#183 build differences

[Oddvar R]

Hi. I am building a #183 dumble. My problem is that I have one layout, but two different xtra versions of boards. On the PAB on the ODS# 183 there are two 22m resistors connected, but on the xtra it's not drawn in, but on the xtra board it says 22m resistors from NC to Com on both sets of contacts. As you can see on the green on the Com 1 and Com 2 and NC1 and NC 2 ar side by side, Question is, are the the same or is the layout different?

[pompeiisneaks]

No those are not identical
On the top one, they show Side one labeled with 1 (far side), and side two, (near side) labeled as 2 (of the relay)

so order of connections is first pin first side (com1) first pin second side (com2) second pin first side (NC1), second pin second side (nc2) third pin first side (NO1), third pin second side (NO2)

On the bottom one it's farside 1 (Com2) farside 2 (NC2) then nearside 1 (Com1), nearside 2 (com2) and then no pins for the last NO pins.

is that the question you're asking?

The more important part really is to ensure you wire them per the schematic's requirements.

~Phil

[martin manning]

The top picture is the "universal" PCB relay board pattern, where the PAB and OD boards are identical. The wiring differs from the layouts, but there is no problem with that, just make the same electrical connections.

[Oddvar R]

My concern was where to put the two 22m resistors?

[martin manning]

Notice in the lower picture only the Com and NC connections are used on each side of the relay, and the 22M are connected across those. It's the same on the upper board: Just connect a 22M from Com1 to NC1, and another from Com2 to NC2. Then, the two red wires can go on Com1 and NC1, and the two yellow wires on Com2 and NC2.

[Oddvar R]

Thanks.