U.S. ROBOTICS, INC.
MICRO LINK 300
Card Type | Modem (asynchronous) |
Chip Set | U.S. Robotics |
Maximum Data Rate | 300bps |
Data Bus | External |
Data Modulation Protocol | Bell 103/113 |
V2251
CONNECTIONS | ||||||
Function | Label | Function | Label | |||
Line out/in - unidentified | CN1 | DC power | CN4 | |||
Line in/out - unidentified | CN2 | Power switch | SW1 | |||
RS-232/422 | CN3 | Analog loopback switch | SW2 |
RS232C | ||||
Setting | SW3/A | SW3/B | SW3/C | SW3/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 |
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 |
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 |
MISCELLANEOUS TECHNICAL NOTES |
Note: Diagram not available. |