Enhanced Remote I/O Interface - QuadTech Guardian 2500 Series Instruction Manual

3.4

Enhanced Remote I/O Interface

An enhanced remote I/O interface is available as an option to the Guardian 2500 Series,
through a 25 pin DIN connector on the rear panel of the instrument. This option also
includes the RS-232 interface. Refer to Table 3-2 for signal names, pin numbers as
necessary for cable connections.
Signal Name Pin Number
Ground
Pass2
Fail1
Pass1
Ut1
FailHi
FailLo
FailArc
FailGC
Ut2
+5V
Fail2
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Table 3-2
Parallel Interface Connections
Outputs:
1, 7,25 Signal ground
4 Used in conjunction with Pass1, relay closure
indicating pass condition.
until next test started.
5 Used in conjunction with Fail2, relay closure
indicating fail condition. Relay remains closed until
STOP button is pressed.
6 Relay closure indicating pass condition.
8 Used in conjunction with Ut2, relay closure
indicating test in process. Relay remains closed
until test is completed.
14 Fail due to High Limit
15 Fail due to Low Limit
16 Fail due to Arc Limit
17 Fail due to Gnd Continuity Limit
20 Relay closure indicating test in process
21 +5VDC through 100 ohms
22 Relay closure indicating fail condition.
Function
Relay remains closed
Interface