Applications; Orbit Network Power Supply Requirements; Orbit Network Protection - Omega Engineering LDN-PS User Manual

7.0:

Applications

Orbit Network Power Supply Requirements

All Orbit Modules are designed to work from a supply
voltage of 4.75V to 5.25 Vdc. When power is applied to
a module its current consumption will cause a slight
voltage drop across cables. Care must be taken to
ensure that all modules have the right working voltage
applied.
This section is for guidance only. Since every application
is different, it is not possible to give precise information
that covers all installations.
Your original supplier will be able to provide further
advice, if required.
Note:
Throughout this manual the Orbit System is referred to as requring a 5V power supply. For any applications, actual
voltages or power supplies may be within the 4.75 to 5.25V range according to configuration. PSIM-AC and PSIM-DC
has a nominal 5.1V output no load voltage. This allows for voltage drops across cables when Orbit Modules are added.
LDN-PS

Orbit Network Protection

Each PSIM provides a high level of protection for an
Orbit Network. Protection for mis-connection, over
voltage and transients is provided.
If a transient or other over voltage occurs, the protection
circuits will short circuit (crow bar) the power supply. At
this time, the voltage levels to each Orbit Module will be
below the working limit. When the fault condition has
been removed, Orbit power must be removed and re-
applied to allow a full hardware reset to take place. A
software reset is not possible under these conditions.
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PSIM-AC PSIM-DC PSIM-5V
M-3340/1206