併列介面
Image
Specifications
Item |
Specification |
Data input method |
8-bit parallel (conforms to Centronics) |
Hand shake |
STROBE, BUSY, and ACK |
Connector Pin Assignment
Pin NO. |
Signal |
IN/OUT |
Function |
1 |
STROBE |
IN |
Data strobe |
2~9 |
DATAO~7 |
IN |
Carries input data 1 when high and 0 when low |
10 |
ACK |
OUT |
Indicates that the printer cannot accept any data |
11 |
BUSY |
OUT |
Indicates that the printer cannot accept any data |
12 |
PE |
OUT |
Indicates that there is no paper |
13 |
SLCT |
OUT |
Indicates that the printer is ON LINE |
14 |
AUTO LF |
IN |
Enters the automatic carriage return mode when low at power on |
15 |
NC |
- |
No connection |
16 |
GND |
- |
Ground |
17 |
FG |
- |
Frame ground |
18 |
NC |
- |
No connection |
19~30 |
GND |
- |
Ground for twist pair return signal |
31 |
INIT |
IN |
Initialize |
32 |
ERROR |
OUT |
Indicates an error has occurred |
33 |
GND |
- |
Ground |
34 |
NC |
- |
No connection |
35,36 |
+5V |
- |
Normally, pulled at 4.7k when high |
Serial
Specifications
Item |
Specification |
Synchronous method |
Asynchronous |
Baud rate |
75,110,150,300,600,1200,2400,4800,9600, or 19200(bps) |
Start bit |
1 bit |
Data bit |
7 bit or 8 bit |
Parity bit |
Odd, Even or None |
Stop bit |
1 bit |
Data input method |
RS-232-C |
Busy controller |
H / W BUSY (mode) X-ON / X-OFF (mode) |
Connector Pin Assignment
Pin# |
Signal |
IN/OUT |
Function |
1 |
NC |
- |
No connection |
2 |
TxD |
OUT |
Out put XON /OFF |
3 |
RxD |
IN |
Recieves data from host device |
4 |
NC |
- |
Connected to pin6 |
5 |
SG |
- |
Shgnal ground |
6 |
NC |
- |
Connected to pin4 |
7 |
NC |
- |
No connection |
8 |
RTS |
OUT |
Data transmission request signal |
9 |
NC |
- |
No connection |
Connector: 9-pin D-sub
Connector attached:RDED-9SE-LN(05)