
Apex Signal, A Division of NAI, Inc.
Bohemia, NY 11716 USA
www.naii.com
Code: 0VGU1
Model
PC104-73DL1
Specifications
PC104-73DL1
Rev D
Sheet
4
of
4
PROGRAMMING
INSTRUCTIONS
:
Power ON:
sets all outputs to zero, optional excitation supply to 360 Hz and no output.
Wrap around
:
Can be read at any time and indicates the actual output. Read the Hi byte first. Hi byte read holds Lo byte
until read.
Optional Excitation Supply:
For frequency,
write a 16 bit word (Ex: 400 Hz = 110010000) to 06h/07h. For voltage,
write a 16 bit word (Ex: 26.1 Vrms =100000101) with Lsb=0.1 Vrms, to 08h/09h. It is recommended that user program the
required frequency before setting the output voltage.
To read status
:
Read 18h for excitation, 16h for Signal, 04h for accuracy.
Test:
“1” Accuracy OK; “0” failed; Status:
“1”
Exc. On, Signal On. “0” Exc. and/or Signal loss.
CONNECTOR:
Samtec TSW-104-25-T-D-R-A Mate: IDC 4x2 .1”
Pin
Lo
Hi
Exc. Hi (In)
Exc. Lo (In)
Ch.A 1
4
7
Ch.B
3
2
Pin numbers
7
5
8
6
Facing pins
Exc. Hi Out) Exc. Lo (Out)
5
3
4
1
2
8
6
PART NUMBER DESIGNATION
Environmental
C = No conformal coating
K = Removable conformal coating
L = Permanent conformal coating
Total number Channels
Options
0 = none
9 = custom (see separate spec)
Reference Supply
R = On-board
Reference
73DL1- 1 X X X X
BUS
1 = 8-bit ISA bus
2 = 16-bit ISA bus