Commodore - 8010
The Commodore 8010 is a acoustic telephone modem. The modem can make a connection or receive a connection. The modem has a Full Duplex or a Half Duplex mode, and the transfer rate is 300 baud.
The following indication LEDs are available:
TST - Self-test
CRX - Carrier detect
RCV - Data receiving
XMT - Modem in stand-by