Advance Data Sheet
March 2001
CA16-Type 2.5 Gbits/s DWDM Transponder with
16-Channel 155 Mbits/s Multiplexer/Demultiplexer
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Multiple alarms:
— Loss of signal.
— Loss of reference clock.
— Loss of framing.
— Laser degrade alarm.
Applications
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Telecommunications:
— Inter- and intraoffice SONET/SDH
— Subscriber loop
— Metropolitan area networks
High-speed data communications
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The CA16-type transponders integrate up to 15 discrete
ICs and optical components, including a 2.5Gbits/s op-
tical transmitter and receiver pair, all in a single, com-
pact package.
Description
The CA16-type transponder performs the parallel-to-
serial-to-optical transport and optical transport-to-
serial-to-parallel function of the section and photonic
layers of the SONET/SDH protocol. The CA16 trans-
mitter section performs the bit serialization and opti-
cal transmission of SONET/SDH OC-48/STM-16
data that has been formatted into standard SONET/
SDH compliant 16-bit parallel format. The CA16
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.
The CA16 transponder does not perform byte-level
multiplexing or interleaving.
Features
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2.5 Gbits/s optical transmitter and receiver with
16-channel 155 Mbits/s multiplexer/demultiplexer.
Available with 1.55 µm cooled DFB laser transmit-
ter and an APD receiver for long-reach applica-
tions:
— Offers 45 standard ITU wavelengths with
100 GHz spacing.
— Each module is capable of two wavelengths
under user control.
Pigtailed, low-profile package.
Differential LVPECL data interface.
Operating case temperature range: 0 °C to 65 °C.
Automatic transmitter optical power control.
Laser bias monitor output.
Transmitter laser disable input.
Line loopback and diagnostic loopback capability.
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AGERE [ AGERE SYSTEMS ]
