Alpha Technologies FlexPoint AX Series - Manual (Page 32)

32 010-318-C0-007, Rev. G
7. Glossary
BBPS — Battery Backup Power Supply
Provides 12Vdc power to network equipment. Steps down the 48Vdc input voltage from the OPS
(ONT Power Supply) to 12 Vdc, or in the event of loss of line power, by the 7.2Ah battery.
Battery Module
Available in two sizes, houses either a 7.2Ah battery or 17Ah battery.
Blanking Plate
Located at base of power-ring, and is easily removed to facilitate installation of power-ring converter
(PRC). Shipped with power-ring, but also available separately.
CPE — Customer Premise Equipment
Communications equipment (i.e., DSL Modem, cable TV set-top boxes) located on the customer's
premises.
FTTH — Fiber to the Home
A fi ber optic architecture in which deployment of fi ber optic cable extends to the customer's home.
HC — Home Converter
An indoor version of the power-ring converter. Plugs into standard 120Vac outlet and converts the
AC voltage to a nominal 12Vdc. This voltage is supplied to either an indoor or outdoor battery box.
MDU — Multiple Dwelling Unit. Sometimes referred to as MTU (Multiple Tenant Unit)
Building with more than one residence or business.
NIU — Network Interface Unit. May also be referred to as an NID (Network Interface Device)
A device that performs interface functions, to and from a network. A device used primarily within a
local area network (LAN) to allow a number of independent devices to communicate with each other.
ONT — Optical Network Terminal
Provides optical-electrical (O-E) and electrical-optical (E-O) signal conversion. Typically found at
subscriber's end of a Passive Optical Network (PON).
ONU — Optical Network Unit
A form of access node that converts optical signals transmitted via twisted pair wiring into electrical
signals to individual subscribers. Enables large amounts of bandwidth to be delivered to areas
beyond electrical range of a central transmission offi ce.
OPS — ONT Power Supply
Plugs into standard AC outlet and converts 120Vac to 48Vdc. The 48Vdc output voltage is supplied
to the BBPS via low-voltage 24-gauge wires.
PRC — Power Ring Converter
A modular component which plugs into the base of the power-ring and converts 240Vac at the
meter to a nominal 12Vdc.
ROHS — Restriction on Hazardous Substances
EU Directive 2002/95/EC Level 5 of 6
UPS — Uninterruptible Power Supply
Provides battery back up power to the load in the event of loss of line voltage.