Interlogix NS3550-8T-2S Installation Guide - Manual (Page 5)

5
Wiring the Power Input
The 6-contact terminal block connector on the rear panel of NS3550-8T-2S is used for two DC redundant powers inputs. Please
follow the steps below to insert the power wire.
1. Insert positive / negative DC power wires into contacts 1 and 2 for DC POWER 1, or 5 and 6 for DC POWER 2.
2. Tighten the wire-clamp screws to prevent the wires from loosening.
1 2 3 4 5 6
Power 1 Power 2
- + - +
The wire gauge for the terminal block should be in the range of between 12 ~ 24 AWG.