2) The Serial Interface
(cont.)
The Signal Level
RS-232C or TTL levels can be used. The signal level for the RS-232C is
±
12v and
the TTL levels are 0 to 5v, with 5v having a logic “1” value. Signals in both levels
cannot be used or connected at the same time.
The Data type
Parity bit: No parity, odd parity, or even parity can be selected.
Data length: 8 or 7 bits can be selected.
Stop bit: 1 or 2 bits can be selected.
The Transmission speed
9600, 4800, or 1200 baud can be selected.
3) Other Signal Output
The Signal Line
Chapter Two • LD-V8000 Level I & III
2-10
TP 113 v. 2.0 • 2/93
LD-V8000 Level I & III User’s Manual
0
1
START
STOP
D0
D1
D2
D3
D4
D5
D6
D7
1 START + 8 DATA + 1 STOP
Figure 2-K
Pin #
Terminal
Input/Output
Level
11
GND
12
No Connection
13
AUX 1
OUTPUT
TTL
14
AUX 2
OUTPUT
TTL
15
GND
Figure 2-L
* DOC = “Drop Out Compensated”