Our FSP 150-XJ128 offers businesses a straightforward route to 25Gbit/s connectivity services. Specifically designed to enable enterprise networks to expand in an easy and cost-effective way, the unique solution addresses soaring data demand without using complex modulation techniques or requiring a costly footprint increase. It simply slots into existing network infrastructure and delivers 2.5x the bandwidth at a lower cost per bit.

1. Introducing the industry’s first commercial 25Gbit/s
Carrier Ethernet demarcation device
August 2021
Meet the FSP 150-XJ128

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2
Need for 25G speed
• 25Gbit/s provides cost advantages, leveraging high-volume
SFP technology without the need for QSFP
• Some applications cannot move to 100Gbit/s
• Long fiber links with poor mode dispersion require
sophisticated and expensive modulation at 100Gbit/s
Why not just move to 100G?
• Keep space and power consumption at 1/10Gbit/s levels
• Finer bandwidth granularity to better match revenue with
cost
• Optimized for robust Ethernet connectivity and stringent
timing delivery
25G – a perfect fit

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3
Market for 25G
• 40Gbit/s as 4x 10Gbit/s is
becoming less attractive
• 25Gbit/s with SFP28 is gaining
momentum in data centers
• Key applications in mobile, cable
networks and PON require
25Gbit/s
• Option for cost-effective service
growth from 1Gbit/s to 10Gbit/s
What is driving
growth?
Source: FS community blog, March 2020 at fs.com
25G/40G/50G/100G/200G/400G
optical transceiver market forecast

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Applications demand 25Gbit/s
• Radio base stations or
• DOCSIS 4.0 RPHY devices need 25Gbit/s
Fast bandwidth growth of 1Gbit/s services
• Immediately step from 1Gbit/s to 25Gbit/s
• Longer lifetime of demarcation device, better TCO
Moderate bandwidth growth of 10Gbit/s services
• Moving to 25Gbit/s instead of 100Gbit/s
• Lower cost, better margins
Applications and use cases of 25G services
FSP 150-XJ128

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FSP 150-XJ128 (SH) interfaces
Redundant pluggable PSUs
(same as XG108)
Management
USB
RS232 console
1000Base-T LAN
Timing
BITS
TOD/PPS
2 x access
Combo
RJ45 10/100/1000Base-T
SFP 1G
1 x access
SFP28 10G/25G
1 x access/network
SFP28 10G/25G
1 x network
SFP28 10G/25G
1 x access
SFP+ 1G/10G

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Summary
• Applications demand 25Gbit/s interfaces
• 100Gbit/s is overkill for many use cases
• Intermediate step saves cost, power and
space
• ADVA’s FSP 150-XJ128 is first 25Gbit/s
purpose-built Carrier Ethernet demarcation
device
25G is gaining momentum

7. Thank you
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