Your question about Siemens S30810-Q2120-X LCS0

The LCS0 (Line Controller S₀) for Hicom 300/300E, provides 2 S₀ interfaces for connecting terminals. The S₀ interface is a 4-wire line (two wires in each direction) for transmitting data bits in AMI code. The transmission rate is 144 kbit/s, made up of 64 kbit/s for each of the two user data channels B1 and B2 plus 16 kbit/s on the signaling or D-channel.

Functional units:

• ISDN S₀ interface
• ISDN terminal adapter
• Microprocessor control
• Line bus interface
• V.24 monitor interface
• INT key Processor interrupt, soft block of board or S₀ line.
• LEDs One LED per B-channel; light up to indicate which B-channel is currently transmitting.
• V.24 interface for testing and monitoring purposes
• 7-segment display The seven segment display shows the status of the board during run-up and operation. The decimal point serves as a RUN LED. It indicates that the processor is functioning.