U.S. ROBOTICS, INC.
PASSWORD 300 MODEM
| 
 Modem Type  | 
 Data (synchronous/asynchronous)  | 
| 
 Maximum Data Rate  | 
 300bps  | 
| 
 Data Bus  | 
 External  | 
| 
 Data Modulation Protocol  | 
 Bell 103A/212A  | 

| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Line in  | 
 CN1  | 
 RS-232/422  | 
 CN3  | 
| 
 DC power  | 
 CN2  | 
 Power switch  | 
 SW2  | 
| 
 CHARACTER LENGTH  | |
| Setting | 
 J2  | 
| » 10-bit | 
 Off  | 
| 11-bit | 
 On  | 
| 
 TRANSMIT AND RECEIVE SIGNAL  | ||
| Setting | 
 J3  | 
 J4  | 
| » Normal pin assignment | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| Tx/Rx pins reversed | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 AUTO ANSWER  | |
| Setting | 
 SW1/1  | 
| » Modem answers on first ring | 
 Off  | 
| Modem does not answer on first ring | 
 On  | 
| 
 CARRIER DETECT  | |
| Setting | 
 SW1/2  | 
| » CD normal | 
 Off  | 
| CD forced high | 
 On  | 
| 
 DTR SIGNAL  | |
| Setting | 
 SW1/4  | 
| » DTR normal | 
 Off  | 
| DTR forced high | 
 On  | 
| 
 FACTORY CONFIGURED SETTINGS  | |
| 
 Jumper  | 
 Setting  | 
| 
 SW1/3  | 
 N/A  | 
| 
 J1  | 
 N/A  |