Omnia 4.5 Use and Installation Guide – Version 1.00a
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Rear Panel Expansion Card Slots
The Omnia-4.5fm also contains a second PC Memory Card that contains the software for the Front Panel. This card
has been pre-installed at the factory and is located under the top cover on the right-hand side of the Front Panel circuit
board. Please make sure the AC power is off and disconnected from the unit before removing the top cover and
removing or replacing the card.
Important Note 1: The PC Cards used in the Omnia-4.5fm are not generic PCMCIA cards that can be bought in any
local computer store. They are cards that are specified by Omnia specifically for this product. If you need a backup
card, please contact Omnia Customer Support to purchase an additional card. Inserting a card of unknown origin risks
damaging the Omnia or the cards, and doing so will void your warranty!
Important Note 2: If you wish to operate the Omnia-4.5fm using a PCMCIA type modem, you must use the optional
modem card from Omnia. No other modem cards are approved for use at this time. We cannot assume correct
operation of any other modem card, nor can we provide support for it. Typically any external Hayes compatible
modem may be connected to the rear-panel serial port. See chapter 6 for more details on the Modem and the Remote
Control Software.
Note: The rear panel PCMCIA Memory Card must remain in the top slot unless you are prompted by the system to
remove it. Randomly removing the PC Card without system instruction may cause unpredictable operation and PC
Card data damage.
AC Environment
The Omnia-4.5fm is microcomputer-based. Therefore, it requires the same clean AC environment as any computer
system. Even though the unit has quite robust internal AC input transient suppression, we recommend that external
transient suppressers/voltage regulation or an Uninterruptible Power Supply (UPS) be employed as well. This is
especially recommended when installing the processor at a transmitter site. Here, heavy transients on power lines,
caused by events from normal load switching to lightning strikes, have been known to wreak havoc with data in
computer systems. This is another reason we ask that you give your AC environment thorough consideration before
plugging in your Omnia4.5-fm unit.
