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phone: 360.260.2468
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sales: 800.736.0194
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fax: 360.260.2469
email: sales@usdigital.com
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website: www.usdigital.com
11100 ne 34th circle
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vancouver, washington 98682 USA
AD4-B
Quadrature to RS232 Adapter
US
Digital
C o r p o r a t i o n
TM
Price:
$140 / 1
$124 / 10
$116 / 50
$108 / 100
$101 / 500
$ 96 /1000
Cost Modifiers:
Add $15 for D-interface (differential)
Subtract $5 for NP-option (no power supply)
Includes:
PS-9V (power supply)
USD-SW (software)
The AD4-B adapter provides a simple plug-in method for connect-
ing a single-ended or differential quadrature encoder directly to an
RS232 serial com port. One end of the AD4-B plugs into a standard
serial port, while the other end plugs into a quadrature encoder.
A quadrature counter (LS7166) inside the AD4-B keeps track of
encoder position, while a microprocessor provides a serial inter-
face allowing the user to query the counter for encoder position.
A Windows library is provided to give the user simple access to
AD4-B functions, and a sample program in Visual Basic provides
a template for the user's custom application. The encoder interface
IC used in this product can be purchased separately. See the
LS7166 data sheet for complete information.
The AD4 communicates with a host computer using an eight bit
binary format; binary format, while not readable as ASCII text,
minimizes communication latency and makes data storage compact.
The equipment connected to an AD4 must support eight bit data
transfer at a baud rate between 1200 and 115k baud.
US Digital warrants its products against defects in materials and
workmanship for two years. See complete warranty for details.
Description:
Technical Data, Rev. 04.02.03, April 2003
All information subject to change without notice.
Ordering Information:
AD4-B -
Part #:
Interface:
S = Single-ended
D = Differential
Options:
NP = No power supply
Mechanical Drawing:
Parameter
Min.
Typ.
Max.
Units
Supply Voltage (into AD4-B)
6.0
9.0
16
Volts
Supply Current (without encoders)
-
-
65
mA
RS232 Output High (RXD)
5.0
8.0
-
Volts
RS232 Output Low (RXD)
-
-8.0
-5.0
Volts
RS232 Input High (TXD)
3.5
-
15
Volts
RS232 Input Low (TXD)
-15
-
0.4
Volts
Current Supply to Encoder
-
-
120
mA
Voltage Supply to Encoder
4.8
5.0
5.25
Volts
Quadrature Input Frequency
0
-
1.2
MHz
Quadrature Encoder Inputs
Logic Low
-0.6
0.4
1.8
Volts
Logic High
2.0
3.0
5.7
Volts
Specifications apply over entire operating temperature range.
Typical values are specified at Vcc=12V and 25C.
Compatible Cables & Connectors:
Finger-latching:
5-pin
10-pin
Description
CON-FC5-22*
CON-FC10
Connector
CA-3133-1FT
-
Connector on one end with 4 12" wires
CA-3132-1FT
-
Connector on one end with 5 12" wires
CA-3131-6FT
CA-4217-6FT
Connector on one end of a 6' shielded
round cable
CA-3620-6FT
CA-3619-6FT
Connectors on both ends of a 6' shielded
round cable
* 22 AWG is standard. 24, 26 and 28 AWG are also readily available.
Attention:
Specify cable length when ordering.
Custom cable lengths are available. See the Cables & Connectors data sheet
for more information.
Electrical Characteristics:
Pin
Description
1
Ground
2
Ground
3
Index-
4
Index+
5
A- channel
6
A+ channel
7
+5VDC power
8
+5VDC power
9
B- channel
10
B+ channel
Differential
Pin-out:
Pin
Description
1
Ground
2
Index
3
A channel
4
+5VDC power
5
B channel
Single-ended
Pin-out:
Parameter
Min.
Max.
Units
Storage Temperature
-40
100
C
Operating Temperature
0
70
C
Humidity (non-condensing)
0
95
%
120 VAC Power Supply Input Power
-
6
Watts
Absolute Maximum Ratings:
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