NV10 Operations Manual – GA333-3
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© Copyright Innovative Technology Limited 2005
7.8: Extended Interface – USA Serial.
The USA Serial interface is a non-isolated interface serial communications protocol.
There is a single output DATA line from the NV8. There are three control lines, two from the controller
‘’ACCEPT ENABLE’’ and ‘’SEND’’ and one from the Validators ‘’IRQ’’.
Caution
:
§
Please note that the NV8 works on a +12volt DC power supply.
§
The NV8 ground must be connected to the ground of the control system.
§
For further details on this protocol please refer to the Series 2000 Interface manual
(reference number 20105-002850046-PS)
Connection Details:
Signal
NV8
12v
15
0v
16
ACCEPT ENABLE
6
SEND
7
IRQ (INTERUPPT)
2
DATA
1
OUT_OF_SERVICE
3
Table 8 - Extended Interface USA Serial
