3COM CORPORATION
COURIER V.32BIS WITH ASL
Modem Type |
Data (synchronous/asynchronous) |
Maximum Data Rate |
14.4Kbps |
Data Bus |
External |
Data Modulation Protocol |
Bell 103A/212A ITU-T V.22, V.22bis, V.23, V.32, V.32bis |
Error Correction/Compression |
MNP5, V.42, V.42bis |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Line out |
CN1 |
DC power |
CN4 |
Line in |
CN2 |
Volume |
R1 |
RS-232/422 |
CN3 |
Power switch |
SW2 |
MI/MIC POLARITY | ||
Setting |
J6 |
J8 |
» Normal |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Reversed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
TX/RX PIN ASSIGNMENT | |
Setting |
SW3 |
» Off |
Normal operation |
On |
reverse TX/RX pin assignments |
DTR SIGNAL | |
Setting |
SW1/1 |
» On |
DTR forced high |
Off |
DTR normal |
RESULT CODES | |
Setting |
SW1/2 |
» Off |
Verbose result codes enabled |
On |
Numeric result codes enabled |
RESULT CODES DISPLAY | |
Setting |
SW1/3 |
» On |
Display enabled |
Off |
Display disabled |
ECHO COMMANDS DISPLAY | |
Setting |
SW1/4 |
» Off |
Local echo enabled |
On |
Local echo disabled |
AUTO ANSWER | |
Setting |
SW1/5 |
» On |
Modem does not answer on first ring |
Off |
Modem answers on first ring |
CARRIER DETECT | |
Setting |
SW1/6 |
» Off |
CD normal |
On |
CD forced high |
RESULT CODES DISPLAY | |
Setting |
SW1/7 |
» Off |
Display result codes in originate and answer modes |
On |
display result codes in Answer mode |
AT COMMAND SET | |
Setting |
SW1/8 |
» On |
AT command set enabled |
Off |
AT command set disabled |
ESCAPE CODE | |
Setting |
SW1/9 |
» Off |
Disconnect, go to command mode and display NO CARRIER when escape character is received |
On |
Go to command mode and display OK result code when escape character is received |
USER PROFILE | |
Setting |
SW1/10 |
» Off |
Use stored profile |
On |
Use factory default |
VOICE/DATA | |
Setting |
SW4 |
Note: for switch functions see table for register S32. |
DIAGNOSTIC LED(S) | |||
LED |
Color |
Status |
Condition |
HS |
Red |
On |
Modem is operating at 4800bps or faster |
HS |
Red |
Off |
Modem is operating at slower than 4800bps |
AA |
Red |
On |
Auto-answer enabled |
AA |
Red |
Off |
Auto-answer disabled |
CD |
Red |
On |
Carrier signal detected |
CD |
Red |
Off |
Carrier signal not detected |
OH |
Red |
On |
Modem is off-hook |
OH |
Red |
Off |
Modem is on-hook |
RX |
Red |
Blinking |
Modem is receiving data |
RX |
Red |
Off |
Modem is not receiving data |
TX |
Red |
Blinking |
Modem is transmitting data |
TX |
Red |
Off |
Modem is not transmitting data |
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 |
MR |
Red |
Blinking |
Retraining/test mode |
RS |
Red |
On |
RTS signal is high |
RS |
Red |
Off |
RTS signal is low |
CS |
Red |
On |
CTS signal is high |
CS |
Red |
Off |
CTS signal is low |
EC |
Red |
On |
Error control enabled |
EC |
Red |
Off |
Error control disabled |
EC |
Red |
Blinking |
Modem is retransmitting data |
SYN |
Red |
On |
Synchronous mode |
SYN |
Red |
Off |
Asynchronous mode |
Proprietary AT Command Set
See document V1264 for a full command summary.