U.S. ROBOTICS, INC.
AUTO LINK 1200
Card Type | Modem (asynchronous) |
Chip Set | U.S. Robotics |
Maximum Data Rate | 1200bps |
Data Bus | External |
Data Modulation Protocol | Bell 212A |
V2254
CONNECTIONS | ||||||
Function | Label | Function | Label | |||
Line out | CN1 | Analog loopback switch | SW1 | |||
Line in | CN2 | Originate mode switch | SW2 | |||
RS-232/422 | CN3 | Power switch | SW3 | |||
DC power | CN4 |
USER CONFIGURABLE SETTINGS | ||
Setting | Label | Position |
Auto answer disabled | SW4/A | Off |
Auto answer enabled | SW4/A | On |
Local echo disabled | SW4/B | Off |
Local echo enabled | SW4/B | On |
Equalize for dial-up phone lines | SW4/C | Off |
Equalize for dedicated phone lines | SW4/C | On |
DTR normal | SW4/D | Off |
DTR forced high | SW4/D | On |
RS232C | ||||
Setting | SW5/A | SW5/B | SW5/C | SW5/D |
Pin 2 receive/Pin 3 send | On | On | Off | Off |
Pin 2 send/Pin 3 receive | Off | Off | On | On |
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
OH | Red | On | Modem is off-hook |
OH | Red | Off | Modem is on-hook |
CD | Red | On | Carrier signal detected |
CD | Red | Off | Carrier signal not detected |
ON | Red | On | Power is on |
ON | Red | Off | Power is off |
AL | Red | On | Modem is in analog loopback test mode |
AL | Red | Off | Modem is not in analog loopback test mode |
TR | Red | On | DTR signal is high |
TR | Red | Off | DTR signal is low |
SD | Red | On | Modem is transmitting data |
SD | Red | Off | Modem is not transmitting data |
RD | Red | On | Modem is receiving data |
RD | Red | Off | Modem is not receiving data |
AN | Red | On | Auto-answer enabled |
AN | Red | Off | Auto-answer disabled |
RI | Red | On | Modem is receiving ring signal |
RI | Red | Off | Modem is not receiving ring signal |
MISCELLANEOUS TECHNICAL NOTES |
Note: Diagram not available. |