ELSA, INC.
MICROLINK 33.6TS
Card Type | Modem (asynchronous) | |
Chipset | Unidentified | |
I/O Options | Voice | |
Maximum Data Rate | 28.8Kbps | |
Maximum Fax Rate | 14.4Kbps | |
Data Modulation | Bell 103A, 212A ITU-T V.21, V.22bis, V.23, V.32, V.32bis, V.34 Rockwell V.FC | |
Fax Modulation | ITU-T V.17, V.27ter, V.29, V.33 | |
Error Correction/Compression | MNP5, V.42, V.42bis | |
Fax Class | Class I & II | |
Data Bus | Serial | |

CONNECTIONS | |||
Function | Label | Function | Label |
Telephone line in | CN1 | Serial port | CN5 |
Telephone line out | CN2 | DC power in | CN6 |
Microphone in | CN3 | Power switch | SW1 |
Speaker out | CN4 | ||
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
POWER | Red | On | Power is on |
POWER | Red | Off | Power is off |
TXD | Red | On | Modem is transmitting data |
TXD | Red | Off | Modem is not transmitting data |
RXD | Red | On | Modem is receiving data |
RXD | Red | Off | Modem is not receiving data |
DTR | Red | On | DTR signal is high |
DTR | Red | Off | DTR signal is low |
DSR | Red | On | DSR signal is high |
DSR | Red | Off | DSR signal is low |
RTS | Red | On | RTS signal is high |
RTS | Red | Off | RTS signal is low |
DIAGNOSTIC LED(S) (CON'T) | |||
LED | Color | Status | Condition |
CTS | Red | On | CTS signal is high |
CTS | Red | Off | CTS signal is low |
DCD | Red | On | Carrier signal detected |
DCD | Red | Off | Carrier signal not detected |
OH | Red | On | Modem is off-hook |
OH | Red | Off | Modem is on-hook |
SUPPORTED STANDARD COMMANDS |
Basic AT Commands |
+++, ‘comma’, A/ |
A, B, E, H, L, M, O, P, T, V, X, Z |
&D, &F, &S, &T, &V, &W, &Y, &Z |
Extended AT Commands |
\C, \J, \K, \N, \Q, \T, \X |
%A, %C, %E |
Special AT Commands |
-J |
S-Registers |
S0, S1, S2, S3, S4, S5, S6, S7, S8, S10, S11, S12, S16, S21, S22, S25, S30, S38 |
Note: See MHI help file for complete information. |
Proprietary AT Command Set
MODE SELECTION | |
Type: | Immediate |
Format: | AT [cmds] #CLS=n [cmds] |
Description: | Selects which mode the modem will operate in. |
Command | Function |
#CLS=0 | Modem will operate in data mode. |
#CLS=1 | Modem will operate in fax class 1 mode. |
#CLS=2 | Modem will operate in fax class 2 mode. |
#CLS=8 | Modem will operate in voice mode. |
SPEAKERPHONE OPTIONS | |||
Type: | Configuration | ||
Format: | AT [cmds] #SPK=x,y,z [cmds] | ||
Description: | Sets various options for speakerphone functions. | ||
Command | Function | ||
x =0 | Microphone enabled. | ||
x =1 | Microphone disabled. | ||
x =2 | Microphone enabled with maximum gain, speaker disabled. | ||
y | Default: | 5 | |
Range: | 0 - 16 | ||
Unit: | -2 dBm | ||
Description: | Sets the attenuation level for speaker output in voice mode. A value of 16 will mute the speaker. | ||
z =0 | Microphone gain set to 0 dBm. | ||
z =1 | Microphone gain set to 6 dBm. | ||
z =2 | Microphone gain set to 9.5 dBm. | ||
z =3 | Microphone gain set to 12 dBm. | ||
VOICE DEVICE | |
Type: | Configuration |
Format: | AT [cmds] #VLS=n [cmds] |
Description: | Selects the I/O device for the DSP chip. |
Note: | This modem may not support all options listed below. The #VLS? command will display the available options. |
Command | Function |
í #VLS=0 | Telephone line and handset used for voice I/O. |
#VLS=1 | Telephone handset used for voice I/O. |
#VLS=2 | Internal speaker only used for voice I/O. |
#VLS=3 | External microphone only used for voice I/O. |
#VLS=4 | Telephone line and handset used for voice I/O; internal speaker enabled. |
#VLS=5 | Headset used for voice I/O. |
#VLS=6 | Speakerphone used for voice I/O. |
#VLS=7 | Handset muted by disconnecting handset or speakerphone from telephone line. |
#VLS=8 | Connects caller ID relay for recording of conversation over handset. |
#VLS=9 | Connects handset (or speakerphone) to DSP chip for recording or playback. |
See ELSA, INC. MICROLINK 33.6TQV for a full command summary.