Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Mesa 7I44
Summary of Contents for Mesa 7I44
- Page 1 7I44 MANUAL 8 CHANNEL RS-422 INTERFACE V1.1...
- Page 2 This page intentionally almost blank...
-
Page 3: Table Of Contents
RS-485 CAPABLE CHANNELS ........6 INTERFACING WITH MESA SERIAL DEVICES ..... . . 6 SPECIFICATIONS . -
Page 4: General
GENERAL DESCRIPTION The 7I44 is a 8 channel RS-422/RS-485 interface for Mesa s Anything I/O series of FPGA interface cards.The 7I44 has 8 independent receive and transmit channels. Each transmit channel has a independent drive enable for bus or 2 wire half duplex systems. -
Page 5: Hardware Configuration
CABLE/AUX 5V POWER TOP = CABLE 5V POWER CABLE POWER/P1/TB2 POWER SELECTION The 7I44 can get its operating power from the flat FPGA cable or from P1. For testing and with very low power remote devices, cable power can be used. W1 selects whether cable power connects to the 7I44s 5V supply. -
Page 6: Connectors
CONNECTORS CONNECTOR LOCATIONS AND DEFAULT JUMPER POSITIONS 7I44 3... -
Page 7: Controller Connector
50 pin header connector J1 connects to the anything I/O card/motion controller. This can be a male 50 pin header on the top of the 7I44 card or a female 50 conductor header on the bottom side of the 7I44 depending on 7I44 model. -
Page 8: Connectors
All RJ-45 jacks have the same pin-out. This pin-out is complementary to the pin-out used on all of Mesa’s remote serial devices. When used with Mesa devices a straight through CAT 6 cable is required. In addition to providing full duplex RS-422 communication the CAT6 cable provides a small amount of 5V power to some remote devices. -
Page 9: Operation
7I44 be powered form an external 5V source (W1 DOWN) RS-485 CAPABLE CHANNELS All of the serial channels on the 7I44 have output enables and can be used for RS- 485 half duplex type applications. For 2 wire half duplex type RS-485 interfaces, the RX+ and TX+ lines and the RX- and TX- lines should be tied together at the 7I44. -
Page 10: Specifications
MAXIMUM DATA RATE MBIT/S RS-422 INPUT COMMON MODE RANGE Volts RS-422 TERMINATION RESISTANCE RS-422 OUTPUT LOW Volts (24 mA sink current) RS-422 OUTPUT HIGH VCC-2.5 Volts (24 mA source current) OPERATING TEMP. OPERATING TEMP. (-I version) OPERATION HUMIDITY NON-COND 7I44 7... -
Page 11: Drawings
DRAWINGS 7I44 8...
Need help?
Do you have a question about the 7I44 and is the answer not in the manual?
Questions and answers