PEB1756E

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Features:

Provides serial STS-48/STM-16, STS-12/STM-4 or STS-3/STM-1 links
Differential CML 2.5 Gbit/s I/O interface to optics
Differential CML 2.5 Gbit/s I/O interface to system/backplane
TFI-5 Support
Processes SONET/SDH sixteen STS-48/STM-16 or a mix of sixteen STM-12/STM-4 and STS-3/STM-1 on the line side interface
Processes SONET/SDH sixteen STS-48/STM-16 on the system/client side serial 2.5 Gbit/s interface
Provides line timing of all line and system side interfaces
Processes SONET/SDH flexible concatenation streams of STS-2c, 3c, 4c, . to 48c
Supports auto-detection of concatenation streams STS-3c/STM-1, STS-12c/STM-4 and STS-48c/STM-16
Supports STS-1 level pointer processing of STS-48/STM-16 or STM-12/STM-4 or STS-3/STM-1 streams
Provides interfaces for dropping alarm and status information, and for forcing alarm conditions
Power dissipation of 15 W, depending on mode of operation
Terminates and generates SONET section, line, and path layers
Provides TOH and POH transparency
Provides monitoring of POH bytes B3 and N1/Z5
Provides B2 SF/SD capability for Poisson and bursty error distribution
Pro Provides full TOH/POH add/drop
Provides STS-1 level POH add/drop
Supports more than ± 746 UI programmable output skew on STS48/STM-16 output links to external cross-connects
For diagnostic purposes, Tethys provides PRBS generator/checker and loop backs

Application

ADM
Metro Aggregation
Digital Cross connects
Repeaters
DWDM Equipment
Test Equipment




Specifications

Specifications
DataRate(s)	2x10G
Protocols	SONET/SDH
Bus I/F	SFI-4.1
SystemBus I/F	2.5G TFI
Pwr Sup	3.3V/1.2V
Pkgs	CBGA-1397

Description

Tethys™ 448 PEB1756E is optimized for SONET/SDH applications as a full-duplex sixteen STS-48/STM-16 or a mix of sixteen STS-12/STM-4 and STS-3/STM-1 MUX/DEMUX with full framer functionality including pointer processing, and overhead termination; ideal for aggregation, ADM and DWDM PEB1756E applications. In the demultiplex ingress direction, Tethys™ 448 accepts either sixteen STS-48/ STM-16, or a mix of sixteen STS-12/STM-4 and STS-3/ STM-1 signals in serial 2.5 Gbit/s or serial 622 Mbit/s or serial 155 Mbit/s format. Tethys™ 448 locates the incoming SONET/SDH frame, optionally de scrambles the data, monitors the TOH and POH, and provides STS-1 level pointer processing. In addition, Tethys™ 448 supports TOH and POH overhead transparency. In the multiplex direction, Tethys™ 448 PEB1756E accepts sixteen STS-48/STM-16 signals

in serial 2.5 Gbit/s format. Tethys™ 448 PEB1756E further provides corresponding functionality in the DEMUX direction.

Tethys™ 419 PEB1756E2 is optimized for SONET/SDH applications as a full-duplex two STS-192/STM-64 MUX/DEMUX with full framer functionality including pointer processing, and overhead termination; ideal for aggregation, ADM and DWDM applications. In the demultiplex ingress direction, Tethys™ 4192 PEB1756E accepts two STS-192/STM-64 signals in SFI-4.1 format. Tethys locates the incoming SONET/SDH frame, optionally descrambles the data, monitors theTOH and POH, and provides STS-1 level pointer processing. In addition, Tethys supports TOH and POH overhead transparency.

In the multiplex direction, from the system interface, Tethys™ 4192 PEB1756E accepts two STS-192/STM-64 or eight STS-48/STM-16 signals in either dual 4 x 2.5 Gbit/s or 8 serial 2.5 Gbit/s format. Further Tethys provides