RadioFrame Networks Inc DH2 User Manual
RadioFrame System
Appendix A: Glossary
RFN_3.1 Beta
139
Acronym
Term
Description
NCU
Network Chassis Unit
The central network processing unit for the RFS. Also central
management entity for managing configuration and User
Information.
management entity for managing configuration and User
Information.
NPC
Network Processing
Cards
Interface to the RLIC for the bi-directional transfer of voice I
and Q samples to/from RFUs.
and Q samples to/from RFUs.
PDU
Power Distribution Unit
The panel used for distributing power to the units within the
main rack.
main rack.
PERTM
Powered Ethernet Rear
Transition Module
Located in the ACU, provides power, clock, and data to the
RFUs.
RFUs.
RB
RadioBlade
Provides the airlink interface for the iDEN standard.
RFN
RadioFrame Networks
Equipment designer and manufacturer of RFS equipment.
RFS
RadioFrame System
Digital Communication System for indoor wireless device
users. The RFS consists of several components: NCU, ACU,
RFUs and iDEN RadioBlades.
users. The RFS consists of several components: NCU, ACU,
RFUs and iDEN RadioBlades.
RFU
RadioFrame Unit
RF front end for each of the implemented air interface to the
User equipment and connects to ACU on the other end.
User equipment and connects to ACU on the other end.
RFU BP
RadioFrame Unit - Back
Plane
Facilitates High speed intermodule communication between
RFU components and between RFU and ACU.
RFU components and between RFU and ACU.
RIC
RadioFrame Interface
Card
Provide the Ethernet switch fabric to route packets to/from
ACUs, RFUs and external IP networks. Also will host a micro-P
(MPC-8240) as primary controller to APCs.
ACUs, RFUs and external IP networks. Also will host a micro-P
(MPC-8240) as primary controller to APCs.
RLIC
RadioFrame LAN
Interface Card
Provide the Ethernet switch fabric to route packets to/from
ACUs. Also hosts a micro-P serving as primary controller of
NPCs.
ACUs. Also hosts a micro-P serving as primary controller of
NPCs.
RSSI
Received Signal
Strength Indication
Strength of the received call signal, in dBm.
SELV
Safety Extra-Low
Voltage
A secondary electrical circuit designed so that under normal
and signal fault conditions, its voltages do not exceed a safe-
value.
and signal fault conditions, its voltages do not exceed a safe-
value.
SPAM
Signal Processing Array
Module
A connectorized card which plugs into an APC or NPC and
provides the digital signal processing resources.
provides the digital signal processing resources.
SQE
Signal Quality Estimate
An estimate of signal quality, based on the received signal
strength and quality.
strength and quality.
T1
Digital Transmission
Rate 1
A North American leased-line connection capable of carrying
1.544 megabits of data per second (Mbps). T-1 lines are
commonly used to connect networks, ISPs and others to the
Internet.
1.544 megabits of data per second (Mbps). T-1 lines are
commonly used to connect networks, ISPs and others to the
Internet.
T1/E1
An E-1 line is the European equivalent to the North American
T-1. However, an E-1 line carries information at the rate of
2.048 Mbps instead of the 1.544 Mbps of a T-1.
T-1. However, an E-1 line carries information at the rate of
2.048 Mbps instead of the 1.544 Mbps of a T-1.
T568B
Wiring standard for RadioFrame System CAT-5 cables.
Denotes a specific order of the CAT 5 wires leading into the
RJ-45 connector.
Denotes a specific order of the CAT 5 wires leading into the
RJ-45 connector.
URU
Universal Repeater Unit
Repeats signal and timing and can also provide power to an
RFU. Extends distance between RFS components from 100
meters to 300 meters.
RFU. Extends distance between RFS components from 100
meters to 300 meters.