The Microchip/Microsemi/Symmetricom 87-8028-2 is a 12-channel GPS C/A receiver module integrating a Furuno GPS engine for precision timing and positioning. Delivering timing accuracy better than 30 nanoseconds RMS to UTC and frequency stability exceeding 1×10⁻¹², this receiver provides reliable synchronization for applications demanding sub-microsecond timing performance. The module incorporates TRAIM functionality, dual-redundancy configuration capability, and configurable oscillator options ranging from TCVCXO through high-stability Rubidium standards. It supplies 12 volts to the GPS antenna and outputs 1PPS at selectable rates, IRIG A/B time code, and 1/5/10 MHz frequency references with low-noise 10 MHz variants available.
Technical Specifications
• Receiver Architecture: 12-channel GPS C/A receiver with Furuno module
• Timing Accuracy: Better than 30 nanoseconds RMS to UTC
• Frequency Accuracy: Better than 1×10⁻¹²
• Time-to-RAIM (TRAIM): Equipped for enhanced reliability assessment
• Antenna Power: 12 volts DC
• Reference Inputs: GPS, Time Code, and 1PPS primary and secondary inputs
• Oscillator Options: TCVCXO, OCXO, High Stability OCXO, Rubidium, High Stability Rubidium
– Key Features
• Dual-redundant GPS receiver configuration in single chassis for improved availability
• 1PPS output with selectable pulse rates
• Time Code I/O supporting IRIG A, B, IEEE 1344, and NASA36 formats (AM and DCLS)
• Frequency outputs: 1, 5, and 10 MHz/MPPS with low-noise 10 MHz options
• Open Collector Alarm output
• 10/100 Base-T Ethernet interface with HTTP, Telnet, SNMP (enterprise MIB), FTP, and optional NTP/SNTP
• RS232/422 serial command interface
– Compatibility & Integration
• Designed for Symmetricom XLi and XL-GPS modular systems
• Plug-and-play architecture with automatic configuration recognition
• Compatible with 2U chassis accommodating ten option modules
• Remote firmware administration and software updates
• Field-upgradable oscillator modules
