Ross ACO-4400A, User Manual, Page: 37 / 112

ACO-4400A User Manual (Iss. 03) Start-up • 3–3
Functional Check Procedure and First Time Operation
These procedures will guide you through the steps required to check the operation of the
ACO-4400A. The most common scenarios will be explored to enable the user to familiarize
themselves with the operation of the unit. Although some steps are included which suggest
cycling through menu options in order to check operation, this is not mandatory - a simple check
for presence or absence of a signal will suffice. Full details regarding the options available in each
of the menus are described in the chapter “
DashBoard Menu System ” on page 6-1 of this
manual. The scenarios to be explored are:
1. Initial Power-Up
2. Initial Configuration
3. Normal Operation (no fault)
4. Loss and Restoration of a Primary Signal
5. Loss and Restoration of a Backup Signal
6. Loss and Restoration of Power
Only one channel will be considered here to avoid confusion. To check the whole unit, repeat this
procedure for each of the remaining channels, remembering to leave signals connected to
previously checked channels.
Because the unmonitored channels (on the 30-pin Molex® connectors) are secondary to the BNC
channels, no specific details are listed in this procedure regarding their function. Simply connect
suitable signals to the relevant connector pins, and monitor the signal changeovers happening at
the same time as the BNC channels listed in the procedure below.