Epson FX 1170 User Manual - Page 136

Interface Specifications, Specifications and Pin Assignments, Synchronization, Handshake thing

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Interface Specifications Your printer is equipped with an 8-bit parallel interface. Specifications and pin assignments The built-in parallel interface has the following characteristics: Data format: S-bit parallel Synchronization: STROBE pulse Handshake thing: BUSY and ACKNLG signals Signal level: TTL-compatible Connector: 36-pin 57-30360 Amphenol connector or equivalent The table below provides the connector pin assignments and describes their respective interface signals. Signal Return Signal Direction Description Pin Pin 1 19 STROBE IN STROBE pulse to read data. Pulse width must be more than 0.5 microseconds at the receiving terminal. 2 20 DATA 1 IN 3 21 DATA 2 IN 4 22 DATA3 IN 5 23 DATA4 IN 6 24 DATA5 IN 7 25 DATA6 IN 8 26 DATA 7 IN 9 27 DATA8 IN These signals represent information of the 1 st to 8th bits of parallel data, respectively. Each signal is at HIGH level when data is logical 1 and LOW when it is logical 0. IO 28 ACKNLG OUT About a 12-microsecond pulse. LOW indicates that data has been received and that the printer is ready to accept more data. Technical Specifications 7-11

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Interface Specifications
Your printer is equipped with an 8-bit parallel interface.
Specifications and pin assignments
The built-in parallel interface has the following characteristics:
Data
format:
S-bit parallel
Synchronization:
STROBE pulse
Handshake thing:
BUSY and ACKNLG signals
Signal level:
TTL-compatible
Connector:
36-pin 57-30360 Amphenol connector or
equivalent
The table below provides the connector pin assignments and
describes their respective interface signals.
Signal Return Signal
Direction Description
Pin
Pin
1
19
STROBE IN
STROBE pulse to read data. Pulse width
must be more than 0.5 microseconds at
the receiving terminal.
2
20
DATA 1 IN
These signals represent information of the
3
21
DATA 2 IN
1 st to 8th bits of parallel data,
4
22
DATA3 IN
respectively.
5
23
DATA4 IN
Each signal is at HIGH level when data is
6
24
DATA5 IN
logical 1 and LOW when it is logical 0.
7
25
DATA6 IN
8
26
DATA 7 IN
9
27
DATA8 IN
IO
28
ACKNLG OUT
About a 12-microsecond pulse. LOW
indicates that data has been received and
that the printer is ready to accept more
data.
Technical Specifications
7-11