button is being pressed. RX line 1. Detects when the handset is lifted or replaced. 2.
  • Page 8 • Check ULN2803. 8. All out door cable must be screened and earthed. mf400man.doc...

  • Page 9: Mf 400 Recommended Service Kit

    6.4. MF 400 RECOMMENDED SERVICE KIT UM-3750 - Handset decoder P8751 - CPU VN10KN - Tx driver Keypad - Door station Zener - Lightning protection zener diodes Wiring 220VAC MF400 MF400PSU +15vdc MF400HS MF400HS MF400HS MF400HS Basic layout (one door station)

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