Sital’s Weapon Bus Series: 16PP194 and H009 Products

Sital Technology offers an extensive array of solutions for the 16PP194 and H009 protocols, which are critical predecessors to the MIL-STD-1553 standard. These multi-drop data buses are integral to weapon systems. This includes the “Small Diameter Bomb” (SDB) which requires robust support through IP cores, transceivers, and boards tailored for these protocols.

Key Offerings for 16PP194 and H009

• IP Core Support: Accompanied by VxWorks and Linux drivers, our IP core enhances system flexibility and performance.
• Transceivers and Boards: Available with Windows drivers. These components ensure seamless integration into various system architectures.
• Software Compatibility: Both hardware and software solutions are compatible with Sital’s MIL-STD-1553 API/library/driver and DDC’s 1553 components and AceXtreme API, facilitating easy adoption.

Integrated Solutions for 16PP194 and MIL-STD-1553

Many applications require the coexistence of 16PP194 and MIL-STD-1553 on the same physical data bus. Sital addresses this need by offering:

• IP, Component, or Board-Level Solutions: For smooth operation of 1553 and WMUX protocols within a single system.
• Efficient Controller Operation: Both the 1553 BC and WMUX CIU operate from the same node, simplifying system architecture and reducing hardware requirements.
• Unified Message Scheduling: Enables the control of both protocols through a single software API, making operations efficient and preventing message collisions.

Detailed Insights into Weapon Bus Protocols

Weapon Bus 16PP194

The 16PP194 standard, also known as Weapons Mux or WMUX, is a critical data bus protocol developed by General Dynamics in the mid-1970s for use in F-16 stores (weapons) buses, operating alongside the MIL-STD-1553 standard. This protocol is designed to meet the specific needs of military avionics with a focus on reliability, speed, and compatibility. 16PP194 features:

Technical Specifications of 16PP194

16PP194 shares several technical aspects with MIL-STD-1553 but also introduces unique features to cater to its specific applications:

• Terminal Coupling: Allows both direct and transformer-coupled terminals.
• Transmitter Specifications:

• • Voltage: 7.3 to 9.9 volts peak-to-peak across 15 loads.
  • Rise and Fall Times: Less than 150 ns.
  • Ringing and Overshoot: Less than 0.5 volts peak-to-peak.

• Receiver Requirements:

• • Must respond to 1.2 to 10.0-volts peak-to-peak signals.
  • Cannot respond to signals below 0.9 volts peak-to-peak.
  • Must operate with common mode voltages up to ±25 volts peak from 0 to 2 MHz without damage from common mode signals up to ±50 volts peak.
  • Input impedance must be ≥1300 ohms at 1 MHz when looking into the isolation transformer.

Data Bus Architecture of 16PP194

16PP194’s data bus system is designed to ensure efficient and secure communication:

• Terminals: Includes CIU (Control Interface Unit) and RIUs (Remote Interface Units) for versatile operation.
• Topology: Features two separate unidirectional (simplex) data buses; one for CIU to RIUs transmissions and another for RIUs to CIU communications.
• Redundancy: Implements a backup data bus for enhanced reliability.
• Data Rate and Encoding: Operates at 1 Mb/s with Manchester encoding, featuring a reversed encoding polarity from MIL-STD-1553.
• Word Format: Utilizes a 26-bit word format, incorporating data, status, and GO/NOGO words with 4 μS gaps between words. The format includes a sync bit, RIU address and subaddress fields, a 16-bit data field, and an odd parity bit.