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B-3. Connectors and Signals
Pin No. Signal Name
1
STROBE
2-9
DATA1-8
10
ACK
11
BUSY
12
PAPER OUT
13
SELECTED
14-15
N/C
16
SIGNAL GND
17
CHASSIS GND
18
+5VDC
19-30
GND
31
RESET
32
ERROR
33
EXT GND
34
OUT1
35
N/C
36
(19)
(1)
Fig. B-3. Parallel interface connector (printer side)
IN/OUT
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.
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.
OUT
A 9 microsecond LOW pulse acknowledges receipt of
data.
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.
OUT
This signal is normally LOW. It will go HIGH if the
printer runs out of paper.
OUT
This signal is HIGH when the printer is online.
Not connected
Signal ground.
Chassis ground, isolated from logic ground.
+5VDC (Max 50 mA)
Twisted pair return signal ground level.
IN
When this signal goes LOW, the printer is reset to its
power-on condition.
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.
External ground.
OUT
Unused.
Not connected
The printer side is always set to HIGH.
(36)
This connector mates with an
Amphenol 57-30360 connector
(18)
– 93 –
Function
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