Grass Valley Trinix v.2.4.1 - Manual (Page 106)

Installation
106 Planning and Installation Manual
Simultaneous AC and DC Applications
It is possible to connect both AC and DC power sources as part of a
system redundancy scheme. In this case, refer to the AC and DC notes
above. RP-33500 jumper JN1 should be set to “AC.”
Table 16. DV-33512 DC power cord pinouts.
Power supply connector Cable description Main chassis connector
(Ground) Yellow/green (Ground)
Plain black
DC Out + (left) 1 (red) DC In + (left)
DC Out + (right) 2 (blue) DC In + (right)
DC Out - (left) 3 (white) DC In - (left)
DC Out - (right) 4 (yellow) DC In - (right)