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3.13 External interface
The SELV interface connector EXTERNAL INTERFACE holds four additional transistor binary outputs
(binary outputs 11 ... 14). Unlike regular relay outputs, these outputs are bounce-free (small signals)
and have minimal reaction time.
In addition, two high-frequency counter inputs for up to 100 kHz are available for the testing of energy
meters.
Pin layout
Pin
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
Counter input 1
2
Counter input 2
3
reserved
4
GND
5
Binary output 11
6
Binary output 12
7
Binary output 13
8
Binary output 14
9 ... 16
Reserved
Housing
Grounded
3.13.1 Transistor outputs (binary outputs 11 ... 14)
Characteristic
Specification
Max. switching voltage
15 V
Max. current
5 mA
Min. current
100 µA
Rise time (R
pullup
= 4.7 kΩ; V
external
= 5 V)
< 3 µs
22 kΩ
6.8 kΩ
47 Ω
16 V
Inside of the test set
EXTERNAL INTERFACE connector
V
= 5 ... 15 V
external
R
pullup
Binary outputs 11 ... 14
CMC 430 User Manual
40
OMICRON
Содержание CMC 430
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