Our new synchronization solutions featuring Satellite Time and Location (STL) technology address the growing vulnerabilities of GPS and other GNSS systems to jamming and spoofing attacks. Our compact PTP grandmaster clock and streamlined STL/GNSS receiver, the OSA 5405-S , serves industries from 5G to defense. And our M.2 form factor OSA 5400 STL module brings the benefits of an STL/GNSS receiver to third-party switches and servers.

1. Addressing GPS
vulnerabilities with Satellite
Time and Location technology
Introducing the OSA 5405-S and STL module powered by Satelles
October 2023

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Satelles leverages Iridium’s satellite infrastructure

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GNSS offers services at no cost, but is it really free?
• GNSS synchronization is the most accurate method for
meeting 5G timing requirements
• However, it works poorly or not at all in:
• Urban canyons due to limited sky view
• High multipath environments (signal shredding)
• Indoors environment due to excessive attenuation
• It is susceptible to spoofing and jamming, potentially
compromising its security
• These disadvantages are due to the slow movement of
GNSS satellites, their reliance on older technology with
limited security and their very high altitude, which
weakens signal strength when it reaches the ground
The problems with GPS/GNSS technology
GPS
STL
NOTE: Image depicts indoor reception of STL compared to GPS.
Orbital altitudes not to scale.

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5G indoor STL timing solution
“Antenna-less” (no rooftop antenna needed)

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Satelles’ STL: a LEO PNT alternative to GPS/GNSS
STL LEO PNT
Key features
• STL means “Satellite Time and Location” signals from Iridium’s LEO PNT constellation
• STL is offered “as-a-service” by Satelles and its STL technology is integrated into Adtran OSA products
• STL is transmitted from Iridium’s 66 LEO PNT sats at an altitude of 485m vs. 12,500m with GPS/GNSS
• STL are transmitted on L-band, penetrating buildings, unlike K-band signals used by other mega LEO PNT sats
• STL services are available globally and are not dependent in GNSS
• Stratum 0 signal for Stratum 1 clock, meets ITU-G.8272 PRTC-A
• Timing stability compared to GPS per NIST study, traceable to UTC (NIST/USNO)
Key benefits
• STL LEO PNT is a resilient alternative backup source to GPS/GNSS
• STL signals are 1,000 times stronger than GPS/GNSS
• STL signals are encrypted for high security
• STL signals can penetrate buildings for indoor applications
• “Antenna-less” solution (no rooftop antenna needed)

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• Precise timing leveraging Satelles technology
• Ease of integration with smallest footprint and M.2 form factor
• Short time to market for STL integration
• M.2 form factor for open compute servers, white box switches
and industrial devices
• Ultra-compact, only 40mm x 22mm
• Satellite Time and Location (STL) receiver, Satelles LEO-based
• Can be used for indoor and outdoor use cases
The easiest and fastest way for ODMs to harness LEO-based timing
Ultra-compact STL receiver for original design manufacturers (ODM)
OSA 5400 STL module – product overview
OSA 5400
STL module
Product description
Key benefits
STL

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Unique PTP grandmaster with STL receiver
Best fit for small form factor needs; 4”(W) x 0.87”(H) x 3.95”(D)
Member of 54xx family with all Syncjack functions
Low profile , low power substation PTP GM with multiple IRIG
interfaces
Support PTP, NTP and Telecom to Power profile conversion
Local PoE + Copper and Fiber PTP interface
Small footprint unit with external GNSS and STL antenna
Satellite Time and Location (STL) receiver, Satelles LEO
based
Rack mount, DIN rail and wall mount install options
Enabling precise synchronization based on both GNSS and STL
Indoor power substation PTP grandmaster
OSA 5405-S – Product overview
Product description
Key benefits
OSA 5405-S
STL

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• PTP network interface
• 100/1000BASE-TX/PoE
• SFP 1000BASE-X
• GNSS/STL antenna or GNSS antenna
• USB-C:
• CLI interface
• CH1/CH2:
• SMA-F IRIG-B DCLS/AM 5V output
• Input/output: PPS/2M/10M
• Serial RS422 over RJ-45
• PPS + ToD NMEA or IRIG-B
• STL-only antenna
• 12VDC input
• GNSS/STL receiver
• PRTC-A +/-100ns accuracy
• Spoofing and jamming detection
• GPS, GLONASS, BEIDOU, GALILEO, SBAS
• PTP
• Grandmaster, boundary, slave clock
• Power, Telecom, enterprise, broadcast, AVB/TSN,
IEEE1588 default profiles
• Up to 64 unicast slaves
• Synchronous Ethernet (SyncE)
• Syncjack monitoring and assurance
• NTP server
• Stratum 1
• < 500,000 TPS
Feature set Interface
Features overview

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STL installation example
Urban high-rise buildings
STL LEO receiver used to
synchronize two Nokia 5G micro
BTS RANs on 40th floor of office
building
Data centers
STL receiver used to
synchronize
data center servers
Hospital installations
STL receiver used to
synchronize Ericsson 5G
micro BTS RANs in hospital
data center

10. Thank you
oscilloquartz.com