DATA SHEET
PMC-930829
ISSUE 5
PM5312 STTX
SONET/SDH TRANSPORT TERMINATING TRANSCEIVER
• Extracts the data communication channels (D1-D3, D4-D12) and serializes
them at 192 kbit/s (D1-D3) and 576 kbit/s (D4-D12). Optionally inserts the
data communication channels into the transmit stream.
• Extracts the section user channel (F1) and serializes it at 64 kbit/s. Optionally
inserts the section user channel into the transmit stream.
• Extracts the automatic protection switch (APS) channel (K1, K2) and
serializes it at 128 kbit/s. Detects loss of signal (LOS), out of frame (OOF),
loss of frame (LOF), far end receive failure (FERF), line alarm indication
signal (AIS), and protection switching byte failure alarms.
• Inserts FERF and AIS in the transmit stream.
• Provides loss of signal insertion, framing pattern error insertion, and coding
violation insertion (B1 and B2) for diagnostic purposes. Provides a transmit
and receive ring control port, allowing alarm and maintenance signal control
and status to be passed between mate STTXs for applications in ring-based
add drop multiplexers.
• Low power +5 Volt 0.8 micron CMOS with TTL/CMOS compatible inputs and
outputs.
• 208 pin copper slugged PQFP package.
PROPRIETARY AND CONFIDENTIALTO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 2