This document discusses power utility challenges in migrating from legacy telecommunications networks to next-generation packet networks. It outlines the need to replace obsolete equipment while maintaining interoperability with existing infrastructure. It also addresses challenges around terminating analog/leased line services and introducing new packet-based services. RAD solutions are presented as addressing these challenges through hybrid TDM/packet networks, carrier-grade Ethernet, and evolutionary migration paths to facilitate a smooth transition while ensuring network reliability, security and future scalability.

1. Power Utilities Migration
Solutions
Replacing End-of-Life
PDH/SDH/SONET Multiplexers in
Critical Infrastructure
Communications
October 2015

2. Power Utilities Migration Solutions 2
Outline
• Power Utilities Migration Challenges
• Obsolete Equipment Replacement – Interoperability
with Legacy Equipment
• From Legacy TDM to Next-Generation
Packet Networks
• Takeaways

3. Power Utilities Migration
Challenges

4. Power Utilities Migration Solutions 4
Power Utilities Migration Challenges
• Legacy Equipment Obsolescence
– Support and spare parts for legacy installed base become a challenge
• Sycamore, Coastcom, Carrier Access, Nortel, Alcatel’s Mainstreet, Tellabs,
Nokia, JungleMux, Adtran and etc.
– Need to use the existing legacy backbone (SONET/SDH/PDH/sub-E1/T1…)
– New equipment should fully interop with existing devices, support
ongoing services
• Analog or TDM Leased Line Service Termination by Telcos
– SDH/SONET equipment and legacy services are being phased out

5. Power Utilities Migration Solutions 5
New Challenges
• Smart Applications and New Packet Services
– New digital control devices/IEDs, Syncrophasors, IoT (Internet of Things)
– Bandwidth growth, migration to IEC 61850
– UTelco services
• Security! Security! Security!
– US NERC CIP regulations
– Critical infrastructure
protection market –
$63.7B (2013) - $105.9B (2018)
MarketsandMarkets 9/2013

6. Power Utilities Migration Solutions 6
 Full interop with existing equipment
 Hybrid design for adding new packet services
 Up to 100Gbps all packet with OTN/DWDM,
robust performance
 New Carrier Ethernet 2.0, any voice, video, data
 Secure-by-design: MACsec, IPSec, 802.1x
authentication, distributed SCADA firewall …
Addressing Migration Challenges –
RAD’s Service Assured Networking (SAN) Solutions
Challenges
 Legacy equipment becomes obsolete
 Legacy leased line service termination
 Future ready equipment for packet
 Non-disruptive new service additions
 NERC-CIP compliance
SAN Capabilities

7. Replacing Obsolete
Equipment
Interoperability with Legacy
Multiservice Platforms

8. Power Utilities Migration Solutions 8
Transmission Substation Multiservice
Operational Network – Gradual Migration
Substation “A”
Teleprotection
RTU
Voice
Legacy MSP
IED
IED
ADM
Connection
on Demand
FO
Core
Network
TDM
Substation “B”
Teleprotection
RTU
Voice
IED
IED
Access
network
TDM
Access
network
TDM
Substation “C”
Teleprotection
RTU
Voice
IED
IED
FO
Substation “D”
Teleprotection
RTU
IED
ETXMP
Control Room
(DMS)
Legacy MSP
Legacy MSP
Legacy MSP
ADM
ADMADM
Legacy MSP
Megaplex
Megaplex
SCADA Center
RADview

9. Power Utilities Migration Solutions 9
Interoperability Challenges Addressed
• N x 64 kbps path protection
• Rate adaptation for sub-64k services
• Differential protection control signaling using legacy interfaces (X.21, V.35, etc.)
• Clock distribution within network
• SCADA servers redundancy mechanism
• Variety of PHY
>> RAD’s SAN solutions address all these challenges…

10. Analog/Leased Line
Service Termination

11. Power Utilities Migration Solutions 11
Challenges to Utilities
• Service providers attempt to reduce OpEx by terminating legacy
services and leased lines, issue “End of Service” notices
• Utilities are offered to migrate to new PSN services, or pay premium
for legacy lines
• Utilities should assure:
– Continued support for all existing services (serial/voice/data)
– Cyber security (PSN is opening the door to malware threats)
– Future-proof design (capacity and scalability)

12. Power Utilities Migration Solutions 12
Smooth Migration to PSN Services with
SAN Solutions
FXS/FXO E&M
Substation “B”
Substation “C”F.O
PSN
Leased-
Lines
IPmux-1E
E&M
E&M
Substation “D”
F.O
FXS/FXO E&M
Substation “A”
F.O
F.O
Unlicensed
MW
E&M
E&M
IPmux-1E
E&M
E&M
IPmux-1E
New Substation
Control Center
SCADA
Controller Megaplex-4
Megaplex-4 Megaplex-4

13. From Legacy TDM
to Next-Generation
Packet Networks

14. Power Utilities Migration Solutions 14
Optimized Packet Technology –
Carrier Ethernet
• Carrier Ethernet is the packet equivalent to SONET/SDH because:
– It utilizes EVCs, which are similar to VTs and VCs
– It uses OAM for seamless troubleshooting, similar to SONET/SDH OAM
• Best security compared to PSN alternatives:
– Resistant to signaling attacks
– Built-in source authentication
– Integrated security

15. Power Utilities Migration Solutions 15
RAD’s 3-Tier ESP Protection:
Boost Your NERC-CIP Compliance Level*
* North American utilities

16. Power Utilities Migration Solutions 16
RAD’s Evolutionary Path
Addressing Utility Communications Challenges
• Continued support for TDM
• Future ready, hybrid TDM and Ethernet design
• Ethernet over SONET/SDH and pseudowire for a smooth migration – Cross
Generation implementation
• Traffic Duplication for improved latency and increased resiliency
• Carrier-grade Ethernet for performance assurance of the operational network,
with better security, and timing distribution
Flexibility in choosing the migration path:
Co-existence of networks Phased migration
SDH
SONET
PSN
SDH
SONET
PSN

17. Power Utilities Migration Solutions 17
Takeaways
• Complete Service Assured Networking solutions
– Replacing any legacy equipment with full service continuity
– Any application, new and old
– Addressing pain-points: reliability, migration, security
• Profound understanding of customer needs
– Over 30 years of ongoing teamwork
with customers and partners
– Global presence and local support
• Fine-tuned to be Your Network’s Edge
Learn more about RAD’s migration solutions for
power utilities here.

18. www.rad.com