Clarity INT9 A/D Especificaciones descargar pdf (Pagina 33)

Clarity - INT9 A/D converter Tables and specifications

33

5.2 Parameters of digital Inputs and Outputs

The card contains eight digital TTL outputs

(OUT1-OUT8) with a maximum permissible

current of 20 mA at both levels. The first four

outputs are also designed as relay contacts

(OUT1S1/OUT1S2- OUT4S1/OUT4S2).

The maximum permissible current is 100 mA,

the maximum-switched voltage is 100 V and

the contact resistance is 150 m

Ω

. The relay is

onstate (closed) when there is a LOW level of a

relevant digital output.

The card contains 4 digital inputs IN1 to IN4.

To suppress contact bouncing the digital

inputs are equipped with monostable toggles

that prolong any change affecting the input to

at least 200 ms (to ensure that the station is

able to detect it).

A pulse with duration of at least 1 ms is

necessary in order to excite the toggles.

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