463 series – 96 channel ttl 50-pin – Impulse 520W User Manual
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463 Series – 96 Channel TTL 50-Pin
The SeaI/O-463 offers 96 bits of buffered drive TTL I/O via four internal industry-
standard 50-pin header connectors. The interface module addresses the 96 channels
of I/O as 12 eight-bit ports, each programmable as input or output. Using standard
50-pin IDC ribbon cables, connect up to four industry standard relay racks for PC
based control and automation of equipment including sensors, switches, security
control systems, and other industrial automation systems. A metal strain relief
bracket is included to secure the cables after installation.
The SeaI/O-463 uses 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.
Power Requirements
Max Output Power:
+5VDC @ 1A (5W)
Inputs
Logic High:
Max 0.8VDC
Logic Low:
Min 2VDC
Outputs *
Logic High:
Max 0.5VDC @ 64mA
Logic Low:
Min 2VDC @ 32mA
NOTE:
The SeaI/O-463 modules are designed to work with industry
standard solid-state relay racks that expect negative logic to operate.
The SeaI/O-463 modules expect negative logic on the inputs.
© Sealevel Systems, Inc.
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SeaI/O User Manual