GENERAL SPECIFICATIONS
NO
ITEM
Description
1
K e y c o n t a c t t e c h
G o l d c r o s s p o i n t , l i n e a r f e e l
2
Number of keys
1 9 ( 1 8 k e y s o f 1 x 1 , 1 k e y o f 1 x 2 )
3
Display method
Liquid Crystal display
4
Number of char
32 characters (16 columns x 2 lines)
5
C h a r a c t e r
5 x7 dot matrix, 96 alphanumeric
6
C a r d s t a n d a r d
I S O 7 8 1 1 / 2
7
I n t e r f a c e
RS232C
AT keyboard
8
P o w e r s u p p l y
9 - 12Vdc External (RS232)
INTERFACE SPECIFICATIONS
1. RS232
C o n n e c t o r t y p e : D- sub 9 pin (Female)
NO
Signal
Direction
Function description
2
TXD
To PC/Host
T r a n s m i t d a t a
3
RXD
From PC/Host
R e c e i v e d a t a
4
DSR
From PC/Host
PC/Host ready signal
5
GND
Signal ground
6
DTR
To PC/Host
Pin pad ready signal
C o n n e c t o r t y p e : D C - jack
NO
Signal
Direction
Function description
+
VPP
F r o m a d a p t e r
9 - 1 2 V d c , 2 5 0 m A
-
GND
F r o m a d a p t e r
2. AT Keyboard
C o n n e c t o r t y p e : P S / 2 , m a l e f o r P C , f e m a l e f o r s t a n d a r d k e y b o a r d
