MTS FlexTest Models 200 - Manual (Page 183)

Model 494.47 Dual UART/Encoder Interface Card
MTS FlexTest® Models 40/60/100/200 Controller Hardware Mezzanine Cards 183
Model 494.47 Dual UART/Encoder Interface Card
About the Model 494.47 Dual UART/Encoder Card
The Model 494.47 UART/Encoder is a mezzanine card that you can plug
into one of the slots on the Model 494.40 I/O Carrier board. The UART/
Encoder card includes two interfaces that you can configure for two UART
devices or two digital transducers. The device mode and other parameters
are software configurable.
Software setup for the card includes selecting the device type (UART or
digital transducer). If you select digital transducer as the device type, you
must also select a mode. These settings determine the operation and pin
assignments for the card.
UART configuration
When configured for UART devices, each channel can support a different
device. The UART configuration supports devices such as the Model 494.05
Handset and the Model 409 Temperature Controller.
Digital transducer
configuration
When configured for digital transducers, both transducers must be the same
type. Supported digital transducer types include:
• Incremental encoders with quadrature outputs
• SSI devices such as Temposonics R transducers
• Gurley absolute encoders
• Temposonics G transducers
• Counters
External clock output
The Model 494.47 card can also be configured to provide differential RS-
485 external-clock and external-trigger outputs to synchronize external
systems (such as data acquisition systems) to the controller clocks.