U.S. ROBOTICS, INC.
SPORTSTER 2400
Modem Type | Data (synchronous/asynchronous) |
Maximum Data Rate | 2400bps |
Data Bus | External |
Fax Class | Class I & II |
Data Modulation Protocol | Bell 103A/212A ITU-T V.22bis |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Line out | CN1 | Power in | CN4 |
Line in | CN2 | Volume | R1 |
RS-232/422 | CN3 | Power switch | SW2 |
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
LED1 | Red | On | Analog loopback self test mode |
LED1 | Green | On | Data mode |
LED2 | Red | Blinking | Modem is transmitting/receiving data |
LED2 | Green | On | Carrier signal detected |
DTR SIGNAL | |
Setting | SW1/1 |
» On | DTR forced high |
Off | DTR normal |
RESULT CODES | |
Setting | SW1/2 |
» Off | Extended result codes enabled |
On | Extended result codes disabled |
RESULT CODES DISPLAY | |
Setting | SW1/3 |
» On | Display disabled |
Off | Display enabled |
ECHO DISPLAY | |
Setting | SW1/4 |
» Off | Local echo enabled |
On | Local echo disabled |
AUTO ANSWER | |
Setting | SW1/5 |
» On | Modem doe not answer on first ring |
Off | Modem answers on first ring |
CARRIER DETECT | |
Setting | SW1/6 |
» Off | CD normal |
On | CD forced high |
MULTIPLE PHONE INSTALLATION | |
Setting | SW1/7 |
» Off | Single phone connected |
On | Multiple phones connected |
AT COMMAND SET | |
Setting | SW1/8 |
» On | AT command set recognized |
Off | AT command set disabled |
Proprietary AT Command Set
TIME DISPLAY | |
Type: | Immediate |
Format: | AT [cmds] Kn [cmds] |
Example: | AT K1 *L2 #E1<CR> |
Description: | Displays the current call time or clock time. |
Command | Function |
K0 | Display length of last call. |
K1 | Display actual time. |
HELP SCREENS | |
Type: | Immediate |
Format: | AT <prefix>$ |
Example: | AT &$ <CR> |
Description: | Shows command help screens for all commands beginning with the given prefix, or no prefix if none is given. |
Command | Function |
$ | Shows ATx help screen. |
D$ | Shows ATDx help screen. |
S$ | Shows S-register help screen. |
REPEAT COMMAND STRING | |
Type: | Configuration |
Format: | AT [cmds] > |
Example: | AT DT1(303) 443-3388 > <CR> |
Description: | Causes modem to repeat command string until a keyboard key is pressed. |
ANALOG LOOPBACK SELF TEST | |
Type: | Register |
Format: | AT [cmds] S16=n [cmds] |
Example: | ATS16=139 <CR> |
Description: | Selects the tone dialing test. |
Command | Function |
0 | Data mode. |
1 | Analog loopback. |
2 | Dial testing. |
4 | Test pattern. |
5 | Analog loopback and test pattern. |