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DESCRIPTION

The Line Card Interface Controller, STLC5460, is a monolithic switching device for the path control of up to 128 channels of 16, 32, 64 kbps bandwidth. Two consecutive 64 kbps channels may also be handled as a quasi single 128 kbps channel. For these channels, the LCIC performs non-blocking space time switching between two serial interfaces: the system interface (or PCM interface) and the general component interface (GCI).

■ BOARD CONTROLLER FOR UP TO 16 ISDN LINES OR 16 VOICE SUBSCRIBERS.

■ TWO SERIAL INTERFACES :

-PCM Four bidirectional multiplexes

-GCI One (or two) at 2 Mb/s.

■ NON BLOCKING SWITCH FOR 128 CHANNELS (16, 32 OR 64 KB/S BANDWIDTH).

■ N CONSECUTIVE 64 kb/s CHANNELS FROM AN INPUT MULTIPLEX CAN BE SWITCHED AS A SINGLE N X 64 kbit/s CHANNEL TO AN OUTPUT MULTIPLEX AT 2048 kb/s.

■ TIME SLOT ASSIGNMENT FREELY PROGRAMMABLE FOR EVERY CONNECTED SUBSCRIBER.

■ PROGRAMMABLE PCM DATA RATES UP TO 8192 kb/s.CONSTANT DATA RATE AT 2 Mb/s ON GCI SIDE.

■ PCM interface :

- Simple and double clock frequency selectable;.

- Programmable clock shift

- Tristate mode control signals for external drivers.

■ GCI interface :

- Six bits or four bits Command/indicate channel selectable for analog or digital equipment

- Command/IndicateMonitor channels validated or not

■ Microprocessor access to two selected bidirectional channels of GCI and/or PCM.

■ Multicontrollers for layer 1 functions :

- C/I protocol controller for up to 16 C/I channels

- Monitor protocol controller for up to 16 Monitor channels.

■ Standard microprocessor interface with multiplexed address/data bus or separate address data buses.

■ PLCC44 pins PACKAGE