8
4
Interface Specifications
O.D
: Open Drain,
T.S
: 3 state I/O,
TTLIN
: TTL Input
D-sub 25 pin (Female)
13 12 11 10 9 8 7 6 5 4 3 2 1
25 24 23 22 21 20 19 18 17 16 15 14
!
Printer Interface (LPT1)
Pin
No.
SPP/ECP
Mode
Signal
Name
EPP
Mode
Signal
Name
Direction
Electrical
Specif.
Pin
No.
SPP/ECP
Mode
Signal
Name
EPP
Mode
Signal
Name
Direction
Electrical
Specif.
1
STRB
WRITE
In/Output
O.D/T.S 14
AUTOFD
DSTRB
In/Output
O.D/T.S
2
DATA0
DATA0
In/Output
T.S
15
ERROR
ERROR
Input
TTL
3
DATA1
DATA1
In/Output
T.S
16
INIT
INIT
In/Output
O.D/T.S
4
DATA2
DATA2
In/Output
T.S
17
SLCTIN
ADSTRB
In/Output
O.D/T.S
5
DATA3
DATA3
In/Output
T.S
18
GND
GND
6
DATA4
DATA4
In/Output
T.S
19
GND
GND
7
DATA5
DATA5
In/Output
T.S
20
GND
GND
8
DATA6
DATA6
In/Output
T.S
21
GND
GND
9
DATA7
DATA7
In/Output
T.S
22
GND
GND
10
ACKNLG
ACKNLG
Input
TTL
23
GND
GND
11
BUSY
WAIT
Input
TTL
24
GND
GND
12
PE
PE
Input
TTL
25
GND
GND
13
SLCT
SLCT
Input
TTL
Screw Size:
(4-40): Inch Type
!
USB Interface (USB)
Receptacle
Pin No.
Name
1
Vcc
2
- Data
3
+ Data
4
GND
1 2 3 4
