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Atkinson Dynamics Intercom
Model AD-28X-MV
Installation and Service Instructions
2561925
REV. B1 1014
Printed in U.S.A.

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

  • Page 1 Atkinson Dynamics Intercom Model AD-28X-MV Installation and Service Instructions 2561925 REV. B1 1014 Printed in U.S.A.
  • Page 3: Master Mode

    INSTALLATION AND SERVICE INSTRUCTIONS FOR MODEL AD-28X-MV SAFETY MESSAGE TO INSTALLERS, USERS AND MAINTENANCE PERSONNEL It is important to follow all instructions shipped with this product. 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 4: Remote Control

    To configure an intercom in the Slave mode, perform the following steps: Disconnect power to the intercom before any installation, maintenance, or configuration changes are performed. 1. Move the J2 jumper on the P.C. board from the MAS to SLA position (see Figure 6). This can be done using long nose pliers, pulling the jumper off the “MAS”...
  • Page 5: Surge Protection

    Metal Oxide Varistor (MOV) devices are used to protect the audio lines and the remote control line. The intercom must have Earth Ground terminated to it to ensure surge protection. The output amplifier of the AD-28X-MV offers full short circuit protection and overheat protec‑ tion.
  • Page 6 Agency Listings AD‑28X‑MV UL (UJPX), (UJPX7), (UXPL, Marine) ‑ For indoor or outdoor use in Class I, Groups A, B, C and D, Division 2; Class II, Groups F and G, Division 2; Class III hazardous locations; Type 4X enclosure. T-Code at Maximum Ambient Temperature, °C Hazardous Location 40°...
  • Page 7 Atkinson Dynamics will service your equipment or provide technical assistance with any problems that cannot be handled locally. Any units returned to Atkinson Dynamics for service, inspection, or repair must be ac‑ companied by a Return Material Authorization. This R.M.A can be obtained only from the factory by calling (888) 751‑1500.
  • Page 8 2645 Federal Signal Drive University Park, IL 60484‑3167 2. Replacement Parts. Replace fuse with GMC‑1/2 only. DO NOT substitute. Description Part Number PC Board, AD-28X-MV K2001915-02 Kit, potentiometer with on/off switch K8590236 Kit, toggle switch K8590298 Kit, push button switch...
  • Page 9 ATKINSON DYNAMICS A FEDERAL SIGNAL COMPANY UNIVERSITY PARK, IL USA 290A4725-01 A. Push down to talk ATKINSON DYNAMICS A FEDERAL SIGNAL COMPANY UNIVERSITY PARK, IL USA 290A4725-02 A. Push up to listen...
  • Page 10: Back View

    (ORANGE) (GRAY) (YELLOW) (BLACK) (BLACK) (BLACK) (BROWN) BACK VIEW 290A4725-03 A. Dimple C. Volume control B. Listen/talk toggle switch D. Call push button 290A4725-04 A. Terminal block pinout G. Ground NOTE: Terminal Block accepts 10 ‑ 22 AWG wire. B. Dry contact H.
  • Page 11 3.88" 5.68" (9.9 cm) (14.6 cm) Δ (1 cm) WIDE 2 HOLES 9.88" (25.1 cm) ATKINSON DYNAMICS A FEDERAL SIGNAL COMPANY 4.84" UNIVERSITY PARK, IL USA (12.3 cm) 2.38" (6.1 cm) 5.0" 6.50" (16.5 cm) (12.7 cm) 290A4725-05 English A. 1/2‑14 pipe thread 2 places B.
  • Page 12 240VAC 120VAC 1/2A 250V 290A4725-06 English I. Neutral A. Terminal block pinout J. Hot B. Dry contact K. Earth ground C. For call L. 120/240VAC‑in D. Audio (‑) M. Master slave E. Audio (+) N. To control panel F. Remote control O.
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  • Page 16 MASTER SLAVE ATKINSON DYNAMICS ATKINSON DYNAMICS A FEDERAL SIGNAL COMPANY A FEDERAL SIGNAL COMPANY UNIVERSITY PARK, IL USA UNIVERSITY PARK, IL USA DRY CONTACT DRY CONTACT 1 WATT DRY CONTACT DRY CONTACT AUDIO (-) AUDIO (-) AUDIO (+) AUDIO (+)
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