User's Manual

ITC2100-NA Operation and Service Manual Version 1.0
© SWISSPHONE Wireless AG
Page 115 of 129
All inputs are equipped as indicated in the following description. A connection variation Opto
IN 0 and 4 permits the I/O card's 13.8V supply to be used to operate an external circuit.
The maximum cross-section of the connection wires is1mm
2
.
Fig. 7-13: Opto-coupler input pin connecttions on the I/O card
Designation
in service
web interface
Pins
Connection at I/O card (in-
puts):
Description:
Channel 2
Channel 7
Channel 3
Channel 4
Channel 6
2 / 3
4 / 5
6 / 7
8 / 9
11/12
Opto IN 0 / Opto GND 0:
Opto IN 1 / Opto GND 1:
Opto IN 2 / Opto GND 2:
Opto IN 3 / Opto GND 3:
Opto IN 4 / Opto GND 4:
Galvanic isolated inputs, potential-free
Note:
 If VCC (13.8) or GND of the I/O card
is used for an external circuit, the
input is no longer galv. isolated.
 If BR182 (0) is fitted, Opto GND 0
to 4 (pins 3,5,7,9,12) are connected
to ITC chassis. If not fitted, thse
pins are potential-free.
Channel 2
Channel 6
2 / 1
11/10
Opto IN 0 / VCC or Open 0:
Opto IN 4 / VCC or Open 4:
As standard no function, i.e. pin 1 and
10 are open, BR181 and BR185 are not
fitted.
If BR18/1 BR185 are fitted pins 1/10 are
connected to VCC (13.8V) and they are
therefore no longer potential-free.