JLCooper Electronics eBOX GPI8, Руководство пользователя

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The GPI ports on the rear of the eBOX GPI8 are 25 pin D-sub
connectors. The GPI In connector has 8 TTL/CMOS compatible
inputs with internal pull-ups to +5 volts. The GPI Out connector
has 8 TTL/CMOS compatible outputs. On both connectors, pin 1
is the ground reference and pins 2-9 are the GPI signals.
When eBOX GPI8es connected together in a client/server manner
establish a connection, both client and server eBOX GPI8es will
send the state of its GPI In ports to each other so it can be shown
on the GPI Out port on the remote eBOX GPI8. After that,
changes to a GPI In port will cause an eBOX GPI8 to send a GPI
message to the remote eBOX GPI8. Additionally, the eBOX
GPI8es will send a GPI message every 5 seconds to keep the
connection alive and to refresh the state of the GPI outputs.
A packet is sent whenever a change to the GPI In is sensed. At
present, it is sampled about every 20 milliseconds. This can be
changed via the configuration web page.
MSB LSB
Byte1 Pin 9 Pin 8 Pin 7 Pin 6 Pin 5 Pin 4 Pin 3 Pin 2
Byte2 - - - - - - - -
Byte3 - - - - - - - -
eBOX GPI8 GPI In/Out Pinouts