Measurement Computing SC-1608 Series - Manual (Page 23)

SC-1608 Series User's Guide Functional Details
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Mechanical drawing
Figure 14. SCC-8-8-2 baseboard mechanical dimensions
Digital output logic control
The behavior of a digital output module is determined by the configuration of SW2, invert logic jumper W1,
and the output logic state set on the OEM DAQ board.
The table below defines how a digital output module behave according to the configuration of the digital output
logic state, the position of
SW2 switches, and the setting of invert logic control jumper W1 .
Logic table
Digital Output Logic State SW2 Position W1 Position Digital Output Module
Logic 0 Output Invert Off
Logic 1 Output Invert On
Logic 0 Output Non-Invert On *
Logic 1 Output Non-Invert Off
* With this configuration, the SSR modules will turn On if the DAQ OEM device loses power. This scenario does not
normally occur because the SCC-8-8-2 is configured by default for inverting logic.
Signal connections
Analog input
Analog input signals CH0 to CH7 are mapped to both the User I/O connector and to 8B analog input locations
CH0 to CH7.
Analog input channels CH8 to CH15 on USB-1608G-OEM Series boards are mapped to the User I/O header
connector only. These signals are not present on the E-1608-OEM board.
Analog output
E-1608-OEM and SC-1608X-2AO-USB channels AOUT0 and AOUT1 are mapped to 8B module locations
CH8 and CH9 and to the header connector.
Locations CH8 and CH9 are wired for output by default.
 Use jumpers J29/32 to convert the CH8/CH9 module location to input.
 Use jumpers J30/32 to scale the analog output voltage from the default ±10 V to ±5 V.
Refer to 8B analog I/O module control jumpers on page 19 for information about the settings for each jumper.