MICROCOM, INC.
DESKPORTE 28.8P
Card Type | Modem (synchronous/asynchronous) |
Processor | Z80182 |
Processor Speed | 18.4MHz |
Chipset | Microcom |
Maximum Onboard Memory | 32KB SRAM/128KB Flash ROM |
Maximum Data Rate | 28.8Kbps |
Maximum Fax Rate | 14.4Kbps |
Data Bus | Serial, parallel |
Fax Class | Class I & II |
Data Modulation | Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 Rockwell V.FC |
Fax Modulation | Unidentified |
Error Correction/Compression | MNP5, MNP10, V.42, V.42bis |
CONNECTIONS | ||||||
Function | Label | Function | Label | |||
Line out | CN1 | RS-232/422 port | CN4 | |||
Line in | CN2 | DC power | CN5 | |||
Parallel port | CN3 | Power switch | SW1 |
DIAGNOSTIC LED(S) (POWER-UP) | |||
AA | TM | HS | Condition |
Off | On | Off | RAM test failed |
Off | On | Off | Modem failed |
On | On | On | CPU test failed |
Off | Off | Off | All tests passed |
DIAGNOSTIC LED(S) (NORMAL OPERATION) | |||
LED | Color | Status | Condition |
AA | Unidentified | On | Auto-answer enabled |
AA | Unidentified | Off | Auto-answer disabled |
AA | Unidentified | Blinking | Phone is ringing |
RD | Unidentified | Blinking | Modem is receiving data |
RD | Unidentified | Off | Modem is not receiving data |
SD | Unidentified | Blinking | Modem is transmitting data |
SD | Unidentified | Off | Modem is not transmitting data |
CD | Unidentified | On | Carrier signal detected |
CD | Unidentified | Off | Carrier signal not detected |
OH | Unidentified | On | Modem is off-hook |
OH | Unidentified | Off | Modem is on-hook |
TR | Unidentified | On | DTR signal is high |
TR | Unidentified | Off | DTR signal is low |
TM | Unidentified | On | Modem is performing self-test |
TM | Unidentified | 2s blink | RAM test failed |
TM | Unidentified | 1s blink | ROM test failed |
TM | Unidentified | 2/3s blink | Data pump test failed |
TM | Unidentified | Off | Self-tests passed |
HS | Unidentified | On | Modem is not connected or is connected at between 4800bps and 12Kbps |
HS | Unidentified | Blinking | Modem is connected at 14.4Kbps or faster |
HS | Unidentified | Off | Modem is connected at less than 4800bps |
SUPPORTED STANDARD COMMANDS |
Basic AT Commands |
+++, ‘comma’, A/ |
A, B, E, H, I, L, M, O, P, Q, T, V, W, X, Y, Z |
&D, &F, &G, &M, &P, &T, &W, &X, &Y, &Z |
Extended AT Commands |
\A, \B, \C, \E, \J, \N, \Q, \T |
%A, %C, %E, %F, %G |
Special AT Commands |
-J, *H, )M, @M, :E |
S-Registers |
S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S12, S14, S16, S18, S22, S23, S25, S26, S27 |
Note: See MHI documentation for complete information. |
Proprietary AT Command Set
DISPLAY BLACKLIST NUMBERS | |
Type: | Immediate |
Format: | AT [cmds] *N [cmds] |
Description: | Displays the list of all the numbers on the blacklist (whether they are delayed/forbidden or not), and their statuses. |
DISPLAY DELAYED NUMBERS | |
Type: | Immediate |
Format: | AT [cmds] *D [cmds] |
Description: | Displays the list of all delayed numbers and their statuses. |
DISPLAY FORBIDDEN NUMBERS | |
Type: | Immediate |
Format: | AT [cmds] *F [cmds] |
Description: | Displays the list of all forbidden numbers and their statuses. |
CONNECT SPEED MATCHING | ||
Type: | Configuration | |
Format: | AT [cmds] %Ln [cmds] | |
Description: | Selects whether the modem will attempt to match the connect speed of the remote modem. | |
Command | Function | |
%L0 | Modem will connect at speeds supported by the protocol selected only. | |
í %L1 | Modem will match connect speeds. | |
%L2 | Modem will connect only at current speed. | |
%L3 | Modem will use V.8 automode with fallback to ITU-T automode to match speeds. | |
%L4 | Modem will use V.8 automode to match speeds. |
V.34 TRAINING RESPONSE | ||
Type: | Register | |
Format: | AT [cmds] :T42=n [cmds] | |
Description: | Sets what speed the modem will choose after a V.34 train. | |
Command | Function | |
í :T42=0 | Standard speed selection. | |
:T42=1 | Choose speed approximately 2 speeds faster than standard. | |
:T42=2 | Choose speed approximately 1 speed faster than standard. | |
:T42=3 | Standard speed selection. | |
:T42=4 | Choose speed approximately 1 speed slower than standard. | |
:T42=5 | Choose speed approximately 2 speeds slower than standard. |
See MICROCOM, INC. DESKPORTE FAST for a full command summary.