User's Manual

Turbo PMAC PCI HRM
Connector Pinouts 53
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 Select 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 fault input for Chan. 5
12 HF46 Input Amp Fault AMP fault input for Chan. 6
13 HF47 Input Amp Fault AMP fault input for Chan. 7
14 HF48 Input Amp Fault AMP fault input 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)
TB1 (4-Pin Terminal Block)
Top View
Pin # Symbol Function Description Notes
1 GND Common Digital Ground
2 +5V Input +5V Supply Reference to digital ground
3 +12V Input +12V TO +15V Supply Reference to digital ground
4 -12V Input -12V TO -15V Supply Reference to digital ground
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.