BK-S216
User Manual
- 36 -
¾
Level:
MARK = -3 to -15 V: Logic "1"/ OFF
SPACE = +3 to +15 V: Logic "0"/ ON
¾
Baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600,115200 bps
¾
Data bit:
8 bit or 7bit
¾
Parity bit:
None, even, or odd
¾
Stop bit: 1bit
¾
connector : 9 pins serial connector(Female)
Caution
: Baud rate, data bit and parity bit are set by EEPROM.
6.1.2 Interface signal assignment and function
Signal function is described as the following table:
PIN NO
Signal name
Signal direction
function
1 NO
2
RXD
input
Data input terminal
3
TXD
output
Data output terminal
4
DTR
output
Data terminal is ready
5 SG
—
Signal
ground
6
DSR
hang
Data device is ready
7
RTS
output
Request to send
8
CTS
input
Allow to send
9
FG
—
Printer cover grounding
Table 6.1.1 Signal function
6.2 IEEE1284 Parallel interface (optional)
RS-232 serial interface is the standard interface of the printer, and IEEE 1284 Parallel interface is the
optional one, and works in compatible mode (For interface position, please refer to figure 3.5.1 Parallel
interface configuration model).
6.2.1 Parameters
Data transmission: 8 bits Parallel
Synchronization mode: nStrobe signal is provided by exterior
Handshaking:
Busy signal
Signal level:
TTL compatible
Connector: 36 pins Centronics connector (IEEE1284 compliant)
6.2.2 The influence of printer status to parallel interface (/FAULT pin and PE pin)
Status
/FAULT
PE
Normal high low
Paper end
low
high
Print head Overheated
low
low
Upper cover open
low
low
Cutter error
low
low
Table 6.2.1 /FAULT pin and PE pin explanation
When above errors occur, information can be obtained by reading the status of correlative pins of parallel
interface
.
