User's Manual

Turbo PMAC2 PCI Hardware Reference Manual
Baseboard Connector Pinouts 31
J9 (JMACH1) Connector Description (Continued)
Pin # Symbol Function Description Notes
98 GND Common Reference voltage
99 +5V Output/Input +5V power For external circuit or from
external supply
100 +5V Output/Input +5V power For external circuit or from
external supply
The JMACH1 connector provides the interface pins for channels 1 and 2. Usually, it is connected to a breakout
board, such as one of the Acc-8x family of boards, or an application-specific interface board.
Connector: 100-pin male box header with center key, 0050" pitch. AMP part # 1-04068-7
Delta Tau part # 014-00010-FPB.
J10 (JMACH2) Connector Description
J10 (JMACH2)
Pin # Symbol Function Description Notes
1 +5V Output/Input +5V power For external circuit or from external
supply
2 +5V Output/Input +5V power For external circuit or from external
supply
3 GND Common Reference voltage
4 GND Common Reference voltage
5 CHA3+ Input Encoder 3 positive A channel Also pulse input
6 CHA3- Input Encoder 3 negative A channel Also pulse input
7 CHB3+ Input Encoder 3 positive B channel Also direction input
8 CHB3- Input Encoder 3 negative B channel Also direction input
9 CHC3+ Input Encoder 3 positive C channel Index channel
10 CHC3- Input Encoder 3 negative C channel Index channel
11 CHU3 Input Channel 3 U flag Hall effect, fault code, or sub-count
12 CHV3 Input Channel 3 V flag Hall effect, fault code, or sub-count
13 CHW3 Input Channel 3 W flag Hall effect, fault code, or sub-count
14 CHT3 Input Channel 3 T flag Fault code or sub-count
15 USER3 Input General purpose user flag Hardware capture flag or sub-count
16 PLIM3 Input Positive overtravel limit Hardware capture flag
17 MLIM3 Input Negative overtravel limit Hardware capture flag
18 HOME3 Input Home switch input Hardware capture flag
19 ACCFLT3 Input Accessory fault flag For loss of ACC supply voltage
20 WD0/ Output Watchdog output Low is PMAC watchdog fault
21 SCLK34+ Input/Output Encoder sample clock Direction controlled by PMAC2
jumper
22 SCLK34- Input/Output Encoder sample clock Direction controlled by PMAC2
jumper
23 ADC_CLK3+ Output A/D converter clock Programmable frequency
24 ADC_CLK3- Output A/D converter clock Programmable frequency
25 ADC_STB3+ Output A/D converter strobe Programmable sequence
26 ADC_STB3- Output A/D converter strobe Programmable sequence
27 ADC_DAA3+ Input Channel A ADC serial data MSB first