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TA16S2FAA Datasheet

  • TA16S2FAA

  • TA16-Type 2.5 Gbits/s Transponder with 16-Channel 155 Mbits/...

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Data Sheet
March 2001
TA16-Type 2.5 Gbits/s Transponder with
16-Channel 155 Mbits/s Multiplexer/Demultiplexer
Applications
s
Telecommunications:
鈥?Inter- and intraoffice SONET/SDH
鈥?Subscriber loop
鈥?Metropolitan area networks
High-speed data communications
s
Description
The TA16 transponder performs the parallel-to-serial-
to-optical transport and optical transport-to-serial-to-
parallel function of the SONET/SDH protocol. The
TA16 transmitter performs the bit serialization and
optical transmission of SONET/SDH OC-48/STM-16
data that has been formatted into standard SONET/
SDH compliant, 16-bit parallel format. The TA16
receiver performs the optical-to-electrical conversion
function and is then able to detect frame and byte
boundaries and demultiplex the serial data into 16-bit
parallel OC-48/STM-16 format.
Note:
The TA16 transponder does not perform byte-
level multiplexing or interleaving.
Figure 1 shows a simplified block diagram of the
TA16-type transponder. This device is a bidirectional
module designed to provide a SONET or SDH com-
pliant electro-optical interface between the SONET/
SDH photonic physical layer and the electrical sec-
tion layer. The module contains a 2.5 Gbits/s optical
transmitter and a 2.5 Gbits/s optical receiver in the
same physical package along with the electronics
necessary to multiplex and demultiplex sixteen
155 Mbits/s electrical channels. Clock synthesis and
clock recovery circuits are also included within the
module.
In the transmit direction, the transponder module
multiplexes sixteen 155 Mbits/s LVPECL electrical
data signals into an optical signal at 2488.32 Mbits/s
for launching into optical fiber. An internal 2.488 GHz
reference oscillator is phase-locked to an external
155 MHz data timing reference.
The TA16-Type transponders integrate up to 15 discrete ICs
and optical components, including a 2.5 Gbits/s optical trans-
mitter and receiver pair, all in a single, compact package.
Features
s
2.5 Gbits/s optical transmitter and receiver with
16-channel 155 Mbits/s multiplexer/demultiplexer
Available with 1.31 碌m Fabry-Perot laser transmit-
ter and PIN receiver for intraoffice applications,
and 1.31 碌m or 1.55 碌m DFB laser transmitters
and PIN or APD receiver for short-haul to long-haul
applications
Pigtailed low-profile package
Differential LVPECL data interface
Operating case temperature range: 0 擄C to 65 擄C
Automatic transmitter optical power control
Laser bias monitor output
Optical transmitter disable input
SONET frame-detect enable
Loss of signal, loss of sync, loss of framing alarms
Diagnostic loopback capability
Line loopback operation
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