SMAC CBC-EIP - Page 9

9
For the purpose of interfacing I/Os and STOs between the CBC-EIP and external devices,
electrical schematics are given in Figures 4 – 7.
Figure 4. Digital inputs electrical schematic.
Figure 5. Digital outputs electrical schematic.
Digital input common
Pin 5
Digital input 1
+3.3 V
To CBC’s microcontroller
To CBC’s microcontroller
To CBC’s microcontroller
Digital input 2
Digital input 3
Digital input 4
10KΩ
10KΩ
10KΩ
(5VDC – 24 VDC)
Pin 1
(5VDC – 24 VDC)
Pin 2
(5VDC – 24 VDC)
Pin 3
(5VDC – 24 VDC)
Pin 4
To CBC’s microcontroller
10KΩ
Digital output 1
Digital output 2
Digital output 3
Digital output 4 / STO FB
Digital output common
(5 VDC – 24 VDC or GND)
Pin 13
(5 VDC – 24 VDC or GND)
Pin 12
(5 VDC – 24 VDC or GND)
Pin 11
(5 VDC – 24 VDC or GND)
Pin 10
(5 VDC – 24 VDC or GND)
Pin 9
From CBC’s microcontroller
From CBC’s microcontroller
From CBC’s microcontroller
From CBC’s microcontroller
330Ω
330Ω
330Ω
330Ω
Internal to SMAC
CBC EIP controller
Internal to SMAC
CBC EIP controller