Specifications

FOM-40 Installation and Operation Manual Chapter 6 FOM-40/R Card
Power Supply 6-3
6.2 Power Supply
Power is supplied to the FOM-40/R card from the ASM-MN-214 power supply
through the chassis. FOM-40/R card has two fuses (F1 and F2), which protect the
entire system against power failure resulting from a short circuit in one card
(see Figure 6-1). The rating of the fuses is 1A, 250V, slow blow.
The ASM-MN-214 card cage can accept both AC or DC power supplies. LED
indicators located on the ASM-MN-214 front panel (see Figure 6-3) show activity
when the power supply is connected to the mains plug. The power supply
supports the full card cage with any combination of cards.
AC Supply
The AC power supply of the ASM-MN-214 is 100, 115, or 230 VAC, ±10%,
47 to 63 Hz.
DC Supply
The DC power supply is -48 VDC (-36 to -72 VDC) or 24 VDC (18 to 32 VDC). It
uses a DC/DC converter module to provide the power required for the cards.
Power Supply with Redundancy
This option provides two separate power supplies that operate together and share
the load of the whole card cage. If either of the power supplies fails, the other one
continues to supply power to the full card cage.
Two LED indicators show activity of each power supply. They both light when
mains power is provided.
Both AC and DC power supplies can be combined in the same cage.
Note