User guide

Installing and Powering Up
2.16 Upgrading the MX8400 Multiplexer
The MX8400 Multiplexer software can be upgraded without removing the MX8400
from its installation. Version numbers of the codes stored in the MX8400 Multiplexer
are reported to nCompass Control.
Multiplexer functionality can be extended by the use of purchasable options. Please
refer to Chapter 3, Options and Upgrade.
2.17 Powering Up/Down
2.17.1 Before Powering Up
Before powering-up the MX8400 Multiplexer, check the following:
1. The equipment has been installed in a suitable location.
2. The power supply has been checked and a good earth provided.
3. The correct fuse type and rating has been fitted to both the equipment and the
AC supply cable (if appropriate).
2.17.2 Powering Up
Cautions!
If the enclosure fans are not rotating, isolate the equipment immediately from the
supply, then contact the manufacturer using the Customer Services information
given in the Preliminary Pages of this guide.
An automatic shutdown will occur if the Power Supply Unit overheats.
Figure 2.10 MX8400 Start up Routine
Power up
Power up
Self tests
MX8400
Runs
Using Stored
Config.
2/1553-FGC 101 1014 Uen B
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