InCoax D2501
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Confidential under NDA
1
Abbreviations, Definitions, and Notes
1.1
Abbreviations
The abbreviations that are used in this document are defined in
Table 1
.
Table 1
—
Abbreviations.
Abbreviation
Description
CATV
Cable TV.
CE
CE marking is a certification mark that indicates conformity with health, safety, and
environmental protection standards for products sold within the European Economic Area.
CPE
Customer-Premises Equipment or Customer-Provided Equipment.
C-VLAN
Customer VLAN is the VLAN that the customer uses or sees (the inner tag). C-VLAN is the VLAN
tag the customer is using on their own devices. (See QinQ.)
DHCP
Dynamic Host Configuration Protocol is an automatic configuration protocol used to
automatically assign IP addresses to devices on a TCP/IP network.
DPU
Data Processing Unit; often referred to as an Access Node or Control Unit.
EMC
Electro Magnetic Compatibility.
FCC
The Federal Communications Commission is an independent agency of the United States
government created by statute to regulate interstate communications by radio, television, wire,
satellite, and cable.
IGMP
Internet Group Management Protocol is a protocol used to establish multicast group
membership.
MAC Address
Media Access Control address is a unique identifier assigned to a Network Interface DPU (NIC)
for communications at the data link layer of a network segment. MAC addresses are used as a
network address for most IEEE 802 network technologies, including Ethernet, WiFi, and
Bluetooth.
MGMT
Denotes the Management port on the
DPU
.
OFDM
Orthogonal Frequency-Division Multiplexing is a method of encoding digital data on multiple
carrier frequencies.
PHY
Physical Layer of the OSI model.
PPPoE
Point-to-Point Protocol over Ethernet is a network protocol for encapsulating PPP frames inside
Ethernet frames.
PON
Passive Optical Network with its variants XGS-PON, GPON and EPON.
QAM
Quadrature Amplitude Modulation is the name of a family of digital modulation methods and a
related family of analog modulation methods widely used in modern telecommunications to
transmit information.
QinQ
An Ethernet networking standard informally known as QinQ, was incorporated into the base
IEEE 802.1Q standard in 2011. The IEEE 802.1Q technology improves the utilization of VLANs by
adding another IEEE 802.1Q tag to tagged packets. (See C-VLAN and S-VLAN.) See reference
{a}
.
QoS
Quality of Service is the ability to provide different priority to different applications, users, or
data flows, or to guarantee a certain level of performance to a data flow.
QPSK
Quadrature Phase-Shift Keying.
RoHS
Restriction of Hazardous Substances. This is a directive on the restriction of the use of certain
hazardous substances in electrical and electronic equipment. See reference
{b}
.
SerDes
Serializer/Deserializer is a pair of functional blocks commonly used in high-speed
communications to compensate for limited input/output.
SFP/SFP+
Small Form factor Pluggable transceiver. SFP ≤ 1
Gbps
and SFP+/Enhanced ≤ 10
Gbps.
SOAP
Simple Object Access Protocol is a protocol for exchanging structured information.
S-VLAN
Service VLAN is the VLAN that the service provider network sees (the outer Q-tag). S-VLAN is the
VLAN the service provider puts the entire customer traffic in. (See QinQ.)
TCP/IP
Transmission Control Protocol/Internet Protocol is the architecture for data communication over
networks.
TDD
Time Division Duplex is the topology adopted to make communication between two wireless
devices at one frequency but with two different time instants.
