Mesa 7I47S User Manual

7I47S MANUAL

8/12 channel motion oriented differential interface with analog out

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Table of Contents

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

HARDWARE CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

TERMINATION ENABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

CONNECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

CONNECTOR LOCATIONS AND DEFAULT JUMPERS . . . . . . . . . . . . . . . . . 3

CONTROLLER CONNECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

RS-422 CONNECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

AUX 5V POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

OPERATION

5V POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

RS-422 OUTPUT DRIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

INPUT OUTPUT POLARITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

MONITOR / ENCODER LEDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

ANALOG OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

ISOLATED OUTPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

7I47S 1

GENERAL

DESCRIPTION

The 7I47S is a 12 input, 8 output RS-422 interfface for Mesa’s Anything I/O series
of FPGA interface cards. The 7I47 has 12 receive and 8 transmit channels plus a analog
output intended for spindle speed control. The 7I47S is mainly intended for motion oriented
applications, for example as an output buffer and line receiver for connecting step and
direction drives and encoders to Anything I/O FPGA cards.

The controller connection is a 50 pin header that matches the pinout of Mesa’s
Anything I/O cards. All RS-422 interface connections use pluggable Phoenix compatible

3.5 mm screw terminals.