 Acer File Extensions |
Epson C82305*/C82306* (Type B, 0KB)
This serial interface card is an interface card that allows synchronous either RS-232D or 20 mA Current loop serial data communication between a host computer and an Epson printer. The main features of the card are:-
- Handshaking protocol using X-ON/X-OFF or DTR flag control.
- Selectable data word structure. This allows a user to choose parity (odd, even, none or ignore) and word bit settings (either 7 or 8 bits)
- Selection of baud rate settings from 75 to 19200 bps. (Data transmission speed is limited to 1200bps when the transmission is set to 20mA Current loop.
| Switch No. | Function | On | Off |
|---|---|---|---|
| SW1-1 | Interface card | Enable | Disable |
| SW1-2 | Word length selection | 8 bits | 7 bits |
| SW1-3 | Parity check 1 | See table 2 | |
| SW1-4 | Parity check 2 | See table 2 | |
| SW1-5 | Bit rate selection | See table 1 | |
| SW1-6 | Bit rate selection | See table 1 | |
| SW2-1 | Bit rate selection | See table 1 | |
| SW2-2 | Bit rate selection | See table 1 | |
| SW2-3 | Handshaking | DTR | X-ON / X-OFF |
| SW2-4 | RS-232D/Current loop | RS-232D | Current loop |
| Jumper | Function | ||
|---|---|---|---|
| J1 | ON: Pull up TTY-TXD to +12V via 470-ohm resistor. | ||
| J2 | ON: Connect TTY-TXD Return to signal ground. | ||
| J3 | ON: Pull up TTY-RXD to +5V via 200-ohm resistor. | ||
| J4 | ON: Connect TTY-RXD Return to signal ground. | ||
| Flag polarity selection for handshaking | |||
| J5 | JNOR | ON: MARK(not accept data)=Negative EIA level MARK(not accept data)=Current ON | |
| JREV | ON: MARK(not accept data)=Positive EIA level MARK(not accept data)=Current OFF | ||
| JG | ON: Connect protective ground to signal level | ||
Table 1
| Baud Rate | SW1-5 | SW1-6 | SW2-1 | SW2-2 |
|---|---|---|---|---|
| 75 | ON | ON | OFF | OFF |
| 110 | OFF | OFF | OFF | ON |
| 134.5 | OFF | ON | OFF | ON |
| 150 | ON | OFF | OFF | ON |
| 200 | ON | ON | OFF | ON |
| 300 | OFF | OFF | ON | OFF |
| 600 | OFF | ON | ON | OFF |
| 1,200 | ON | OFF | ON | OFF |
| 1,800 | ON | ON | ON | OFF |
| 2,400 | OFF | OFF | ON | ON |
| 4,800 | OFF | ON | ON | ON |
| 9,600 | ON | OFF | ON | ON |
| 19,200 | ON | ON | ON | ON |
Table 2
| Parity Check | SW1-3 | SW1-4 |
|---|---|---|
| None | OFF | OFF |
| Ignore | OFF | ON |
| Odd | ON | OFF |
| Even | ON | ON |