What does pin 22 in DB-25 indicate?(a) transmit data(b) receive data(c) ring indicator(d) signal groundI had been asked this question by my college professor while I was bunking the class.My query is from Asynchronous Flow Control in division Basic Peripherals of Embedded Systems

What does pin 22 in DB-25 indicate?(a) transmit data(b) receive data(c

1.	What does pin 22 in DB-25 indicate?(a) transmit data(b) receive data(c) ring indicator(d) signal groundI had been asked this question by my college professor while I was bunking the class.My query is from Asynchronous Flow Control in division Basic Peripherals of Embedded Systems
Answer» The correct answer is (C) ring indicator The explanation is: The 22ND pin in DB-25 and the 9th pin in the DB-9 INDICATES a ring indicator which is asserted when a connected modem has DETECTED an INCOMING call.

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What does pin 22 in DB-25 indicate?(a) transmit data(b) receive data(c) ring indicator(d) signal groundI had been asked this question by my college professor while I was bunking the class.My query is from Asynchronous Flow Control in division Basic Peripherals of Embedded Systems

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