Parallel (Centronics) 4. ASCIITABLE
The parallel port is a standard 36-pin Centronics. Its pin
assignments are listed as following.
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NUL 0 @ P ' P
SON XON ! 1 A Q a q
STX " 2 B R b r
XOFF # 3 C S c s
$ 4 D T d t
NAK % 5 E U e u
ACK & 6 F V f v
BEL ‛ 7 G W g w
BS ( 8 H X h x
) 9 I Y i y
LF * : J Z j z
ESC + ; ; K [ k {
FF , < L \ 1 I
CR - = M ] m }
SO RS . > N ^ n ~
SI US / ? O _ o DEL
Pin Direction Definition Pin Direction Definition
1 In /STROBE 13 Out SELECT
2 In Data1 14,15 NC
3 In Data 2 16 - Ground
4 In Data3 17 - Ground
5 In Data4 18NC
6 In Data5 19~30 - Ground
7 In Data6 31 NC
8 In Data7 32 Out /Fault
9 In Data8 33~36 - NC
10 Out /ACK
11t Out BUSY
12 Out PE
Auto Polling
Both the serial port and parallel port of this printer can be activated at
the same time, i.e the printer can simultaneously communicate with two
PC via different port. However as no port contention is made for this
printer, if both PC transmit data at the same time to this printer, the data
may become damaged in the receiving buffer.
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