| Signal |
|
|
Pin# | Name | Type | Description |
1 | RXD | input | Receive Data |
|
|
|
|
2 | TXD | output | Transmit Data |
|
|
|
|
3 | CTS | input | Clear To Send from host |
|
|
|
|
4 | RTS | output | Request To Send |
|
|
| set high when printer is ready |
|
|
| to accept a command or data |
|
|
|
|
5 | GND |
| Ground |
|
|
|
|
6 | NC |
| No Connect |
|
|
|
|
7 | DSR | input | Data Set Ready |
|
|
| low to high transition turns |
|
|
| printer on, high to low transi- |
|
|
| tion turns printer off (if en- |
|
|
| abled) |
|
|
|
|
8 | DTR | output | Data Terminal Ready |
|
|
| set high when printer is on. |
|
|
| Set to battery voltage |
|
|
| for “S” versions( comptable |
|
|
| with Symbol™ PIM) |
|
|
|
|
2
4 | 5 |
| |
1 | 3 |
6 | 7 |
| 8 |
Figure 23 Communications Port (8 pin Circular DIN)
62
QL Series User Guide