RS-485 to RS-485 Data Bus Converter Module MSM2927-06-x

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					                                                         RS-485 to RS-485 Data Bus Converter Module

                                                                                                               MSM2927-06-x



Product Description

      The MSM2927-06-x provides the necessary medium to
convert AI’s CMS proprietary RS-485 serial communications to a
RS-485 serial communication format and vice versa to control
Airshow’s domestic satellite TV system. It is specifically designed
to meet the special requirements of aircraft use.
      The “-x” suffix denotes the type of connector utilized;
“-1” = Positronic and “-2” = D-Subminiature.

Features

   The following list provides an overview of features for the
MSM2927-06-x:

q    Active device that requires power, ground, and data bus

q
     connections.
     Specially designed to meet aircraft standards

Application Notes

1.   The MSM2927-06-x allows AI’s control equipment (touch             Technical Specifications
     screens, audio/video controllers, source equipment) that are
     attached to AI’s proprietary RS-485 serial data bus to control      Electrical          Power               850 mA at +28 VDC
     Airshow’s SATV via the dedicated RS-485 data bus.                   Mechanical      Dimensions              3.10" x 5.11" x 1.05"
                                                                                          (l x w x h)        7.87cm x 12.98cm x 2.67cm
Installation Guidelines                                                                     Weight                 3.25 lb / 1.47 kg

1.   Mounting screws are required to secure the unit. Refer to
     outline drawing for mounting hole diameters and
     configurations.
2.   All power and ground wires shall be 22 AWG, MINIMUM.
     Power ground wires shall be grounded within twelve inches of            Drawings                          Description
     the unit.       All wires shall be in accordance with                 522285 Rev IR1               MSM2927-0x-x Outline Drawing
     MIL-W-22759 or equivalent. Twisted shielded cable shall be
     in accordance with MIL-DTL-27500 or equivalent. Protect
     power wires with circuit breakers or fuses located close to the
     electrical power source bus.
3.   The MSM2927-06-x is designed to interface with other AI
     equipment via AI’s proprietary RS-485 serial data bus. This                      Document # 530374 – Revision History
     data bus allows multiple units to be connected                        Level        Date                Description
     simultaneously.                                                        IR         5/2000              Initial Release
4.   AI’s proprietary RS-485 serial data bus shall be implemented
     using a twisted shielded pair cable in accordance with
     MIL-DTL-27500 or equivalent.          The wire size for the
     conductors in this cable shall be 22 AWG, MINIMUM. The
     shield shall be connected wherever a shield pin is provided.
                                                                                            PROPRIETARY NOTICE
     Shield terminations shall be made as close to the connector
                                                                            Despite any copyright notice, this data and information
     pin as possible. AI’s proprietary RS-485 serial data bus
                                                                       disclosed herein contains confidential, proprietary designs owned
     specification is available upon request.
                                                                       by Audio International, Incorporated. Neither this data nor the data
5.   Two (2) connectors are available on the unit. P1 provides
                                                                       contained herein shall be reproduced, used, or disclosed to
     SATV RS-485 communications and P2 provides CMS
                                                                       anyone without the written authorization of Audio International Inc.
     RS-485 communications.




Audio International, Inc. • 7300 Industry Drive, North Little Rock, AR 72117 • Phone 501-955-2929 / Fax 501-955-2988 / www.audiointl.com