Sensoray 720RB - Manual (Page 10)

Sensoray Model 720RB/DIN Instruction Manual Page 8
8 Multi-Board configuration
Up to three 720RB boards can be chained together & operated from the system controller through one 80-pin
high-density connector (J4).
When set up in this configuration IO0-23 are on the first board, IO24-47 on the second board and IO48-71 are on
the third board.
The IO on a 720RB board are available on the connectors as follows:
IO0-71 are available on J4
IO0-23 are duplicated on JP1
IO24-47 are duplicated on JP2
IO 48-71 are duplicated on JP3.
The first board is connected to the system controller with an 80-way cable connected to J4. A 50-way ribbon
cable runs from JP2 of the first board to JP1 of the second board. A second 50-way ribbon cable runs from JP3 of
the first board to JP1 of the third board.
Figure 4 Multiple board configuration
J4
JP3
JP1
JP2
To System Controller
1 2
JP1
3
I/O 24-47 I/O 0-23
I/O 48-71
50-way
80-way