Our enhanced Oscilloquartz grandmaster clock technology empowers electricity providers to evolve their infrastructure into smart grids based on PTP power profiles, while at the same time supporting all legacy timing signals. The upgraded technology also removes the risk of relying purely on GNSS-based time sources through continuous monitoring, jamming and spoofing detection and AI-assisted analytics.

1. Synchronizing power networks
May 2020
Oscilloquartz solution overview

2. © 2020 ADVA. All rights reserved.22
Steadily increasing timing
requirements
Outages of synchronization
networks can have
catastrophic impact
Currently applied sync
solutions do not meet
actual demand
Power utilities urgently need to improve their synchronization architecture
Distributed control requires tight synchronization

3. © 2020 ADVA. All rights reserved.33
Synchronization accuracy requirements
Bulk metering
Customer premises metering
SCADA: supervisory control and data acquisition
Frequency measurement
Event recorder
Fault localization
Synchrophasor: voltage/current with accurate phase
1s
1ms
1µs
IRIG
NTP
PTP

4. © 2020 ADVA. All rights reserved.44
GNSS outages need to be mitigated with
network-based synchronization delivery
IEEE 1588 is necessary for IEC 61850 substation
automation and IEEE C37.118 synchrophasor
As synchronization is mission-critical, real-time
information about sync quality is vital
Going from 1ms to 1µs time accuracy requires
NTP to be replaced by PTP
Challenges
Increasing accuracy GNSS vulnerability
Lack of visibility Standardization

5. © 2020 ADVA. All rights reserved.55
IRIG and PPS provide time
information
GNSS as highly accurate local
time reference
Network Time Protocol (NTP)
provides msec precision to
appliances
GNSS time reference
Current solutions cannot meet accuracy or availability requirements
Substation synchronization – today
Migration to
Ethernet
Protection
relay
RTU/
SCADA
IEDEvent
recorder
HMI
Substation
switch
IRIG-B,
PPS
NTP
server
GNSS
clock
NTP

6. © 2020 ADVA. All rights reserved.66
Precision time protocol for
sub-µs timing accuracy
Converging PTP, NTP and
IRIG-B into single solution
Mitigating GNSS outages
with network-based backup
for highest availability
Assuring business continuity
by monitoring sync quality
Highest accuracy and best availability with satellite and network-based timing
Substation synchronization – tomorrow
Protection
relay
RTU/
SCADA
IEDEvent
recorder
HMI
Substation
switch
IRIG-B,
PPS
PTP grandmaster
PTP,
NTP
ePRTCWAN

7. © 2020 ADVA. All rights reserved.77
OSA 5420 – the “Swiss Army Knife“ of synchronization
PTP
GM/BC type D / slave
NTP
server
SSU
Multiple I/F
fan-out
Sync probe
G.8265.1 IRIG-B, PPSG.8275.2 G.8275.1
2G/3G/
4G/5G
FDD BS
DOCSIS 3.1 5G-NR/LTE
TDD/LTE-A BS
NTP61850-9-3/
C37.238
Smart grid
PTP power
profiles
Verticals

8. © 2020 ADVA. All rights reserved.88
• Supported on OSA 542X
• Up to 2x line cards with OSA 5420
• 10x IRIG outputs (AM and DCLS)
• Optional patch panel
1x IRIG-B input
1x optical IRIG output
1x RS-422 output
1x alarm / pulses
relay NC/NO
10x IRIG outputs
IRIG optical outputs
(820nm ST
connectors)
IRIG AM/DCLS
outputs
BNC connectors
IRIG optical input
(820nm ST connectors)
to IRIG DCLS output
converter
IRIG DCLS out
outputs
5V/10V
BNC
connectors
Power LED
Selection
optical/electrical
IRIG line card

9. © 2020 ADVA. All rights reserved.99
OSA 5401 as power profile grandmaster
• Ultra-compact, low power PTP grandmaster – world’s smallest power profile grandmaster
• Supports PTP and NTP
• Telecom to power profile conversion
GNSS
IEEE 1588
aware switch
featuring PTP TC
Protection
relay
PMU
Alarm
annunciator
Substation
gateway
QOS
meter
61850 LAN
 PTP
IEEE C37.118
 NTP
OSA 5401
grandmaster

10. © 2020 ADVA. All rights reserved.1010
OSA 5405 as power profile grandmaster
• Low-profile, low-power PTP grandmaster
• Supports PTP and NTP, telecom to power profile conversion
• Local PoE and fiber into the building
GNSS
IEEE 1588
aware switch
featuring PTP TCProtection
relay
PMU
Alarm
annunciator
Substation
gateway
QOS
meter
61850 LAN
 PTP IEEE
C37.118
 NTP
OSA 5405 GM featuring
integrated GNSS antenna
Fiber
(Ethernet,
PTP)

11. © 2020 ADVA. All rights reserved.1111
Solution portfolio
Various opportunities to enhance accuracy of time distribution
OSA 5401 SyncPlugTM:
SFP-based cell site PTP
grandmaster
OSA 5405 SyncReachTM: cell
site grandmaster with
integrated dual-GNSS
receiver
OSA 5420/30: edge/core
grandmaster featuring
1/10GbE interfaces
OSA 3230B: atomic cesium
clock for highest precision
and longest holdover
ePRTC solution
Ensemble Sync
Director

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Today’s power utility timing is not
accurate and resilient enough
Augmenting NTP with PTP improves
accuracy
Backing up satellite-based with network-
based sync delivers higher availability
Oscilloquartz offers an end-to-end
solution including sophisticated
assurance and management tools
When timing gets tough, OSA solutions keep going
Summary

13. Thank you
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