Motorola V3229 Operating Instructions - Page 86
Data Terminal, Ready, &D, Serial Port Ring, Indicator, Pin 22
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5 Asynchronous Operating Commands Test Commands, Cont. Data Terminal Ready &D In data mode DTR may be used for modem control. Table 9: Command Operation &D The modem ignores DTR.* &D1 The modem goes to command mode from data mode when DTR goes from on to off. &D2 Disconnects when DTR goes from on to off; disables autoanswer while DTR is off &D3 Disconnects, recalls command mode, and resets the modem to a stored configuration when DTR goes from on to off In dial line mode the modem disconnects; in leased line, the modem retrains. *default Note: If DTR controls dialer is selected, then selecting DTR active will cause an autodial after an off-toon transition of DTR. Serial Port Ring Indicator (Pin 22) \R \R determines how the ring indicate signal operates on pin 22 of the EIA-232 DTE connector. -22 V.3229 / V.3229L