Ordered and received two new 40x2 for a backup chip for my home security system. Got out the bread boarding box and hooked up the power leads (pins 11/12 & 31/32) +5 and Gnd respectively and put a 4.7k res on pin 1. Then connected the AXE027 cable.
Flipped the swt, hit the program button and.. NADA. The computer could not find anything hooked up the Com4/AXE027.
Replaced the 40x2 with an 08m2, 14m2, 28m2 and a 28x1. All worked just fine.
Current draw with the 40x2 was about 4 millamps. Tried the other one, same results.
I must be missing something. Hard to believe Anderson sent me a couple of bad chips...
Any thoughts?
Flipped the swt, hit the program button and.. NADA. The computer could not find anything hooked up the Com4/AXE027.
Replaced the 40x2 with an 08m2, 14m2, 28m2 and a 28x1. All worked just fine.
Current draw with the 40x2 was about 4 millamps. Tried the other one, same results.
I must be missing something. Hard to believe Anderson sent me a couple of bad chips...
Any thoughts?