D-2. Cable Connections
The followings are a recommended interface cable connections.
| Printer side |
| Host side |
|
|
| 25 pin | 9 pin |
|
FG | 1 | 1 |
| FG |
TXD | 2 | 2 | 3 | TXD |
RXD | 3 | 3 | 2 | RXD |
RTS | 4 | 4 | 7 | RTS |
CTS | 5 | 5 | 8 | CTS |
DSR | 6 | 6 | 6 | DSR |
SG | 7 | 7 | 5 | SG |
DTR | 20 | 8 | 1 | DCD |
INIT | 25 | 20 | 4 | DTR |
Note: Use shielded wire less than 3m in length.
| Printer side |
| Host side |
|
|
| 9 pin | 25 pin |
|
NC | 1 |
| 1 | FG |
RXD | 2 | 2 | 3 | RXD |
TXD | 3 | 3 | 2 | TXD |
DTR | 4 | 7 | 4 | RTS |
SG | 5 | 5 | 7 | SG |
DSR | 6 | 8 | 5 | CTS |
RTS | 7 | 6 | 6 | DSR |
CTS | 8 | 1 | 8 | DCD |
NC | 9 | 4 | 20 | DTR |
Note: Use shielded wire less than 3m in length.
D-3. Electrical Characteristics
Voltage | Data signal | Control signal | Binary status |
|
|
|
|
Mark | OFF | 1 | |
|
|
|
|
+3V to +15V | Space | ON | 0 |
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