User's Manual

Turbo PMAC2 VME Ultralite
Connector Pinouts 17
J6 (JDISP) Display Connector
J6/JDISP (14-Pin Header)
Front View
Pin # Symbol Function Description Notes
1 VDD Output +5V Power Power supply out
2 VSS Common PMAC Common
3 RS Output Read Strobe TTL signal out
4 VEE Output Contrast Adjust Vee 0 TO +5 VDC *
5 E Output Display Enable High is Enable
6 R/W Output Read or Write TTL signal out
7 DB1 Output Display Data1
8 DB0 Output Display Data0
9 DB3 Output Display Data3
10 DB2 Output Display Data2
11 DB5 Output Display Data5
12 DB4 Output Display Data4
13 DB7 Output Display Data7
14 DB6 Output Display Data6
The JDISP connector is used to drive the 2-line x 24-character (Acc-12), 2 x 40 (Acc-12A) LCD, or the 2
x 40 vacuum fluorescent (Acc 12C) display unit. The DISPLAY command may be used to send
messages and values to the display.
J7 (JHW) Handwheel Encoder Connector
J7/JHW (20-Pin Header)
Pin # Symbol Function Description Notes
1 GND Common Reference Voltage
2 +5V Output Supply Voltage To power external circuitry
3 HWA1+ Input HW Pos A Chan. Also pulse input
4 HWA1- Input HW Neg A Chan. Also pulse input
5 HWB1+ Input HW Pos B Chan. Also direction input
6 HWB1- Input HW Neg B Chan. Also direction input
7 HWA2+ Input HW Pos A Chan. Also pulse input
8 HWA2- Input HW Neg A Chan. Also pulse input
9 HWB2+ Input HW Pos B Chan. Also direction input
10 HWB2- Input HW Neg B Chan. Also direction input
11 PUL1+ Output PFM Pos Pulse Also PFM output
12 PUL1- Output PFM Neg Pulse Also PFM output
13 DIR1+ Output PFM Pos Dir. Out Also PFM output
14 DIR1- Output PFM Neg Dir. Out Also PFM output
15 PUL2+ Output PFM Pos Pulse Also PFM output
16 PUL2- Output PFM Neg Pulse Also PFM output
17 DIR2+ Output PFM Pos Dir. Out Also PFM output
18 DIR2- Output PFM Neg Dir. Out Also PFM output
19 GND Common Reference Voltage
20 +5V Output Supply Voltage To power external circuitry
This connector provides the interface for two quadrature encoders, typically to be used as handwheel or
time base master encoders. It also provides two channels of pulse-and-direction or PWM top-and-bottom
pair outputs.
TB1 (2/4-Pin Terminal Block)