Star Micronics SP300 - Manual (Page 28)

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3-3. Connectors and Signals
Pin no Signal name Direction Function
1 STROBE IN Signals when data is ready to be read. Signal
goes from HIGH to LOW (for at least 0.5
microsec.) when data is available.
2-9 DATA 1-8 IN These signals provide the information of the
first to eighth bits of parallel data. Each signal
is at HIGH level for a logical 1 and at a LOW
level for a logical 0.
10 ACK OUT A 9 microsecond LOW pulse acknowledges
receipt of data.
11 BUSY OUT When this signal goes LOW, the printer is
ready to accept data. When the printer is in
one of the conditions below. “HIGH” is set.
1. Data being entered.
2. Off line.
3. Error condition.
12 PAPER OUT OUT This signal is normally LOW. It will go
HIGH if the printer runs out of paper.
13 SELECTED OUT This signal is HIGH when the printer is online.
14-15 N/C Unused
16 SIGNAL GND Signal ground.
17 CHASSIS GND Chassis ground, isolated from logic ground.
18 +5VDC +5VDC (Max 50mA)
19-30 GND Twisted pair return signal ground level.
31 RESET IN When this signal goes LOW, the printer is
reset to its power-on condition.
32 ERROR OUT This signal is normally HIGH. This signal
goes LOW to signal that the printer cannot
print due to an error condition.
Refer to Item 8-4 Emergency Suspension.
33 EXT GND External ground.
34 COMPULSION OUT Compulsion signal
35-36 N/C Unused.
This connector mates with an
Amphenol 57-30360 connector
Fig. 3-3 Parallel interface connector (printer side)
(19) (36)
(1) (18)