HBSW-8000 Datasheet, PDF (4/5 Pages) Agilent(Hewlett-Packard) – Hewlett-Packard SmartWand Bar Code Reader

Connector
The standard connector is a 9 pin male D
connector. There is also an option for the cable
to have stripped and tinned wires.
Pin Diagram
Pin #
1
2
Wire
Color
-
White
3
Green
4, 5, 6
7
8
9
Shell
-
Black
-
Red
Braid
Function
N/C
TxD Transmitted Data
(from the Reader)
RxD Received Data
(to the Reader)
N/C
Ground
N/C
V_CC
Shield
Shield and ground are tied together in the
connector.
1
2
3
4
5
6
7
8
9
MALE 9 PIN SUBMINIATURE D CONNECTOR
TxD Output Specifications
(V_CC = 4.5 V, T_A = 25°C)
Min.
V_OH 4.4 V @ 20 µA
3.8 V @ 6 mA
V_OL
I_OL
Max.
0.10 V @ -20 µA
0.33 V @ -6 mA
35 mA
TxD Circuit
TxD
74HCT240
Pin 3 RxD - The received data signal RxD
expects the standard asynchronous serial data
format. It will accept either CMOS level or true
RS-232 level signals. The figure below shows the
equivalent input circuit.
RxD Input Specifications
(V_CC = 5.0 V, T_A = 25°C)
V_IH
2.0 V 500 µA
V_IL
0.8 V @ 1 µA
RxD Circuit
RxD
4.7 kΩ
100 kΩ
74HCT240
Pin Description
Pin 2 TxD - The data output signal TxD obeys
standard serial asynchronous data formats, but
uses zero to five volts CMOS logic levels. It can
be described as CMOS level RS-232. The TxD
output circuit is shown in the figure below. It
will drive TTL, LSTTL, CMOS, HC, and HCT
inputs.
Note: If the part is purchased with stripped and
tinned wires, or if the connector is removed, the
ground and shield wires must be connected
together for proper operation.
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