YOKOGAWA WT210, User Manual, Page: 137 / 316

9-1
IM 760401-01E
External In/Output Function
9
Chapter 9 External In/Output Function
9.1 Pin Arrangement and Pin Assignments of the
External I/O Connector (Option)
WARNING
The connectors used in this function have protective covers. When the covers
are removed or when using connectors, the voltage ratings across the
measuring input and the ground become as follows:
Voltage between CURRENT,
±
(VOLTAGE and CURRENT side) input terminals
and ground
400 Vrms max.
Voltage between VOLTAGE input terminal and ground
600 Vrms max.
Put the protective cover on the connector when this function is not used.
Using the external I/O connector, this instrument can be remotely controlled and D/A
output can be done. The connector’s pin sequence and signal assignment is as follows.
Connector’s Pin Arrangement
WT210: 760401 WT230: 760502, 760503
24 13
1 12
(Rear panel)
1
12
13
24
(Rear panel)
Pin Assignment
0.01
µ
F 0.022
µ
F
+5 V
Remote control:input circuit
TTL level
L
H
+5 V
Remote control:output circuit
10 k
Ω
10 k
Ω
100
Ω
: 0 to 0.8V
: 2.0 to 5V
TTL level
L
H : 0 to 0.4 V (8 mA)
: 2.4 to 5 V (–400
µ
A)
/DA4 specifications (for WT210: 760401 only)
remote control, 4 channel D/A output
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
DIGITAL COM
EXT HOLD
EXT START
EXT RESET
No Connection
DA 3ch
DA 1ch
DA COM
DIGITAL COM
EXT TRIG
EXT STOP
INTEG BUSY
DA 4ch
DA 2ch
DA COM
Pin No. Signal Pin No. Signal
(Output)
(Output)
(Output)
(Output)
(Input)
(Input)
(Input)
(Input)
(Input)
(Output)
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection