5 INSTALLATION
34
TITAN VERSA Operations and Maintenance Manual
LACO Technologies
Local I/O Pinout
PIN Function
I/O Group
Comments
1
+5 V
Digital Output Power
Use with digital outputs
2
Start / Stop Test
Digital Input
Connect pin to GND to start
or stop test
3
Ground
Ground
For analog outputs and digital
input
5
Analog Output 1
Analog Output (0-10 VDC)
Default to Leak Rate Mantissa
4
Analog Output 2
Analog Output (0-10 VDC)
Default to Leak Rate
Logarithmic
6
Analog Output 3
Analog Output (0-10 VDC)
Default to Leak Rate
Exponent
7
Selected Test
Mode Reached
Digital Output
Open Collector. Connect 5V
pin and output pin.
8
Leak Rate greater
than Reject Point
Digital Output
Open Collector. Connect 5V
pin and output pin.
Figure 3:
Local I/O Pin Locations
The local I/O is provided primarily for the analog output features. See Local I/O
operation section for details on configuring local analog inputs.
NOTICE:
Digital outputs utilize 5-volt open collector logic with very low
current. LACO recommends using a solid-state relay with a 5-volt coil (P/N:
LMSA5981) to drive other voltages (i.e. 24 VDC) or larger current loads.