ARX8-2400 ABACOM Technologies, Inc, ARX8-2400 Datasheet - Page 2

• Manufacturer Part Number: ARX8-2400
• Description: Intelligent Simplex Rs-232 Modules
• Manufacturer: ABACOM Technologies, Inc

Connection
Connect the modules to the host serial port via a straight through serial extension cable. This assumes that the se-
rial connector at the host is a 9 pin D type connector and the host is configured as DTE. If the host RS232 port is a
25 pin D type connector then a crossover connection is required for the data lines.
Once connected the modules may be powered up. The Green power LED’s will be on.
Communication Setup
The ATX8 and ARX8 host’s serial ports should be configured for 2400baud, 8 data bits, No parity, 1 Stop bit and
flow control set to None. This configuration allows for the ATX8 to transmit up to maximum of 8 bytes per transmis-
sion. For applications that require the transmission of more than 8 bytes, the ATX8 transmitters host serial port must
be configured as above, except flow control must be set to Hardware. This configuration allows for as many bytes to
be transmitted as required. The ATX8 will transmit the data in 8 byte packets.
Operation
The ATX8 automatically detects the start and end of a transmission. When transmitting, the amber LED of the ATX8
will be ON and the amber LED on the ARX8 will be ON indicating reception of valid data.
TEST Mode
The ATX8 includes a TEST mode jumper J1. For normal operation, the jumper is in position 1 & 2 and for TEST
mode the jumper is in position 2 &3. In this mode the ATX8 will continually transmit its internal 8 byte message to the
ARX8. The amber communications LED’s on the ATX8 and ARX8 will be ON. This mode is useful for diagnostics
purposes range tests, and optimal module position tests. No connection to a host is necessary in this mode, how-
ever if the ARX8 is connected to a PC terminal, the test message <ABACOM> will scroll the display.
Power Supply
The modules accept power supplies of between 7.5Vdc and 15Vdc. The ARX8 and ATX8 are supplied with 9V bat-
tery snap connectors for user convenience. However, if the modules are to be powered continuously for extended
periods, the user may consider using alternate power supplies such as dc wall adaptors.
The table below provides the typical current consumption of the ARX8 and ATX8. As indicated, power may be con-
served simply by removing the Power LED. This may be performed at the discretion of the user. Removing the
Power LED’s will not affect the normal operation of the modules.
Disclaimer:
Technical specifications are subject to change without notice. The information contained in this document is provided in good faith.
Whilst every effort has been made to ensure its accuracy, ABACOM Technologies do not assume responsibility for any errors or
omissions that may exist. ABACOM Technologies does not assume responsibility for any damage caused through misuse of their
products. ABACOM Technologies products are not recommended for applications where human life may be at risk.
ABACOM Technologies, Inc.
With Power LED
ARX8
ATX8
Without Power LED
ARX8
ATX8
•
383 Bering Ave • Etobicoke • ON • M8Z 3B1 • Tel [phone] • Fax [phone]
Standby Current
1.2mA
9mA
7mA
4mA
www.abacom-tech.com
Transmitting
12mA
5mA
Receiving
10mA
6mA