Ethernet over SONET/SDH (EoS) refers to a group of protocols that allows Ethernet frames to be carried over either SONET or SDH networks. Ethernet frames are typically encapsulated using GFP to create a synchronous stream of data which can then be mapped into the SONET/SDH streams using virtual concatenation technology (VCAT) with the reverse occurring at the other end of the link.

Arrive Technologies products offer powerful single chip solutions to Ethernet over SONET/SDH systems and can directly support 8 FE + 2 GE interfaces on chip or be expanded via the SPI3 interface. Fully integrated line side interfaces for up to 4 OC-12 or 4 OC-3, GFP encapsulation and VCAT processing capabilities make for an unbeatable, low power, single source solution for your EoS needs.

Device	AT4850	AT1250	AT1240
Description	OC48/12 (STM16/4) Mapper	OC-12/3 (STM4/1) Mapper	OC-12/3 (STM4/1) Mapper Lite
M13/E13	12	12	3
Network Fibers	2 OC48/12	None	None
Drop Fibers	None	2 OC-12/3	2 OC-12/3
GbE	2	2	1
SPI-3	128 Channels	128 Channels	128 Channels
10/100 Ethernet	8	8	8
TU3 XC	48X48	24X24	24X24
VT XC	2016X2016	1344X1344	1092X1092
SONET/SDH VCAT/LCAS	128 VCG	128 VCG	128 VCG
Data Encapsulation Support	ATM, GFP-T/F, PPP, HDLC, LAPS	ATM, GFP-T/F, PPP, HDLC, LAPS	ATM, GFP-T/F, PPP, HDLC, LAPS
Power	7 Watts	5 Watts	5 Watts
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