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• If the buffer for the Configure dgram (in /usr/lib/systemd/system/tdetsim.service) is specified to be larger, it wins.  Otherwise it’s the Pebble buffer size.  The Pebble buffer size is derived from the tdetsim.service cfgSize, unless it’s overridden by the pebbleBufSize kwarg to the drp executable

XPM

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NEH Topology

Before:
https://docs.google.com/drawings/d/1IX8qFco1tY_HJFdK-UTUKaaP_ZYb3hr3EPJJQS65Ffk/edit?usp=sharing

Now:
https://docs.google.com/drawings/d/1clqPlpWZiohWoOaAN9_qr4o06H0OlCHBqAirVo9CXxo/edit?usp=sharing

Eventually:
https://docs.google.com/drawings/d/1alpt4nDkSdIxZRQdHMLxyvG5HsCrc7kImiwGUYAPHSE/edit?usp=sharing

Numbering

amc1 on left, amc0 on right
ports count 0-6 from right to left, matching labelling on xpm, but opposite the order in xpmpva which goes left to right
LEFTMOST PORT IS UNUSED (labelled 7 on panel)

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