TCNM-ACBB1
Function
RX
TX
SGND
Auxiliary Interface Receive Data
Auxiliary Interface Transmit Data
Auxiliary Interface Reference
RX TX
Reference
USER INTERFACE
Figure 27. RS232 Auxiliary Interface Connections
Note: Do not connect the Auxiliary Interface to the TCNM-ACBB1 spring clamp connectors and the 9-pin
connector simultaneously.
3.7.6 Inputs
There are two opto-isolated polarity insensitive inputs available on the reader: Input 1 (External Trigger) and Input 2, a
generic input.
The External Trigger can be used in One Shot Mode or in Phase Mode. Its main functions are:
• Acquisition trigger in One Shot Mode
• Reading phase-ON/reading phase-OFF command in Phase Mode
The main functions of the general purpose Input 2 are:
• Second external trigger in Phase Mode
• Match code storage command when the Match Code option is enabled
The electrical features of both inputs are:
V
AB
= 30 V dc maximum
I
IN
= 10 mA (reader) + 12 mA (TCNM-ACBB1) maximum
The active state of these inputs are selected in software.
An anti-disturbance filter, by default, is implemented in software on both inputs. The value can be changed through the
software parameter Debounce Filter. See the Help On Line page of the Reading Phase step (Inputs) in Barcode Manager for
further details on these parameters.
These inputs are opto-isolated and can be driven by both NPN and PNP type commands.
Note: Polarity insensitive inputs assure full functionality even if pins A and B are exchanged.
The connections are indicated in the following diagrams:
ABR 7000 Series Barcode Reader
www.bannerengineering.com - Tel: + 1 888 373 6767
29