The 7I69 is a remote digital I/O card with 48 digital I/O bits. All I/O bits are 5V TTL compatible open collector type drivers with 15 mA sink capability per I/O pin. When output pins are set high, they may be used as inputs. Each I/O pin has a 3.3K pullup for direct connection with switches, optosensors etc. I/O connectors are 50 pin headers with I/O module rack compatible pinouts. The pinout and drive capabilities make the 7I69 compatible with Opto22 I/O module racks. The pinout is also compatible with Mesa’s standard FPGA daughter cards allowing the 7I69 to drive up to 2 simple isolator daugter cards like the 7I37. A MPG option uses 8 input pins to provide high speed encoder counting. The RS-422 interface at 2.5M Baud is compatible with HostMot2s SSLBP smart serial interface which can support as many as 32 7I69 cards for a total of 1536 I/O bits with real time update rates up to 10 KHz and cable lengths up to 100 feet.
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