Applanix POS MV V4 - Figure 10: Type I Event Generator

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POS MV V4 User Guide

Installation

2-30

GND reference connected to Isolated Event 1 Signal Return

(pin 7). For Event 2, the output must be connected to the

Isolated Event 2 (pin 3) with the GND reference connected to

Isolated Event 2 Signal Return (pin 8). Outputs from most of

the 5 V TTL Logic CMOS devices belong to this group and

can directly drive the isolated event inputs.

• Type II event generator with an open collector or open drain

type output capable of sinking (sourcing) a current of 5 - 10

mA. For Event 1, the output must be connected to the

Isolated Event 1 Signal Return (pin 7) with the +5 Vdc source

connected to the Isolated Event 1 (pin 2). For Event 2, the

output must be connected to the Isolated Event 2 Signal

Return (pin 8) with the +5 Vdc source connected to the

Isolated Event 2 (pin 3). Standard TTL or TTL LS devices

with open collector outputs belong to this group.

3. The following four Figures demonstrate the possible configurations for

the Event 1 and Event 2 inputs.

EVENT 1 IN

EVENT 1 IN RETURN

74HC4050

1 2

min. 5 mA

EVENT PULSE

Figure 10: Type I Event Generator - I/O Configuration

Applanix POS MV V4 - Figure 10: Type I Event Generator - I;O Configuration