PEB1757E
TETHYS™ 2 STS-192/STM-64, 16 STS-48/STM-16, MUX/DEMUX
MARCH 2008
REV. 1.0.2
GENERAL DESCRIPTION
Tethys™ PEB1757E is optimized for SONET/SDH
applications as a full-duplex two STS-192/STM64 or
sixteen STS-48/STM-16 or a mix of sixteen STS-12/
STM-4 and STS-3/STM-1 MUX/DEMUX channel
device with full framer functionality including pointer
processing, and overhead termination; ideal for
aggregation, ADM and DWDM applications. In the
demultiplex ingress direction, Tethys™ PEB1757E
accepts either two STS-192/STM-64 or 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™
PEB1757E 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™ PEB1757E supports
TOH and POH overhead transparency.
In the multiplex direction, Tethys™ PEB1757E
accepts sixteen STS-48/STM-16 signals in serial 2.5
Gbit/s format. Tethys™ PEB1757E further provides
corresponding functionality in the DEMUX direction.
APPLICATIONS
•
ADM
•
Metro Aggregation
•
Digital Cross Connects
•
Repeaters
•
DWDM Equipment
•
Test Equipment
FEATURES
•
Provides 2 SFI4.1 interfaces for STS-192/STM-64 links
•
Provides serial STS-48/STM-16, STS-12/STM-4 or STS-
3/STM-1 links
•
Provides line timing of all line and system side interfaces
•
Processes SONET/SDH flexible concatenation streams
of STS-2c, 3c, 4c, … to 192c
•
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
•
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 system side output links to external
cross-connects
•
For diagnostic purposes, Tethys provides PRBS
generator/checker and loop backs
•
Provides B1, B2, H1 and H2 bit error generation for both
receive and transmit direction diagnostics
•
Provides 1 second performance monitors
•
0.13 micron process, 1.2 V core, 3.3 V I/O
•
Motorola 32-bit synchronous microprocessor interface 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
•
Differential CML 2.5 Gbit/s I/O interface to optics
•
Differential CML 2.5 Gbit/s I/O interface to system/
backplane
SPECIFICATIONS
•
OIF TFI-5
STANDARDS
•
ANSI T1.105-2000-193R2 (DRAFT)
•
ANSI T1.105.05-1994
•
T1X1.3/93-005RI -1993 - preliminary
•
GR-253-CORE Sept. 2000
•
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
ORDERING INFORMATION
P
ART
N
UMBER
PEB1757E
P
ACKAGE
1397 CBGA
O
PERATING
T
EMPERATURE
R
ANGE
-40°C to +85°C
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
•
(510) 668-7000
•
FAX (510) 668-7017
•
www.exar.com
EXAR [ EXAR CORPORATION ]
