Related Devices: CM8116-DDC, CM8132-DDC, CM8148-DDC, CM8148-10G-DDC
The CM8100 Console Manager can be ordered to suit AC or DC powered environments. The universal Dual AC (100~240V) models use IEC sockets and power cords with regional AC plugs (CM81XX). The Dual DC models (CM81XX-DDC) are supplied with dual removable screw terminal blocks which are normally wired into conductors from the DC plant.
The Dual DC model includes two internal “nominal 48V” DC-DC converters (1 & 2). Each DC power input has screw terminals that take the positive (+), negative (–) and ground conductors from the DC plant voltage feed directly as long as the voltage across them is in the range 40V~72V DC. As the CM81XX-DDC supports two DC inputs, separate DC feeds are wired to each input for high availability. The power supplies are redundant, if one feed fails, the other automatically supplies power. The screw terminals are at the rear face of the CM8100 and labelled E, -V, and +V.
To connect a chassis ground conductor, connect 'E' to the protective Earth of the required earthing point of the desired chassis or frame.
To initially connect DC power, select the 3 pin removable terminal block from the supplied kit, and referring to the device decal for pin-out order, screw in the stripped ground conductor wire first 'E', then screw in the stripped negative (-) conductor to '-V' and finally screw in the stripped positive (+) conductor to '+V' respectively. Plug the terminal block into the device and tighten the mounting screws.
Sometimes the + and – nature of DC plant power can be confusing depending on the DC power source, the -48V (negative terminal) might be marked with a minus (-) symbol, and the -48V return (positive terminal) might be marked with a positive (+) symbol.
When removing DC power from the unit for maintenance or redeployment, firstly disconnect the power from the power delivery device, then unscrew the terminal block from the CM8100 device and unplug the connector.
If you need to disassemble the wires from the connector, proceed to unscrew the '+V' conductor from the terminal block after that unscrew the '-V' conductor and finally the earth conductor 'E'.