So, TTT, if I had an ACS set up in a 5 slot carrier like this:
400 | 400 | ACS | 400 | 308
I would have lines 01, 02, 03 and extensions 10 - 17 on the ACS,
Lines 04 05 06 07 on the 1st 400,
Lines 08 09 10 11 on the second 400,
Lines 12 13 14 15 on the third 400,
and then Lines 16 17 18 and extentions 36 - 43 on the 308,
since extensions 18 - 23 are taken up by, but are not accessible by the first 400,
extensions 24 - 29 are taken up by, but are not accessible by the second 400,
extentions 30 - 35 are taken up by, but are not accessible by the third 400?
I suspect that 400 modules have similar placement rules to VM modules whereby ETR modules (206's, 308's, 012's, etc.) are placed to the left in a 5 slot carrier, VM modules are placed to the right (PMVS, PMR, etc), and CO modules (200's, 400's, etc) are placed between them.
How close am I?
--Dan