User`s manual

49
Digital I/O
Digital I/O
Overview of Digital I/O
The 1100R+ has digital I/O capability, which allows you to setup the tester to control external
devices with tester functions. You can also use an input on tester to start a test.
For example, the tester could be built into cabinet that does not allow the operator to access
the display. However, by using the External Switch Input, you could allow the operator to start
a test with a switch on the outside of the cabinet. Additionally, if the cable didn’t pass the test,
you could use two of the tester’s outputs to activate a buzzer and red light.
The digital I/O port is located on the back of
the tester. The location and pinout of the
connector are as shown.
9
10 11
12 13
1514
12
3
45
6
78
The table below explains each of the signals on the IO port. Note there is one “External Switch
”
input, six user-programmable outputs, two power pins, and two ground pins.
Pin Explanation
1 Input External Switch, 0-24VDC
5 Output User-programmable
6 Output User-programmable
7 Output User-programmable
8 Output User-programmable
9 Power + 5 volts DC, 100 milliamps max.
10 Output User-programmable
11 Output User-programmable
12 Power + 10 volts DC, 100 milliamps max.
14 Ground
15 Ground
Digital I/O