Newport XPS-D - GPIO4 Connector; Digital Encoder Inputs (Driver Boards & DRV00 P)

XPS-D Controller Start-Up Manual
6.2.3 GPIO4 Connector
GPIO4
NOTE
Mating connector: Male SUB-D37 with UNC4/40 lockers.
GPIO4
Pin #
Function
Pin #
Function
1
+5 V (max 63 mA)
20
GND
2
+12 V (max 63 mA)
21
GND
3
Analog Output 1
22
GND
4
Analog Output 2
23
GND
5
Analog Output 3
24
GND
6
Analog Output 4
25
GND
7
Analog Output 5
26
GND
8
Analog Output 6
27
GND
9
Analog Output 7
28
GND
10
Analog Output 8
29
GND
11
N.C.
30
GND
12
Analog Input 1
31
GND
13
Analog Input 2
32
GND
14
Analog Input 3
33
GND
15
Analog Input 4
34
GND
16
Analog Input 5
35
GND
17
Analog Input 6
36
GND
18
Analog Input 7
37
GND
19
Analog Input 8
Figure 25: GPIO4 the extended analog I/O pin out.
6.3 Digital Encoder Inputs (Driver Boards & DRV00P)
All digital encoder inputs are RS-422 standard compliant:
• All digital encoder signals are not isolated, but are referenced to the electrical
ground (GND).
• Encoder signals must be differential pairs (using 26LS31 or MC3487 line driver
type circuits). Encoder inputs have a terminating impedance of 120 Ω.
• Inputs are always routed on differential pairs. For a high level of signal integrity, we
recommend using shielded twisted pairs of wires for each differential signal.
• Encoder power supply is +5 V @ 250 mA maximum (referenced to the electrical
ground) and is sourced directly by the driver boards. The +5 V power supply is low
noise (approximately 20 mVpp), fuse protected up to 500 mA/plug, and supplies
5.13 V without load.
39 EDH0395En1031 – 09/18