SUPRA DIAMOND
SUPRAFAX MODEM 288
Card Type | Fax, Modem (synchronous/asynchronous) |
Chip Set | Rockwell |
Maximum Data Rate | 28.8Kbps |
Maximum Fax Rate | 14.4Kbps |
Data Bus | External |
Fax Class | Class I & II |
Data Modulation Protocol | Bell 103/212A ITU-T V.21, V.22bis, V.23, V.32, V.32bis, V.34 Rockwell V.FC |
Fax Modulation Protocol | ITU-T V.17, V.21, V.21CH2, V.27ter, V.29 |
Error Correction/Compression | MNP5, MNP10, V.42, V.42bis |

CONNECTIONS | ||||||
Function | Label | Function | Label | |||
Line out | CN1 | DC power | CN4 | |||
Line in | CN2 | Power switch | SW1 | |||
RS-232/422 | CN3 | |||||
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
OH | Red | On | Modem is off-hook |
OH | Red | Off | Modem is on-hook |
RD | Red | On | Modem is receiving data |
RD | Red | Off | Modem is not receiving data |
SD | Red | On | Modem is transmitting data |
SD | Red | Off | Modem is not transmitting data |
PWR | Red | On | Power is on |
PWR | Red | Off | Power is off |
ALPH-NUMERIC DISPLAY | |
Display | Condition |
OK | Modem is ready |
AA | Auto-answer enabled |
DI | Modem dialing a number |
RI | Phone is ringing |
CD | Carrier signal detected and modem is connected |
LP | LAPM error correction activated |
DC | Data compression activated |
V34 | V.34 (non-asymmetric) connection |
R34 | Modem is receiving data. When a nn follows, this indicates the receive speed. |
T34 | Modem is transmitting data. When a nn follows, this indicates the transmit speed. |
VF | Modem is connected using V.FC protocol |
28 | Modem connected at 28.8Kbps |
26 | Modem connected at 26.4Kbps |
24 | Modem connected at 24Kbps, if this number follows V34, T34 or R34 |
216 | Modem connected at 21.6Kbps |
192 | Modem connected at 19.2Kbps |
168 | Modem connected at 16.8Kbps |
144 | Modem connected at 14.4Kbps |
120 | Modem connected at 12Kbps |
96 | Modem connected at 9600bps |
48 | Modem connected at 4800bps |
24 | Modem connected at 2400bps, if this number doesn’t follows V34, T34 or R34 |
12 | Modem connected at 1200bps |
3 | Modem connected at 300bps |
RE | Receive error, local modem asking to retransmit data |
TE | Transmission error, remote modem asking to resend data |
RT | Either modem has requested to retrain |
FX | Modem is connected in FAX mode |
Proprietary AT Command Set
See document V1998 for a full command summary.