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Kenwood IF-10A Instruction Manual page 4

Kenwood interface kit instruction manual
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3. SPECIFICATIONS
3 - 1 . l nte rf ace
C o m m u n i c a t i o n m e t h o d . . . . . .
T r a n s f e r r a t e . . . . . . . . . . . . . . . . . . . . . . . . .
S y n c h r o n i z a t i o n
. . . . . . . . . . . . . . . . . . .
B i t c o n s t r u c t i o n . . . . . . . . . . . . . . . . . . . .
P a r i t y . . . . . . . . . . . .
S i g n a l f o r m a t . . . . . . . . . . . . . . . . . . . . . . . .
Serial interface, full-
d u p l e x
4 8 0 0 B P S ( b i t s p e r s e -
c o n d )
Start-stop (Asynch ron-
o u s )
1 start bit, 8 character
bits, 2 stop bits
N o n e
TTL level
9 t \ P ,
T h i s i s t h e s i g n a l g r o u n d t e r m i n a l .
TXD:
The transmit data is the serial data from the
t r a n s c e i v e r t o t h e c o m p u t e r . T h e o u t p u t u t i l i z e s
n e g a t i v e l o g i c .
RXD:
The receive data is the serial data from the com-
p u t e r t o t h e t r a n s c e i v e r . T h e i n p u t u t i l i z e s n e g a -
t i v e l o g i c .
C T S :
T h i s s i g n a l i s s u p p l i e d f r o m t h e c o m p u t e r , a n d i s
u s e d t o i n h i b i t t r a n s m i t d a t a f r o m t h e t r a n s c e i v e r
when the computer is not ready to receive. The
i n p u t u t i l i z e s p o s i t i v e l o g i c . ( T r a n s m i t d a t a i s
stopped by a logic low.) [Except TS-94OS]
R T S :
T h i s s i g n a l i s a p p l i e d t o t h e c o m p u t e r , a n d i s u s e d
t o i n h i b i t t r a n s m i t d a t a f r o m t h e c o m o u t e r w h e n
the transceiver is not readv to receive it. The out-
p u t u t i l i z e s p o s i t i v e l o g i c . ( l n h i b i t i s r e q u e s t e d
w h e n t h e l e v e l i s l o w . )
C o n n e c t o r p i n c o n f i g u r a t i o n
(Viewed from the rear)
3-2. Terminal connections
P i n N o .
S i g n a l
N a m e
t/o
1
2
3
4 (Note)
5
6
G N D
TXD
R X D
CTS
RTS
N C
S i g n a l g r o u n d
T r a n s m i t d a t a
Receive data
T r a n s m i t e n a b l e
R e c e i v e e n a b l e
Output
I n p u t
I n p u t
O u t p u t
N o t e : F o r t h e T S - 9 4 O S p i n 4 i s + 5 V .

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