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Atkinson Dynamics AD-28LD-MV Installation And Service Instructions Manual

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MODEL AD-28LD-MV
INSTALLATION AND SERVICE INSTRUCTIONS
2562445A
REV. A 1108
Printed in U.S.A.
UNIVERSITY PARK, IL USA
WARNING: DISCONNECT POWER BEFORE REMOVING COVER
CALL
LISTEN
TALK

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Summary of Contents for Atkinson Dynamics AD-28LD-MV

  • Page 1 MODEL AD-28LD-MV CALL LISTEN UNIVERSITY PARK, IL USA TALK WARNING: DISCONNECT POWER BEFORE REMOVING COVER INSTALLATION AND SERVICE INSTRUCTIONS 2562445A REV. A 1108 Printed in U.S.A.
  • Page 2 INSTALLATION AND SERVICE INSTRUCTIONS MODEL AD-28LD-MV SAFETY MESSAGE TO INSTALLERS, USERS AND MAINTENANCE PERSONNEL It is important to follow all instructions shipped with this prod- uct. This device is to be installed by a trained electrician who is thoroughly familiar with the National Electrical Code and will follow NEC Guidelines as well as local codes.

  • Page 3: General Features

    Master or Slave mode configurations. A call button with remote call dry contacts is also factory supplied in the unit. The AD-28LD-MV has a Type 1 en- closure and is a UL Listed signal appliance.

  • Page 4: Slave Mode

    CALL LISTEN UNIVERSITY PARK, IL USA TALK WARNING: DISCONNECT POWER BEFORE REMOVING COVER 290A3077B Figure 2. master mode. When the switch is released it will default back to the Listen or Speaker mode, allowing the user to receive any messages transmitted back to it.

  • Page 5: Remote Control

    This will subject the listener to very loud sound levels. 24 Vdc: The AD-28LD-MV is capable of sending DC power to another unit that is mounted in a remote location without local power. 24 Vdc is available from positions 6 and 7 of terminal block J7. It can be run along with the signal lines to an intercom in a remote location.
  • Page 6 24VDC IN/OUT GROUND REMOTE CONTROL REMOTE SPEAKER COMMON PHASE EXT CALL CONTACT GROUND CLASS I WIRING CLASS II WIRING 290A3078 Figure 3. ISOLATED BALANCED/UNBALANCED LINES: The audio signals are transmitted over a wire pair using balanced line technology. This means each wire carries a signal that is opposite in polarity of the other.
  • Page 7 MODEL AD-28LD-MV SPECIFICATIONS Operating Voltage 24 Vdc, 120Vac and 240 Vac 50/60 Hz Current Draw Voltage Operating Standby 24 Vdc 120 mA 60 mA 120 Vac 80 mA 60 mA 240Vac 40 mA 30 mA CAUTION: The 24Vdc input must be limited to 760 mA out if run from a supply.

  • Page 8: Electrical Connections

    B. UNPACKING. After unpacking the Model AD-28LD-MV, examine it for damage that may have occurred in transit. If the equipment has been dam- aged, do not attempt to install or operate it, file a claim immediately with the carrier stating the extent of the damage. Carefully check all envelopes, shipping labels and tags before removing or destroying them.

  • Page 9: Dry Contact

    three-position terminal block (J2) in the Class I wiring compartment. The signal lines, remote control lines, remote power, and call dry con- tacts are landed in a seven-position terminal block (J7) in the Class II wiring compartment. The two wiring sections are isolated by a fishpa- per barrier.
  • Page 10 At this time a brief explanation of the service requested or the nature of the malfunction, should be given. Address all communications and shipments to: Service Dept. Atkinson Dynamics Federal Signal Corp. 2645 Federal Signal Dr. University Park, IL 60466-3195 2.

  • Page 11: Wiring Diagrams

    G. WIRING DIAGRAMS. INTERCOM I MASTER/SLAVE INSTALLATION INTERCOM II AD-28LD-MV MASTER AD-28LD-MV SLAVE 24 VDC 24 VDC GROUND GROUND REMOTE REMOTE AUDIO + AUDIO + AUDIO AUDIO DRY CONTACT DRY CONTACT 1 WATT DRY CONTACT DRY CONTACT NEUTRAL NEUTRAL EARTH GND.

  • Page 12: Remote

    INTERCOM I USING CALL DRY INTERCOM II AD-28LD-MV MASTER CONTACTS WITH AC AD-28LD-MV SLAVE 24 VDC 24 VDC 1 WATT GROUND GROUND REMOTE REMOTE AUDIO + AUDIO + AUDIO AUDIO DRY CONTACT DRY CONTACT DRY CONTACT DRY CONTACT POWER POWER...

  • Page 13: Ground

    INTERCOM I BASIC BALANCED INTERCOM II AD-28LD-MV MASTER LINE SYSTEM AD-28LD-MV SLAVE 24 VDC 24 VDC GROUND GROUND REMOTE REMOTE AUDIO + AUDIO + AUDIO AUDIO DRY CONTACT DRY CONTACT 1 WATT DRY CONTACT DRY CONTACT NEUTRAL NEUTRAL EARTH GND.
  • Page 14 INTERCOM I BASIC UNBALANCED AD-28LD-MV MASTER LINE SYSTEM 24 VDC GROUND REMOTE 1 WATT CABLE AUDIO AUDIO + GROUND AUDIO DRY CONTACT DRY CONTACT NEUTRAL EARTH GND. 290A3086B Basic Unbalanced Line System This configuration is used when hooking to other products on the market.
  • Page 15 INTERCOM I MULTIPLE INTERCOMS INTERCOM 2 AD-28LD-MV MASTER AD-28LD-MV SLAVE 24 VDC 24 VDC GROUND GROUND REMOTE REMOTE 1 WATT AUDIO + AUDIO + AUDIO AUDIO DRY CONTACT DRY CONTACT DRY CONTACT DRY CONTACT NEUTRAL NEUTRAL EARTH GND. EARTH GND.

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