PEB1756E
PEB1756E TETHYS™ 4192 DUAL STS-192/STM-64 MUX/DEMUX
FEB 2009
REV. 1.0.2
GENERAL DESCRIPTION
Tethys™ 4192 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 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 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
corresponding functionality in the DEMUX direction.
APPLICATIONS
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ADM
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Metro Aggregation
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Digital Cross Connects
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Repeaters
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DWDM Equipment
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Test Equipment
FEATURES
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Complies with OIF specifications SFI-4.1
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Differential CML 2.5 G I/O interface to system/backplane
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TFI-5 Support
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Processes SONET/SDH dual STS-192/STM-64 on the
line side interface
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Provides interfaces for dropping alarm and status
information, and for forcing alarm conditions
•
Supports system-side input deskew of up to ± 250 ns
within a group of 4 x 2.5G GBps for each of two STS-192/
STM-64
•
Power dissipation of 15 W, depending on mode of
operation
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Terminates and generates SONET section, line, and path
layers
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Provides TOH and POH transparency
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Provides monitoring of POH bytes B3 and N1/Z5
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Provides B2 SF/SD capability for Poisson and bursty
error distribution
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Provides full TOH/POH add/drop
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Provides STS-1 level POH add/drop
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Supports more than ± 746 UI programmable output skew
on STS-192/STM-64 or STS-48/STM-16 out-put links to
external cross-connects
•
For diagnostic purposes, Tethys provides PRBS
generator/checker and loop backs
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Provides B1, B2, H1 and H2 bit error generation for both
receive and transmit direction diagnostics
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Provides 1 second performance monitors
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Provides B1, B2, H1 and H2 bit error generation for both
receive and transmit direction diagnostics
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Provides 1 second performance monitors
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0.13 micron process, 1.2 V core, 3.3 V I/O
•
Motorola 32-bit synchronous microprocessor inter-face
for configuration, control, and status monitoring
•
Complies with GR-253, GR-1377, ITU-T G.707, and
ANSI T1.105
•
Provides a standard 5-signal IEEE 1149.1 JTAG test port
for boundary scan board test purposes
•
Processes SONET/SDH dual STS-192/STM-64 or eight
STS-48/STM-16 on the system/client side serial 2.5 Gbit/
s interface
SPECIFICATIONS
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OIF SFI-4.1
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OIF TFI-5
STANDARDS
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ANSI T1.105-2000-193R2 (DRAFT)
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ANSI T1.105.05-1994
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T1X1.3/93-005RI -1993 - preliminary
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GR-253-CORE Sept. 2000
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ITU-T G.707 10/2000
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Provides line timing of all line and system side interfaces
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Processes SONET/SDH flexible concatenation streams
of STS-2c, 3c, 4c, … to 192c
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Supports auto-detection of concatenation streams STS-
3c/STM-1, STS-12c/STM-4, STS-48c/STM-16 and STS-
192c/STM-64
•
Supports STS-1 level pointer processing of STS-192/
STM-64 or STS-48/STM-16 streams
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
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(510) 668-7000
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FAX (510) 668-7017
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www.exar.com
EXAR [ EXAR CORPORATION ]
