User's Manual

ITC2100-NA Operation and Service Manual Version 1.0

Page 107 of 129

Fig. 7-6: Pin connections of the optocoupler inputs on the sync card

Designation

in service

web interfac

Pins

D-Sub9 connctor on

SC card

(inputs):

Description:

Channel 1

Channel 5

1 / 4

7 / 9

IN 0 / GND 0:

IN 1 / GND 1:

Galvanic isolated inputs, potential-free. As

standard resistors R43 and R47 are not fitted.

Note:

 If R43 or R47 (0) is fitted, GND 0 (pin 1) or

GND 1 (pin 9) is connected to ITC chassis

and therefore no longer potential-free.

 Input 0 (pins 1/4) is used as "Local Alarm"

 Input 1 (pins 7/9) is used as "Digital input".