Impulse 463N Manual do Utilizador descarregar pdf (Página 88)

©Sealevel Systems, Inc.

SL9049 - 11/2010

SeaI/O Manual

The SeaI/O-462 and SeaI/O-463 use 74ABT245 octal bi-directional transceivers to provide TTL

input/output capabilities and can sink 64mA and source 32mA. Each bit is pulled to +5V through a

10K ohm pull-up resistor to insure each bit is at a known state when not driven. The maximum

output power is +5V @ 1A (5W).

The SeaI/O-462‟s 96 digital I/O channels are brought out to two DB-78 Female connectors on

the front of the enclosure (pinout shown below). Each connector provides 48 bits of digital I/O

divided into six eight-bit ports. Each port may be individually configured via software command

as an input or an output.

Bits 1-48

Bits

Bits 49-96

Bits

1 2 ... 83 84 85 86 87 88 89 90 91 92 93 ... 108 109

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