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25 PIN SUB-D Stift (DTE) am Computer |
25 PIN SUB-D Buchse (DCE) am Modem |
| Pin | Name | Beschreibung | Pin | Name | Beschreibung |
|---|---|---|---|---|---|
| 1 | GND | Shield Ground | 13 | S.CTS | Secondary Clear to Send |
| 2 | TXD | Transmit Data | 14 | S.TXD | Secondary Transmit Data |
| 3 | RXD | Recieve Data | 15 | TCK | Transmission Signal Element Timing |
| 4 | RTS | Request to Send | 16 | S.RXD | Secondary Recieve Data |
| 5 | CTS | Clear to Send | 17 | RCK | Reciever Signal Element Timing |
| 6 | DSR | Data Set Ready | 18 | LL | Local Loop Control |
| 7 | GND | System Ground | 19 | S.RTS | Secondary Request to Send |
| 8 | CD | Carrier Detect | 20 | DTR | Data Terminal Ready |
| 9 | RESERVED | 21 | RL | Remote Loop Control | |
| 10 | RESERVED | 22 | RI | Ring Indicator | |
| 11 | STF | Select Transmit Channel | 23 | DSR | Data Signal Rate Selector |
| 12 | S.CD | Secondary Carrier Detect | 24 | XCK | Transmit Signal Element Timing |
| 25 | TI | Test Indicator |