Features: · A single stage, non-blocking array of time switches for cross-connecting SONET virtual tributaries (VTs) or SDH tributary units (TUs).
· Provides non-blocking switching between two STS-3 (STM-1) byte serial input streams and two STS-3 (STM-1) byte serial output streams.
· Operates from a single 19.44 MHz clock.
· Provides parity checking on input data buses and parity generation on output data buses.
· Allows programmable idle code insertion on a per VT or per TU basis.
· Permits switching of any combination of SONET VT1.5, VT2, VT3, VT6, or STS-1 channels. Permits switching of any combination of SDH TU11, TU12, TU2, or TU3 channels.
· Operates in conjunction with the PM5361 TUDX SONET/SDH Tributary Unit Payload Processor which aligns SONET VTs or SDH TUs such that they can be switched by the TUDX.
· Cascadable in a systolic or bused manner to allow larger switching arrays to be implemented. Provides control outputs that are programmable on a per timeslot basis to facilitate construction of larger switching arrays.
· Provides programmable delay to match data skew in the systolic array application.
· Provides a generic 8-bit microprocessor bus interface for configuration, control, and status monitoring.
· Low power, +5 Volt, CMOS technology. Device has TTL compatible inputs and outputs.
· 160 pin metric quad flat pack (MQFP) package.
Application· SONET and SDH Wideband Cross-Connects
· SONET and SDH Add-Drop and Terminal MultiplexersPinout
Specifications
| Ambient Temperature under Bias |
-40°C to +85°C |
| Storage Temperature |
-40°C to +125°C |
| Supply Voltage |
-0.5V to +6.0V |
| Voltage on Any Pin |
-0.5V to VDD+0.5V |
| Static Discharge Voltage |
±500 V |
| Latch-Up Current |
±100 mA |
| DC Input Current |
±20 mA |
| Lead Temperature |
+230°C |
| Absolute Maximum Junction Temperature |
+150°C |
| Power Dissipation |
1.5 W |
DescriptionThe PM5371 TUDX SONET/SDH Tributary Unit Cross-Connect is a monolithic integrated circuit PM5371 that allows non-blocking switching of tributaries within two SONET STS-3 or SDH STM-1 streams. Any tributary entering on either stream of PM5371 can be connected to any same size tributary within either outgoing stream. The TUDX can be programmed to cross-connect a mix of SONET VT1.5, VT2, VT3, VT6, or STS-1 channels or SDH TU11, TU12, TU2, or TU3 channels.
Programmable idle code of PM5371 can also be inserted into any of these channels. The TUDX allows cross-connection of up to 168 VT1.5 or TU11 streams, up to 126 VT2 or TU12 streams, or up to 42 VT6 or TU2 streams or any legal mix as permitted by the SONET or SDH mappings.
The TUDX PM5371 operates in conjunction with the PM5361 TUPP SONET/SDH Tributary Unit Payload Processor which aligns SONET VTs or SDH TUs such that they can be switched by the TUDX. Larger switches can be constructed using arrays of TUDX devices. The TUDX is cascadable in a systolic or bused manner and provides programmable control outputs that are useful in constructing larger switching arrays.
No high speed clocks of PM5371 are required as the TUDX operates from a single 19.44 MHz clock. Parity checking is provided on input data buses and parity generation is provided on output data buses. The TUDX is configured, controlled and monitored via a generic 8-bit microprocessor bus interface.
The TUDX PM5371 is implemented in low power, +5 Volt, CMOS technology. It has TTL compatible inputs and outputs and is packaged in a 160 pin metric quad flat pack (MQFP) package.
PM5371 Data Sheet
