Audio international MSM2921-0x-x Installation Manual Download Page 1 | Manualshive

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7300 Industry Drive, North Little Rock, AR 72117

Phone: 501-955-2929 Fax: 501-955-2988

www.audiointl.com

Installation Manual

Model #: MSM2921-0x-x

Discrete to RS485 Converter Module

Document #540186

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Summary of Contents for MSM2921-0x-x

Page 1: ...7300 Industry Drive North Little Rock AR 72117 Phone 501 955 2929 Fax 501 955 2988 www audiointl com Installation Manual Model MSM2921 0x x Discrete to RS485 Converter Module Document 540186...

Page 2: ...letin Subject Manual Revision Revision Date Table of Illustrations Illustration Description Page 1 Typical Application 5 2 Reference Drawings 10 PROPRIETARY INFORMATION NOTICE Despite any other copyri...

Page 3: ...2 Block Diagram Typical Application 5 3 0 Installation 5 3 1 Prior to Installation 5 3 2 Unpacking and Inspection 6 3 3 Cautions Warnings 6 3 4 Wiring Requirements 7 3 5 Physical Characteristics 8 3...

Page 4: ...nication format and vice versa for means of providing an interface to AI s proprietary RS485 digital data bus Strapping pins are provided to enable the unit to address internal firmware that will allo...

Page 5: ...data bus The strapping options allow the unit to address internal firmware to allow the operator and or installation agency to use multiple MSM2921 0x x controlled units on the same AI proprietary RS...

Page 6: ...be filed with AI within 24 hours and a Return Request Authorization Number must be obtained from AI Refer to the front cover of this manual for address and telephone number of Audio International Rep...

Page 7: ...equivalent Twisted shielded cable shall be in accordance with MIL W 27500 or equivalent Protect power wires with circuit breakers or fuses located close to the electrical power source bus 3 4 3 AI s P...

Page 8: ...binary ID pins and will allow up to twelve 12 MSM2921 0x x modules to be installed on the aircraft s AI proprietary RS485 serial data bus If more than one unit is configured on the data bus connect th...

Page 9: ...tatus Ground Out 17 3 Switch Contact MOM GND IN 18 3 Status Ground Out 19 4 Switch Contact MOM GND IN 20 4 Status Ground Out 21 5 Switch Contact MOM GND IN 22 5 Status Ground Out 23 6 Switch Contact M...

Page 10: ...ing power from the unit for at least one minute and reapply power Verify the problem still exists Recheck all connections to the unit for security Check all harness runs for possible pinching Recheck...

Page 11: ...c MSM2921 0x x Installation Document 540186 Rev IR 2 2000 Page 11 of 11 6 0 Reference Drawings The following diagrams show the unit dimensions and connector locations for the MSM2921 0x x All dimensio...

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