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NXC-I/O10 Input/Output Control Card
15
NetLinx Cardframe, Control Cards, and NetModules
Setting the Voltage Clamp Jumper (+12V or Open)
Set the V- Clamp jumper (J31) to +12 V (default) to clamp any voltage connected to I/O ports 1-10 to 12 V.
Set to Open for connections that will draw more than 12 V. Remember, the +12 V and OPEN settings are only
enabled when the I/O ports are set to SW mode. The V-Clamp jumper settings are described below:
When this jumper is Open, it is the technician's responsibility to clamp the external source relay anytime the
voltage exceeds 12 V. The source relay should always be clamped if the voltage exceeds 12 V. Contact the
relay manufacturer to determine the size of the diode in the source relay.
In switch mode, the A terminals are connected to the NetLinx Controller's ground.
Sources that require isolation from the Controller's ground should use voltage mode,
and provide switched DC power for sensing as required.
+12 V mode setting
(default)
Use the default setting for all loads that require less than 12 V.
Open mode setting
When this jumper is set to Open, and an I/O port is used as an
output, the I/O port is rated at 85 mA @ 28 VDC.
Summary of Contents for NetLinx NXC-COM2
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Page 14: ...NXF CardFrame and NetModules 6 NetLinx Cardframe Control Cards and NetModules...
Page 24: ...NXC I O10 Input Output Control Card 16 NetLinx Cardframe Control Cards and NetModules...
Page 32: ...NXC IRS4 4 Port IR S Control Card 24 NetLinx Cardframe Control Cards and NetModules...
Page 49: ...NXC VOL4 Volume Control Card 41 Enter the Document Name Here...