34
(E)
LT20A / LT30 Series
Signal
N.C
SG (Signal GND)
RXD (Received data)
TXD (Transmit data)
CTS (Clear to send)
RTS (Request to send)
+10 V
N.C
Pin
No.
1
2
3
4
5
6
7
8
＜
＞
＜
＞
I/O
I
O
I
O
Signal
—
SG
TXD
RXD
RTS
CTS
DSR
•
RS-TRG (I/O connector (Common))
An “L” (ON) input 1 causes the measured values to be
output via the RS-232C connector.
9. RS-232C Interface (only RS-232C model)
The counter unit is connected to a personal computer to
use the computer to control the counter unit. (See “5-1-3.
RS-232C model”.)
9-1. Terminal pin assignment
Rear panel of counter unit
RS-232C
Connected
equipment side
Signal
•
RS-232C
8
7
6
5
3
4
1
2
RC-232C
7 6 5 4 3 2 1
7 6 5 4 3 2 1
1 2 3 4 5 6 7
A
B
SIG. IN A
SIG. IN B
FG +V 0V
DC IN
(Common)
I/O connector
Summary of Contents for LT20A Series
Page 3: ...J 1 LT20A LT30 Series...
Page 4: ...2 J LT20A LT30 Series I O DC I O AC...
Page 7: ...J 1 LT20A LT30 Series 1 1 1 1 2 DC DC I O AC I O BCD...
Page 18: ...12 J LT20A LT30 Series 4 3 6...
Page 29: ...J 23 LT20A LT30 Series 5 2 4 1 5 1 5 mm M A X M I N P P C P L1 2 3 4 P B...
Page 30: ...24 J LT20A LT30 Series 1 mm 2 1 mm 3 4 5 2 1 1 mm 2 I O 2 RS 232C L 1 1 6 A...
Page 54: ...48 J LT20A LT30 Series 12 1 ON 6 F 5 ON...
Page 56: ...50 J LT20A LT30 Series...
Page 166: ......
