Testing with Status LED
The LED provides a convenient means to test the AM43 in place. This is because the AM43 will always produce an output
whenever any of the five input channels (4 + talker) is stimulated. If valid data is detected, the LED will flash red, yellow, or
green as appropriate and data will be sent to the proper output.
If an input has invalid data, the error LED will light and an error sentence will be transmitted identifying the problem. If a
computer is connected to the AM43, the error message can be observed with a terminal program such as “Hyperterminal.”
These tests are simple, requiring no special equipment.
5. AM43 TECHNICAL SPECIFICATIONS
Supply Voltage 8-30 VDC
Supply Current 50 mA. max
Input Drive Voltage 2-14 V (Active State)
Input Impedance 1K Ohms (Min.)
OUTh Output drive 4V Differential (RS-422)
Output drive (OUT, TLK) 4V, 50 mA. (max)
INh/OUTh baud rate 4800 – 38,400 (selectable)
Size 3.5” x 2.4” x 0.9”
Weight 6 oz.
WARRANTY. NoLand Engineering, Inc., provides a two-year replacement warranty against manufacturing defects and
component faults. Inquiry for warranty replacement may be made directly to NoLand Engineering via phone, fax, or e-mail.
Include the model number and serial number of your unit with any inquiry.
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