Status And Diagnostics - Motorola ACE3600 RTU Owner's Manual

switch to control all power supplies simultaneously. Similarly, it is recommended to have a
single on/off for all 12V DO controls. If a DC power supply low tier is used on the expansion
frame, it does not include the 12V DO control, and it cannot provide power (in a daisy-chain
manner) to other expansion power supplies.
For guidelines on selecting the power supplies for a particular ACE3600 RTU with I/O
expansion, see the ACE3600 System Planner.
Power-up/Restart/Power-down
In a system where the power supply on the main frame feeds the I/O expansion frame,
powering up/restarting the main power supply will power-up/restart the expansion frames as
well. Powering down the main power supply will power-down the expansion I/Os as well.
In a system where the power supply on the I/O expansion frame is not connected to the main
frame, powering down or restarting the main power supply will not power-down the I/Os on
the expansion frame. However, these expansion I/Os may be reset after a period of time as a
result of this action. If the expansion frame loses communication with the main frame for more
than a certain number of seconds (configurable), it will restart. For more information, see the
Expansion Module chapter below. For information on configurable timeouts which may cause
the expansion module to restart, see the ACE3600 STS User Guide - Appendix A: Site
Configuration Parameters.

Status and Diagnostics

Status and diagnostics information can be retrieved from the expansion module, LAN switch,
and power supply using the STS Hardware Test utility and SW Diagnostics and Loggers, via
the CPU on the main frame. In a system where the expansion is not co-located with the main
frame, status and diagnostics information on the expansion components can be retrieved by
connecting directly to the expansion module. For more details, see the relevant chapter in this
manual and the Hardware Test section of the ACE3600 STS User Guide.
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I/O Expansion