
Definitions of Signals and Direction
|
|
| Direction | Description |
|
|
|
|
|
RI |
|
| In | Ring Indicator |
DCD |
|
| In | Data Carrier Detect |
RTS |
|
| Out | Request To Send |
| RTS+ |
| Out | Request to Send |
| RTS- |
| Out | Request to Send |
DSR |
|
| In | Data Set Ready |
TXD |
|
| Out | Transmit Data |
| TXD+ |
| Out | Transmit Data |
| TXD- |
| Out | Transmit Data |
|
| In/Out | Transmit/Receive Data | |
|
| TXD+/RXD+ | In/Out | Transmit/Receive Data |
RXD |
|
| In | Receive Data |
| RXD+ | RXD+ | In | Receive Data |
| RXD- | RXD- | In | Receive Data |
| Signal Ground | |||
CTS |
|
| In | Clear to Send |
| CTS+ |
| In | Clear to Send |
| CTS- |
| In | Clear to Send |
DTR |
|
| Out | Data Terminal Ready |
| Chassis Ground | |||
|
|
|
|
|
Note
Only the UltraPort SI series of cards supports
UltraPort Serial Adaptors User Guide | Chapter 3 Cabling information |
Definitions of Signals and Direction | Page 103 |
|