(Al computer)Disponibile su DEC Multia e DEC UDB (Universal Desktop Box). Contiene due porte seriali in un unico contenitore, la prima porta e' collocata nei normali pins, la seconda e' invece in quelli rimanenti.
(Al computer)
25 PIN D-SUB MASCHIO al computer.
| Pin | Port | Name | Dir | Description |
|---|---|---|---|---|
| 1 | n/c | Not connected | ||
| 2 | 1 | TXD |  |
Transmit Data |
| 3 | 1 | RXD |  |
Receive Data |
| 4 | 1 | RTS | |
Ready To Send |
| 5 | 1 | CTS | |
Clear To Send |
| 6 | 1 | DSR | |
Data Set Ready |
| 7 | 1+2 | GND | - | Ground |
| 8 | 1 | DCD | |
Data Carrier Detect |
| 9 | n/c | Not connected | ||
| 10 | n/c | Not connected | ||
| 11 | 2 | DTR | |
Data Terminal Ready |
| 12 | 2 | DCD | |
Data Carrier Detect |
| 13 | 2 | CTS | |
Clear To Send |
| 14 | 2 | TXD | |
Transmit Data |
| 15 | n/c | Not connected | ||
| 16 | 2 | RXD | |
Receive Data |
| 17 | n/c | Not connected | ||
| 18 | n/c | Not connected | ||
| 19 | 2 | RTS | |
Ready To Send |
| 20 | 1 | DTR | |
Data Terminal Ready |
| 21 | n/c | Not connected | ||
| 22 | 1 | RI | |
Ring Indicator |
| 23 | 2 | DSR | |
Data Set Ready |
| 24 | n/c | Not connected | ||
| 25 | 2 | RI | |
Ring Indicator |