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.