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Pin Assignments
GPI Pin Assignments
To connect external equipment to the GPI connectors
on the rear panel of the ES-7, attach the supplied GPI
connectors to the connection cables.
The GPI pin assignments on the ES-7 side are as
follows.
GPI (PARALLEL) connector
5
9
Pin no.
Signal
1
TTL1 OUT
2
RELAY1
3
RETURN1
4
TTL3 OUT
5
GND
6
TTL2 OUT
7
RELAY2
8
RETURN2
9
TTL4 OUT
GPI (232) connector
1
6
Pin no.
Signal
1
N.C.
2
GPI RXD IN
3
GPI TXD OUT
4
(DTR)
5
SIGNAL GND
6
(DSR)
7
(RTS)
8
(CTS)
9
N.C.
Pins 4 and 6 are connected internally.
Pins 7 and 8 are connected internally.
94
Chapter 3 Connections and Settings
1
6
5
9
Computer Connection Section
Pin Assigments
PRINTER connector
13
25
Pin no.
Signal
1
STROBE
2
DATA1
3
DATA2
4
DATA3
5
DATA4
6
DATA5
7
DATA6
8
DATA7
9
DATA8
COM 1 and COM 2 connectors
1
6
Pin no.
Signal
1
CD
2
RD
3
TD
4
ER
5
SG
6
DR
7
RS
8
CS
9
RI
1
14
Pin no.
Signal
10
ACKNLG
11
BUSY
12
PE
13
SLCT
14
AUTOFD
15
ERROR
16
INIT
17
SLCTIN
18 to 25 GND
5
9
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