Tiptop Powered Bus - Manual (Page 11)

TM
Chapter 5
Choosing The Right Power Socket, On/Off Switch,
Wires & Connection Type For Your Case.
Do I Need A Fuse?
Not with the Zeus System. The ZEUS Series Powered Bus Board comes
equipped with two (2) DC1200 switching regulators with an internal heat sink
and built-in short circuit protection. The short circuit protection is made
possible by the use of a Thermal Fuse. This fuse senses heat from a short,
which in turn makes the fuse rise, disconnecting from the output and
reconnect repeatedly(the cycle takes a few milliseconds to complete) until the
short is fixed.
The wiring can be done in two ways; either by flat terminal or screw
terminal connections. In either case, we recommend that you use 18AWG wire
for all connections through-out your system. The two connections between the
power supply and the Power Bus Board is the Positive Voltage IN and GND.
The four connections from the Powered Bus Board to the Passive Bus Board
are +12V, -12V, GND, and VR. (VR is the positive incoming voltage from the
external power supplies distributed to the Passive Bus Boards to power the on
board 5V regulators)
The flat terminal connections are the more professional choice for wiring
up your case. They require a crimper to attach the male contacts to the wires.
They have a wide, flat contact surface for better connections from the power
supply to the board. The flat terminal connectors are mostly on the underside
of both the Powered and Passive Bus Boards with exception to the Voltage In,
GND, and Voltage Out connections. We designed them this way so that the
wiring can be done cleanly and the connections stay out of sight for less visual
confusion when dealing with module connections to the boards.
The screw terminal connections can be done without additional flat
terminal male connectors on the end of your wires. This is an easier process
for connection boards when you don’t have crimpers handy.
(Continued...)
ZEUS Series Powered & Passive Bus Boards