Comtech EF Data CRS-400 - Manual (Page 44)

CRS-400 1:8 Redundancy Switch Revision 0
Installation and Setup MN/CRS400.IOM
28
2.11 A
PPLYING
P
OWER TO THE
S
WITCH
Note: Each CRS-400 is shipped with two power supplies, and it is recommended that both be
used for maximum reliability.
With the terrestrial cabling complete and the Mods/Demods powered on, but the IF ports
still unconnected, applying power to the CRS-400 is the next procedure. The auto-sensing
AC power supplies do not require any adjustments.
1 Plug in the supplied line cords.
2 Turn on the switches on the rear panel.
The switch should show a green Unit Status.
The IEC line input connector for each Power Supply Module contains the ON/OFF
switch for that module. It is also fitted with two fuses, one each for line and neutral
connections (or L1, L2, where appropriate). These are contained within the body of the
connector, behind a small plastic flap.
For 115/230 volt AC operation, use T1A fuses, (slow-blow) 20mm fuses.
WARNING
For continued operator safety, always replace the fuses with the correct type and
rating.
2.11.1 S
INGLE
P
OWER
S
UPPLY
O
PERATION
(T
EST
)
If only one power supply module is used, mask the fault for the unused power supply as
follows:
1 Go to the CONFIG, OPTIONS, MASKS, SW-ALARMS menu.
2 Select the unused power supply.
The switch is now ready for the next procedure, Configuring the Switch.