B&B Electronics PC Watchdog Timer Card ATRWDT Instrukcja Użytkownika Pobierz pdf (Strona 20)

P104-WDG-CSM User Manual

Chapter 5: Connector Pin Assignments

One 40-pin right-angle shrouded 2x20 header connector with 0.1” spacing provides access to

the I/O signals. The standard mating connector is a Molex “crimp and poke” discrete wire type

with a latching feature. Other mating connectors and/or cables may be used.

Table 5-1: Connector P1 Pin Assignments (40 pin shrouded header)

On P104-WDG-E model, connector P1 is replaced with a

four pin header at location of P1 Pins 9, 10, 11 & 12

Pin # Function Pin # Function

Ground

LED1 Cathode

Ground

+5VDC via Resettable fuse

Ground

LED2 Cathode

Ground

Watchdog Output, open

collector, active HIGH, 1k

pull-up to 5V

Watchdog Output, open

collector, active LOW, no

pull-up

Ground

Reset pushbutton input,

TTL active LOW

Ground

Analog input 1, 0 to +5V

+5VDC via Resettable Fuse

Ground

Analog Input 2, 0 to +5V

Ground

Isolated input 1, anode

Isolated input 1, cathode

Isolated output 1, collector

Isolated output 1, emitter

Isolated input 2, anode

Isolated input 2, cathode

Isolated output 2, collector

Isolated output 2, emitter

Ground

+5VDC via Resettable fuse

Fan drive, PWM, open

collector

+12VDC via Resettable fuse

(also fan power)

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 26

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