WESTERMO TELEINDUSTRI AB
MD-21
Card Type | Modem |
Chip Set | Unidentified |
I/O Options | 9-pin serial port (RS-232), terminal blocks (3) |
Maximum Modem Rate | 19.2Kbps |
Data Modulation Protocol | ITU-T V.24/V.28 |
Error Correction/Compression | Unidentified |
Data Bus | External |
CONNECTIONS | |||
Function | Label | Function | Label |
DCE serial port (terminal block) | CN1 | Network interface (terminal block) | CN3 |
Power connector (terminal block) | CN2 | 9-pin serial port | CN4 |
INVERTED TRANSMITTER/RECEIVER SELECTION | |||
Setting | S1/1 | S1/2 | |
» | Transmitter and receiver normal | Off | Off |
Transmitter inverted, receiver normal | On | Off | |
Transmitter normal, receiver inverted | Off | On | |
Transmitter and receiver inverted | On | On |
RECEIVER ACTIVE/PASSIVE SELECTION | |||||||
Setting | S3/1 | S3/2 | S3/3 | S3/4 | S3/5 | S3/6 | |
» | Passive | On | On | Off | Off | Off | Off |
Active | Off | Off | On | On | On | On |
TRANSMITTER ACTIVE/PASSIVE SELECTION | |||||||
Setting | S4/1 | S4/2 | S4/3 | S4/4 | S4/5 | S4/6 | |
» | Passive | On | On | Off | Off | Off | Off |
Active | Off | Off | On | On | On | On |
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
PWR | Unidentified | On | Power is on |
PWR | Unidentified | Off | Power is off |
RD | Unidentified | On | Modem is receiving data |
RD | Unidentified | Off | Modem is not receiving data |
TD | Unidentified | On | Modem is transmitting data |
TD | Unidentified | Off | Modem is not transmitting data |