Two new patients inbound :) Scott Eagle Attack firefighting cameras

[Bill W]

Which 'Micro-IR' core do you have ?

The 200/205 is RS422.  It had a 20 and an 80 way connector
Image PIC00010 below


The 500 is RS485 and had a 30 way connector - as per the brochure in the thread above and
image PIC1



regards
Bill

[ArsenioDev]

Mine is the 200/205!

Is there an easier way to feed it power and enable it too? I'm using the power board from the Scott imager and want somethin a bit cleaner

[Bill W]

You could just bypass the Scott board.

For the 205:
20 way connector
Harwin M80-8662022, 20 pin, 2 row thru hole, 0.1" x 0.05"
Pins 1-3 are +ve, pins 4-6 are -ve battery supply.

Pins 7-9 are 'external +ve' and 10-13 'external -ve
There are a couple of 'switch' signals on there too, but I cannot find out what they did.  Suspect they switched on or off allowing external power to stay live.

The image below is a 205 installed on an Argus 3 chassis, showing power is only connected to pins 1/2 & 5/6.  I doubt there was anything else on that tiny PCB, but if you get trouble I can go and look harder.  I seem not to have the design file either.
The spec says OK between 4V - 9V, and as usual at this era it takes somewhere around 8W until the peltier settles, then about 5W.
Argus3 was 5 x NiMH cells.

The 80 way is all signals, and annoyingly the analogue video only comes out on that one. 
I noted that if not terminated, you will not get a video signal.

regards
Bill

[Wendy_Preston]

20 way connector
Harwin M80-8662022, 20 pin, 2 row thru hole, 0.1" x 0.05"

Hi all, just to help a little bit with the Harwin male connector, the product page for M20-8662022 has dims and specs. This one is not RoHS compliant, if you need a compliant version look at M80-8512042 instead. Availability is also better on the RoHS compliant item too.

Looks like this is mated to the female vertical PCB connector, which would be M80-8872001 for the Non-RoHS version and M80-8502042 for RoHS. BTW, RoHS mates fine with Non-RoHS, but again the availability is better for the RoHS item.

There are also mating female connectors in cable connection styles, just go to the product pages for the male connector and scroll down to "Related Products", and click on Mating.

Hope that helps somebody! Wendy 

[CJay]

Hope that helps somebody! Wendy 

Completely unrelated to the thread but I *love* that Harwin have taken this step and are being so helpful.

Right, back to watching Fraser work his wizardry and look on in envy at the gadgets.

[ArsenioDev]

Oh it's great news that the bulky power board can be bypassed. There is another board though, it has a Xilinx CPLD(?), an Atmega avr and some other random stuff, without it connected the core WILL NOT start, trying to figure that one out, looks to also have fed the display in the scott IR cam housing originally.

[Bill W]

OK, I've taken it apart and looked harder 

As I said there are power control lines on that 20 way Harwin M80 connection to the core, and while I do not seem to have any explanation of how to use them the adaptor PCB has joined pins 17 and 19. 

Your description sounds like the extra PCB is providing button control of power there.
A guess but maybe a low current enable of some sort ?
Otherwise a bit pointless having 3 in parallel for each power line.  Also not obvious where they go, as the tracks are buried inside the multilayer PCB



Bill