MAE-East still no generator

Ok, I am not opening the GraybaR Power & Protection catalog.....

Page 12-31 Square D Company

Modle# Power Raiting Input Output Dimensions
6154-02 500 VA -48 VDC 120/220/230/240 VAC 7x17x15
6114-02 1 kVA -48 VDC 120/220/230/240 VAC 7x17x15
6115-02 2 kVA -48 VDC 120/220/230/240 VAC 17.5x17x15
6224-02 3 kVA -48 VDC 120/220/230/240 VAC 17.5x17x15

Nathan Stratton CEO, NetRail, Inc. Tracking the future today!

They told me the above would only work with "negative-ground" power,
and that it specifically would not work with telco -48vdc which was
configured as positive-ground.