Excalibur Systems X2AA1-2 1553 Cable

The Excalibur Systems X2AA1-2 is a shielded twinax cable engineered for MIL-STD-1553 data bus systems. This two-conductor twisted-pair design delivers reliable signal transmission in aerospace, military, and industrial applications where signal integrity and electromagnetic shielding are critical. Each cable terminates in PL75-29BR connectors, and custom lengths are available to specification.

## Technical Specifications

• **Cable Type:** Two-conductor, twisted, shielded, jacketed twinax
• **Connectors:** PL75-29BR on each end (equivalent types accepted)
• **Characteristic Impedance:** 70 to 85 Ohms at 1 MHz (nominal 78 Ohms)
• **Wire-to-Wire Distributed Capacitance:** Maximum 30.0 picofarads per foot
• **Attenuation:** Not to exceed 1.5 dB per 100 feet at 1 MHz
• **Twist Rate:** Minimum four twists per foot
• **Shield Coverage:** Minimum 90% per MIL-STD-1553B Notice 2
• **Cable Length:** Variable in meters; tolerances range from ±1 cm (0–30 cm) to ±20 cm (over 1001 cm)

## Key Features

• Dual-labeled connectors for field identification
• High shield coverage meets updated MIL-STD-1553B requirements
• Controlled impedance and low capacitance for clean data transmission
• Configurable lengths to match system architecture

## Typical Applications

• MIL-STD-1553 data bus networks in military aircraft and helicopters
• Aerospace vehicle avionics and control systems
• Industrial environments requiring MIL-spec signal integrity

## Compatibility & Integration

This cable is designed for direct integration into MIL-STD-1553 data bus systems. Standard connector types (MIL-DTL-5015 and MIL-DTL-38999 circular connectors) are compatible with the PL75-29BR terminations.