Questions about NTP 179-400 racking / wiring

musika · Mar 5, 2016

I've got these limiters that I'd like to rack mount.

They are NTP 197-400 Type E.

The specs say use a broad type DIN connector for Type E. I'm not sure which type DIN this means.

Do these connectors have mating pins I could buy or do they only allow for direct solder? Also they say that the rows are connected, so does this mean I could stagger the wires that I solder (either row)?

I also see that it needs +/-24V... does the screen connect to the power supply (0V) ?

Can someone help?

musika · Mar 5, 2016

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musika · Mar 5, 2016

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musika · Mar 5, 2016

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mjrippe · Mar 5, 2016

The manual says 22-32VDC. This is NOT bipolar. Connect the 0V to -Vcc.

Connectors are available from https://www.vintagetools.de/Other/Connectors-Accessoirs/

musika · Mar 5, 2016

OK. Thanks.

+V at pin 29

0V at pin 31

N/C at pin 32 then?

mjrippe · Mar 5, 2016

I believe I tied 31+32 together.

musika · Mar 5, 2016

Did you per chance rewire the controls to the front panel? I've seen racked versions where they done this with new BCD switches.

mjrippe · Mar 5, 2016

I cut the front rack panel to fit the NTP faceplate, then used two rotary switches per channel for the two release time switches. I believe they offered the first 3 or 4 time constants of each as the really long times did not seem useful for my client.

musika · Mar 5, 2016

Many thanks for your input on this.... especially the voltage stuff as I was confused on that. After all that's most important. Sent an email to make sure I order the correct female connectors. My plan was to combine the hex switches for both channels and only use two on the front panel. I may rethink that now.