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SCSI 2 Connector (JP2)

Pin Function Pin Function
1 A1 26 -A1
2 B1 27 -B1
3 I1 28 -I1
4 A2 29 -A2
5 B2 30 -B2
6 I2 31 -I2
7 A3 32 -A3
8 B3 33 -B3
9 I3 34 -I3
10 A4 35 -A4
11 B4 36 -B4
12 I4 37 -I4
13 Analog axis 1 38 Analog axis 1 gnd
14 Analog axis 2 39 Analog axis 2 gnd
15 Analog axis 3 40 Analog axis 3 gnd
16 Analog axis 4 41 Analog axis 4 gnd
17 E-stop in 42 EN1
18 Vin 43 EN2
19 Brake output 44 EN3
20 Spindle output 45 Opto-isolated gnd
21 +5V 46 GND
22 Home switch axis 1 47 Home switch axis 2
23 Home switch axis 3 48 Home switch axis 4
24 49 Overtravel axis 2
25 Overtravel axis 3 50 Overtravel axis 4

I/O connector (JP5)

Configure Jumper JP4 before use, refer to jumper section.

All even numbered pins are GND.

Pin Function
1 IN15
3 IN14
5 IN13
7 IN12
9 IN11
11 IN10
13 IN9
15 IN8
17 IN7
19 IN6
21 IN5
23 IN4
25 IN3
27 IN2
29 IN1
31 IN0
33 OUT7
35 OUT6
37 OUT5
39 OUT4
41 OUT3
43 OUT2
45 OUT1
47 OUT0
49 Voltage selected by JP4 or apply external voltage here with JP4 removed

Jumpers

JP4

I/O voltage selection jumper for JP5 I/O voltage

  • Select 12V, pin 1 to 2 or 5V (Default) pin 2 to 3
  • Leave jumper off for external voltage

JP7

Home switch jumper selection

  • Jumper position pins 1 to 2 – 12V (Default)
  • Jumper position pins 3 to 4 – 5V
  • Jumper position pins 5 to 6 – external voltage

JP1

Timer selection

  • Jumper must be installed between pins 1 and 2
  • No other combination may be used

JP6

I2C connector (not implemented)

JP8

E-Stop on I2C connector selection

  • Remove to enable E-stop on JP6
  • A jumper must be installed here if there is no E-stop switch connected to JP6
  • A jumper is installed by default. The board will not function without this jumper without the I2C option installed.

JP3

JTAG connector for programming firmware.

  • For factory use only