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GPS-MXS

Product catalog summary

Overview
GPS-MXS is a multi-output signal generator designed for time and frequency synchronization. Unlike traditional devices that rely solely on GPS, GPS-MXS can utilize alternative sources to ensure continuous operation, mitigating risks associated with GPS dependency. It supports four different input sources, including high-precision clocks like Cesium, Rubidium, or MASER.

Features
The device includes a high-stability OCXO with an aging rate of ±1*10^-10/day, a 12-channel GPS receiver, and a new generation DPLL for fast locking. It supports multiple reference inputs such as GPS, E1/T1, 1PPS, IRIG Time Code, and PTP/IEEE1588v2. It also features an Ethernet interface for NTP or PTP synchronization and dual power supply options (AC or DC).

Technical Specifications
Frequency Reference: Outputs a 10 MHz sine wave with spectral purity of -70 dBc for harmonics and -75 dBc for non-harmonics. It has a phase noise of -125 dBc at 1kHz and provides four independent outputs at 13 dBm each.
Time Reference: Outputs a 1 PPS signal with a 100µs duty cycle and rising edge, with four independent outputs at TTL 5 Vpp.
GPS Section: Features a 12-channel L1 receiver with <50 ns PPS precision and a capture time of <4 minutes.
External Section: Supports standard frequencies from 1 MHz to 10 MHz and a standard period of 1 PPS.
E1 Section: Utilizes E1 256S multiframe CRC-4 signals with 75 Ω impedance.
PTP Section: Supports IEEE 1588-2008 protocol with hardware timestamping and precision of <1 µs.
NTP Section: Uses NTP Version 4 protocol with software timestamping and precision of <10 ms.

Supply and Signaling
The device operates on a network supply of 95 Vac – 240 Vac and a battery supply of 20 Vdc - 50 Vdc. It includes RS-232 and Ethernet interfaces for signaling.

Physical Characteristics
The GPS-MXS is compact, with a width of 1U/19'' and a depth of 300 mm, weighing 1.5 kg.

Catalog excerpts

Digital Instruments GPS-MXS Multireference Time-Frequency

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Digital Instruments GPS-MXS Multireference Time-Frequency 1 Overview GPS-MXS is a Time and Frequency multi-output signal generator (PPS, 10 MHz). It differs from other apparatus for signal synchronization because all the previous devices have been regulated exclusively by GPS. Currently the GPS is surely the best support tool to control signals, ensuring known reliability. Downside is that it's totally under control of the US Department of Defense, and as such, presents technical and geopolitical risks. GPS-MXS is innovative, because allows the possibility of using alternative sources, so as...

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Digital Instruments GPS-MXS Multireference Time-Frequency 2 Features · Internal high stability OCXO aging rate of ± 1*10 -10 /day, · 12 channels GPS receiver with automatic tracking and timing error management system, · New generation DPLL fast lock, · Multi reference inputs: GPS, E1 (G.703/9) or T1, 1PPS, IRIG Time Code, PTP/IEEE1588v2, · 1x Ethernet interface for NTP or PTP synchronization, · 2x PSU (AC or DC), · Size: 1U/19' – depth 300 mm (connector excluded), · Weight: 1.5 Kg, · Certification CE.

Open the catalog to page 3

Digital Instruments GPS-MXS Multireference Time-Frequency 3 Tech. Spec. Frequency reference Signal: 10 MHz sine wave. Spectral purity: -70 dBc at full output power. (harmonics), -75 dBc at full output power (non-harmonics). Phase noise: -125 dBc at 1kHz. Output: 4 independents. Output level: 13 dBm each output. Output impedance: 50 Ω. Output connectors: BNC. Stability: 1e-12 daily average OCXO locked at GPS in SA. OCXO Standard: 1e-10 daily average OCXO in free run, OCXO SC: 2e-11 daily average OCXO on free run. Time reference Signal: 1 PPS, 100µs Duty, Rising Edge. Output: N° 4 independents....

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Digital Instruments GPS-MXS Multireference Time-Frequency 4 Tech. Spec. E1 section Standard signal: E1 256S multiframe CRC-4 (16 frame per multiframe) Input impedance: 75 Ω. Output impedance: 75 Ω. Connectors: BNC PTP section Protocol: IEEE 1588-2008 (PTPv2) - PTPv1 optional Role: Grandmaster clock source (GPS) or Slave Timestamping: Hardware Precision: < 1 us NTP section Protocol:NTP Version 4 Role: Grandmaster clock source (GPS) Timestamping: Software Precision: < 10 ms Stratus: 1 Supply Network: 95 Vac – 240 Vac, Plug IEC320 integrated, filter EMI/RFI. Battery: 20 Vdc - 50 Vdc filter EMI/RFI...

Open the catalog to page 5