TI Silent 700's: Update

On Mon, Sep 02, 2002 at 01:38:02PM -0500, Doc Shipley wrote: I've only got classiccmp going back to ~2000 but google saved me: (courtesy of Neil Preston, usenet) Pin 9 - protective ground - terminal chassis pin 1 - Signal ground Printer - keyboard interface pins 11-15 Pin 14 - CR busy; from terminal; lpTTL high-true when printhead is lifted (for test only) Pin 15 - DTR from terminal; EIA level held ON when terminal is on line Pin 13 - XMTD from terminal; EIA level held to MARK state when no data is being transmitted Pin 12 - RCVD from external; Receive data; EIA level held to MARK state by external device when no data is to be printed. Pin 11 - CDET from external; CArrier detect; EIA level held ON by external device when data is to be received on pin 12. EIA communications interface Pins 2,3 8 Pin 2 - CARDET from terminal; Carrier detect; EIA level held ON by terminal when carrier is detected. Pin 8 - RCVDATA from terminal; Receive data; EIA level held to MARK state by terminal when no data is being received. Pin 3 - XMIT DATA from external device; Transmit data; EIA level held to MARK state by external device when no data is to be transmitted. Current loop interface pin 6 - RL1 Input side of receive data current loop when current loop option is installed; otherwise, 3.3K ohms to +5v Pin 7 - RL2; Return side of receive data current loop. as above Pin 5 - X1; Input side of transmit data current loop when option installed. Pin 4 - X2; Return side of transmit data current loop. Pin 10 - P12V - spare EIA level held ON when power is on (3.3K ohms to +12v My 700 has a loopback connector for the 15-pin interface, which is needed when using the acoustic modem: 2->11 3->13 8->12 -- jht