MIL-STD-1553 Physical Layer for Time-Triggered Networks

Document Number: 2009-01-3147

Date Published: November 2009

Author(s):
Mike S. Glass - Data Device Corp.

Abstract:
Time-Triggered networking technologies such as TTP (Time-Triggered Protocol) are beginning to be used in critical aerospace applications such as flight controls. While TTP provides stringent specifications for determinism and fault tolerance, it does not define a physical layer. TTP's "de facto" physical layer, RS-485, includes shortcomings in a number of areas. These include a relatively low minimum transmitter voltage, low receiver threshold, along with a lack of specificity in a number of areas. The latter include bus signal levels, transmitter zero-crossing distortion and receiver zero-crossing tolerance, isolation method, terminal output noise, common mode and noise rejection, and input impedance. MIL-STD-1553, which has been deployed in flight and mission critical military applications for decades, defines a highly proven and robust physical layer. This paper presents MIL-STD-1553's physical layer as a candidate for use with TTP.

File Size: 274K
Product Status: In Stock

See other papers presented at SAE 2009 AeroTech Congress & Exhibition, November 2009, Seattle, WA, USA, Session: Avionics - Infrastructure Technologies - Network Technology (Part 1 of 3)

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