TNETA1600

The TNETA1600 is a kind of synchronous optical network (SONET)/synchronous digital hierachy (SDH) asynchronous transport mode (ATM) line-interface receiver/transmitter which provides a versatile solution for transporting ATM cells over the SONET/SDH network at 155.52 Mbit/s or 622.08 Mbit/s. The device is characterized for operation over a temperature range of -40 to 85.

There are some features of TNETA1600 as follows: (1)termination/generation of 155.52 Mbit/s or 622.08 Mbit/s SONET/SDH frames carrying ATM cells including: frame scrambling/descrambling, pointer processing, ATM-cell delineation, ATM-cell extraction/insertion, ATM-cell payload scrambling/descrambling and cell-rate decoupling; (2)access to receive and transmit transport-overhead (TOH) and path-overhead (POH) bytes through the controller interface; (3)detects multiple-bit errors and corrects single-bit errors in the 5-byte ATM headers of incoming ATM cells; (4)seperate serial receive- and transmit-data communication ports allow access to data communications and orderwire-overhead bytes; (5)alarm generation/checking in accordance with bellcore, ANSI, and ITU-T specifications.

The following is about the absolute maximum ratings of TNETA1600 over operating free-air temperature range (unless otherwise noted): (1)supply voltage range, VCC1, TTL: -0.5 to 7 V; (2)supply voltage range, VCC2, PECL: -0.5 to 7 V; (3)input voltage range, VI, TTL: -1.2 to 7 V; (4)operating free-air temperature range, TA: -40 to 85; (5)storage temperature range, Tstg: -65 to 150. Then is about the recommended operating conditions: (1)VCC, supply voltage, TTL: 4.75 V min and 5.25 V max; (2)VIH, high level input voltage, TTL: 2 V min; (3)VIL, low level input voltage, TTL: 0.8 V max; (4)TA, operating free-air temperature: -40 to +85.