WESTERMO TELEINDUSTRI AB
MA-21
| 
 Card Type  | 
 Modem (asynchronous)  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 I/O Options  | 
 DC power, RS-232-C, 20 mA current loop via 5-pin terminal block  | 
| 
 Maximum Modem Rate  | 
 19.2Kbps  | 
| 
 Data Modulation Protocol  | 
 C/CCITT V.24/V.28  | 
| 
 Error Correction/Compression  | 
 Unidentified  | 
| 
 Data Bus  | 
 External  | 
| 
 CONNECTIONS  | |||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | 
| 
 Power connector (terminal block)  | 
 CN1  | 
 RS-232-C port  | 
 CN3  | 
| 
 Terminal block  | 
 CN2  | ||
| 
 USER CONFIGURABLE SETTINGS  | ||
| 
 Function  | 
 Label  | 
 Position  | 
| 
 ? 115V AC enabled | 
 S5  | 
 On  | 
| 
 230V AC enabled  | 
 S5  | 
 Off  | 
| 
 TRANSMITTED SIGNAL SELECTION  | ||||
| 
 Setting  | 
 S1/1  | 
 S1/2  | 
 S1/3  | 
 S1/4  | 
| 
 ?? TD pin 2 | 
 On  | 
 Off  | 
 Off  | 
 Off  | 
| 
 AUX pin 11  | 
 Off  | 
 On  | 
 Off  | 
 Off  | 
| 
 SRS pin 19  | 
 Off  | 
 Off  | 
 On  | 
 Off  | 
| 
 DTR pin 20  | 
 Off  | 
 Off  | 
 Off  | 
 On  | 
| 
 CTS CONRTOL SELECTION  | |||||
| 
 Setting  | 
 S1/5  | 
 S1/6  | 
 S1/7  | 
 S1/8  | 
 S1/9  | 
| 
 ? RTS | 
 On  | 
 Off  | 
 On  | 
 On  | 
 Off  | 
| 
 RD  | 
 Off  | 
 On  | 
 Off  | 
 On  | 
 Off  | 
| 
 Always High  | 
 On  | 
 Off  | 
 Off  | 
 On  | 
 On  | 
| 
 TRANSMITTER/RECEIVER SELECTION  | |||||
| 
 Transmitter Setting  | 
 Receiver Setting  | 
 S2/1  | 
 S2/2  | 
 S2/3  | 
 S2/4  | 
| 
 ? Normal | 
 Normal  | 
 On  | 
 Off  | 
 On  | 
 Off  | 
| 
 Inverted  | 
 Normal  | 
 Off  | 
 On  | 
 On  | 
 Off  | 
| 
 Normal  | 
 Inverted  | 
 On  | 
 Off  | 
 Off  | 
 On  | 
| 
 Inverted  | 
 Inverted  | 
 Off  | 
 On  | 
 Off  | 
 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  | 
| 
 LED1  | 
 Unidentified  | 
 On  | 
 Power is on  | 
| 
 LED1  | 
 Unidentified  | 
 Off  | 
 Power is off  | 
| 
 LED2  | 
 Unidentified  | 
 On  | 
 Data is being transmitted  | 
| 
 LED2  | 
 Unidentified  | 
 Off  | 
 Data is not being transmitted  | 
| 
 LED3  | 
 Unidentified  | 
 On  | 
 Data is being received  | 
| 
 LED3  | 
 Unidentified  | 
 Off  | 
 Data is not being received  |