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Parallel interface (forward channel)
Transmission mode: 8-bit parallel, IEEE-1284 compatibility
mode
Adaptable connector: 57-30360 (Amphenol) or equivalent
Synchronization:
STROBE pulse
Handshaking: BUSY and
ACKNLG signals
Signal level: TTL compatible (IEEE-1284 level 1 device)
The following table lists the parallel connector pin assignments and
describes their respective interface signals.
Pin
no.
Signal
name GND In/Out Description
1
STROBE 19 In Strobe pulse. Input data is
latched at falling edge of the
signal.
2 DATA1 20 In Bit 0: LSB Parallel input data to
the printer.
3DATA221In Bit 1
4DATA322In Bit 2
5DATA423In Bit 3
6DATA524In Bit 4
7DATA625In Bit 5
8DATA726In Bit 6
9DATA827In Bit 7: MSB
10
ACKNLG 28 Out This signal (negative pulse)
indicates that the printer has
received data and is ready to
accept more.
11 BUSY 29 Out A HIGH signal means that the
printer is not ready to accept
data.
12 PE 28 Out A HIGH signal means the
printer is out of paper.
R
Sunflower-E
rev.D
A5 size Appendix
02/05/96
pass 2
Specifications, Command Summary, and Character Tables
A-13