Delta Data Systems PMAC PCI - JS2: A;D Port 2 Connector; JS2 (16-Pin Header); Tb1 (Jpwr)

PMAC-PC Hardware Reference
PMAC-PCI Base Board Connector Pinouts 55
JS2: A/D Port 2 Connector
JS2 (16-Pin Header)
Front View
Pin #
Symbol
Function
Description
Notes
1
DCLK
Output
D to A, A to D Clock
DAC and ADC clock for Chan. 5,
6, 7, 8
2
BDATA2
Output
D to A Data
DAC data for Chan. 5, 6, 7, 8
3
ASEL2/
Output
Chan. Select Bit 2
DAC data for Chan. 5, 6, 7, 8
4
ASEL3/
Output
Chan. Select Bit 3
Select for Chan. 5, 6, 7, 8
5
CNVRT23
Output
A to D Convert
ADC convert sig. Chan 5, 6, 7, 8
6
ADCIN2
Input
A to D Data
ADC data for Chan. 5, 6, 7, 8
7
OUT5/
Output
Amp-Enable/Dir.
Amp Enable/Dir for Chan. 5
8
OUT6/
Output
Amp-Enable/Dir.
Amp Enable/Dir for Chan 6
9
OUT7/
Output
Amp-Enable/Dir.
Amp Enable/Dir for Chan 7
10
OUT8/
Output
Amp-Enable/Dir.
Amp Enable/Dir for Chan 8
11
HF45
Input
Amp. Fault
Amp Enable/Dir for Chan 5
12
HF46
Input
Amp. Fault
Amp Enable/Dir for Chan 6
13
HF47
Input
Amp. Fault
Amp Enable/Dir for Chan 7
14
HF48
Input
Amp. Fault
Amp Enable/Dir for Chan 8
15
+5V
Output
+5V Supply
Power supply out
16
GND
Common
PMAC Common
Acc-28A/B connection; digital amplifier connection.
TB1 (JPWR)
Top View
Pin #
Symbol
Function
Description
Notes
1
GND
Common
Digital Ground
2
+5V
Input
+5V Supply
Ref. to digital GND.
3
+12V
Input
+12V to15V Supply
Ref. to digital GND.
4
-12V
Input
-12V to15V Supply
Ref. to digital GND.
This terminal block may be used as an alternative power supply connector if PMAC PCI is not installed in a PC-
bus. The +5V powers the digital electronics. The +12V and -12V, if jumpers E85, E87, and E88 are installed,
power the analog output stage (this defeats the optical isolation on PMAC).
To keep the optical isolation between the digital and analog circuits on PMAC, provide analog power (+/-12V to
+/-15V and AGND) through the JMACH connector, instead of the bus connector or this terminal block.