The XRT91L30IQ-F is a highly integrated Line Interface Unit (LIU) designed for T1/E1 applications, manufactured by Exar Corporation. This single-chip solution is engineered to provide a complete physical layer interface between network equipment and the transmission line. It supports both T1 and E1 standards, making it a versatile choice for global telecommunications applications.

Applications

• Channel banks
• Digital cross-connects (DCS)
• PBX systems
• Wireless base stations
• Voice over IP (VoIP) gateways
• Routers and switches

Features

• Integrated T1/E1 Line Interface Unit (LIU)
• Supports both T1 (1.544 Mbps) and E1 (2.048 Mbps) standards
• Integrated pulse shaping
• Clock recovery and generation
• Jitter attenuation
• Automatic line build-out (ALBO)
• Loopback testing capabilities
• Comprehensive alarm and status monitoring

Benefits

• Reduced component count and board space
• Lower system cost
• Improved system reliability
• Simplified design and manufacturing
• Enhanced performance with jitter attenuation and clock recovery
• Automatic line build-out for various cable lengths
• Comprehensive diagnostic capabilities for easy troubleshooting

The XRT91L30IQ-F incorporates advanced clock recovery and jitter attenuation circuitry, ensuring high-quality data transmission even in noisy environments. The Automatic Line Build-Out (ALBO) feature automatically compensates for signal loss in different cable lengths, optimizing signal integrity. The device supports various loopback modes for diagnostic purposes, enabling efficient fault isolation. It is typically packaged in a small form factor, making it suitable for space-constrained applications. The XRT91L30IQ-F also includes comprehensive alarm and status monitoring functions, allowing for real-time performance monitoring and proactive maintenance. Its compliance with industry-standard T1/E1 specifications ensures seamless interoperability with existing network infrastructure. Furthermore, the device's low power consumption contributes to energy-efficient system designs.