MOTOROLA, INC. EC 212A/D Card Type Modem (asynchronous) Chip Set Unidentified Maximum Data Rate 1200bps Data Bus External Data Modulation Protocol Bell 212A Error Correction Unidentified [Image] CONNECTIONS Function Label Function Label Line out CN1 Unidentified R1 Line in CN2 Unidentified SW1 RS-232/422 CN3 USER CONFIGURABLE SETTINGS Setting Label Position Chassis ground connected to signal ground JP1 Pins 2 & 3 closed Chassis ground not connected to signal JP1 Pins 1 & 2 ground closed Transmit level set to -9 (permissive) JP2 Pins 2 & 3 closed Transmit level set to programmable JP2 Pins 1 & 2 closed Auto-dialer enabled S2/1 On Auto-dialer disabled S2/1 Off XXXT escape sequence enabled S2/2 On XXXT escape sequence disabled S2/2 Off Speed set to 1200bps when pin 23 of S2/3 On RS-232 port is high Pin 23 of RS-232 port ignored S2/3 Off Analog loopback test performed when pin S2/4 On 25 of RS-232 port is high Pin 25 of RS-232 port ignored S2/4 Off Disconnect modem on receipt of a long S3/3 On space Do not disconnect modem on receipt of a S3/3 Off long space Do not transmit long space on disconnect S3/4 Off Transmit long space on disconnect S3/4 On Line will not be set busy during test S3/5 Off modes Line will be set busy during test modes S3/5 On DTR normal S3/6 On DTR forced high S3/6 Off Disconnect after 150ms loss of carrier S3/7 On Disconnect after 10s loss of carrier S3/7 Off Auto-answer enabled S3/8 On Auto-answer disabled S3/8 Off DTR flow control from modem to DTE S4/1 Off XON/XOFF flow control from modem to DTE S4/1 On DTE to modem flow control disabled S4/2 Off DTE to modem flow control enabled S4/2 On HANDSET POLARITY Setting JP3 JP4 Normal Pins 2 & 3 closed Pins 2 & 3 closed Reversed Pins 1 & 2 closed Pins 1 & 2 closed ERROR CORRECTION MODE Setting S3/1 S3/2 Error correction disabled Off Off Error correction enabled On Off Auto-detect error Off On correction Auto-detect error On On correction FLOW CONTROL MODE - MODEM TO DTE Setting S4/3 S4/4 CTS flow control Off Off XON/XOFF flow control On Off Pin 11 of RS-232 port Off On Pin 11 of RS-232 port On On RCD OPERATION Setting S4/5 S4/6 RCD on Off Off RCD off On Off RCD follows data Off On RCD follows data On On DATA FORMAT Setting S4/7 S4/8 7 data bits, mark Off Off parity 7 data bits, even On Off parity 7 data bits, odd parity Off On 8 data bits, no parity On On DIAGNOSTIC LED(S) LED Color Status Condition EC Red On Error correction enabled EC Red Off Error correction disabled TR Red On DTR signal is high TR Red Off DTR signal is low MR Red On Power is on MR Red Off Power is off TD Red On Modem is transmitting data TD Red Off Modem is not transmitting data RD Red On Modem is receiving data RD Red Off Modem is not receiving data HS Red On Modem is operating at 1200bps HS Red Off Modem is operating at 300bps CD Red On Carrier signal detected CD Red Off Carrier signal not detected TM Red On Modem is in test mode TM Red Off Modem is not in test mode