A (13 entries)

• Access
• Access Provider (AP)
• Active Circuit
• Alternate Route
• ANSI AMerican National Standards Institute
• Analog Signal
• ARO
• As-Built
• Asymmetic Digital Subscriber Line (ADSL)
• ATM Asynchronous Transer Mode
• Attenuation
• Audit Trail
• Authorization

B (21 entries)

• B-Channel Bearer Channel
• Backbone Cabling
• Backbone Network
• Backbone Wiring
• Balun
• Bandwidth
• BDKS Digital Telephone Interface Subassembly
• BKDU Digital Telephone Interface Unit for the Toshiba CTX670
• BGM Background Music
• BICSI Building Industry Consulting Service International
• Bit Error Rate (BER)
• Bit Rate
• Bit Stream
• BOMA
• Bond
• Break-Out
• BRI Basic Rate Interface
• Broadband
• Broadband Transmission
• Broadcast
• Bug

C (34 entries)

• Cabinet
• Cable Assembly
• Cable Support System
• Cable Tray (CT)
• Calibration
• Call Forwarding
• Camp Switch or PBX
• Capstan
• Carrier
• Category 3 (CAT 3)
• Category 5 (CAT 5)
• Category 5 (Enhanced) (CAT 5)
• Category 6 (CAT 6)
• Category 6 Augumented (CAT 6A)
• Centrex Central Office Exchange Service
• Circuit
• Client
• Cluster
• Clustered Star
• CO Central Office
• Coaxial Cable
• Conduit
• Conferencing
• Connecting Block
• Connector
• Contractor
• Converter
• Coupler
• Coupling
• CPA
• CPE Customer Premises Equipment
• Cross-Connect
• Customer Service Department
• Cutover

D (18 entries)

• D-Channel Data channel
• DACS Data Acquisition and Control System
• DADM Digital Add-On-Module
• Dark Fiber
• dB (Decibel)
• DDCB Digital Door Phone/Lock Control Unit
• DDSS Digital Direct Station Selection Console
• Dedicated Access
• Dedicated Line
• Demarcation Point
• Device As distinguished from ‘equipment’
• DID Direct Inward Dialing
• DKT
• Downtime
• Drop Wire
• DSL Digital Subscriber Line
• DSU Data Service Unit
• DTMF Dual Tone, Multi-Frequency

E (9 entries)

• EDI Electronic Data Interchange
• EDP Electric Distribution Panel
• EIA Electronic Industries Alliance
• E-Mail
• Encroachment
• Encroachment Permit
• Equipment As distinguished from “device”.
• Equipment Room
• Ethernet

F (6 entries)

• Facilities
• FCC
• Fiber Optics
• Firewall
• Flat Rate
• Frame Relay

G (3 entries)

• Gateway
• Gigabit
• Glitch

H (5 entries)

• Handset
• Hardwire
• Host Computer
• Hub In data communications
• Hunting

I (9 entries)

• Integrated T1
• Intercept
• Interconnect
• IP Address
• ISA
• ISDN Integrated Services Digital Network
• ISO International Standards Organization
• ISP
• IXC Interexchange carrier

J (4 entries)

• Jack
• J-Hook
• Job Site
• Jumper Wire

K (2 entries)

• Key Service Unit (KSU)
• Key System

L (11 entries)

• LAN Local Area Network
• Landline
• LATA Local Access and Transport Area
• LCD Liquid Crystal Display
• Leased Line
• LED Light Emitting Diode
• Line
• Load Balancing
• Long Distance
• Loop
• LTO

M (15 entries)

• MAC
• Mbps Megabits per Second.
• MDF Main Distribution Frame
• MDFB Door Phone Box
• MHz Megahertz
• MMJ Modified Modular Jack
• Modem
• MOH Music On Hold
• MPLS Multi Protocol Label Switching
• MTBF Mean Time Between Failures
• MTTR Mean Time To Repair
• Multilayer Switching (MLS)
• Multimeter
• Multiplex (MUX)
• Multiplexing (Muxing)

N (5 entries)

• Network
• NIC Network Interface Card
• NID Network Interface Device
• NIST
• NTF

O (5 entries)

• OEM Original Equipment Manufacturer
• Offset
• OSP Outside Plant
• Outage
• Outlet

P (25 entries)

• Packet
• Packet Filtering
• Packet Switching
• Patch Cord
• Patch Panel
• Patching
• PBX Private Branch Exchange
• Pedestal
• Peripheral Device
• Permanent Virtual Circuit (PVC)
• Phased Cutover
• Plenum
• Plenum Cable
• Plug
• POP Point-of-presence
• Port
• POTS Plain Old Telephone Service
• Premise
• Premises Wiring System
• PRI Primary Rate Interface
• Private Line
• Protocol
• Protocol Data Unit
• PUC – Public Utility Commission
• Punchdown

Q (2 entries)

• Quad Cable
• QoS Quality of Service – 1

R (15 entries)

• RAM-Random Access Memory
• RBOC
• RBSU ISDN Basic Rate Interface (BRI) Unit
• RCDD
• Real-Time
• Remote Access
• Return Loss
• RFB
• RFI
• RFP
• RFQ
• Ring
• Riser
• RJ Registered Jack
• Router

S (11 entries)

• Scalability
• Scope of Work
• Service Loop
• Server
• Shielded Pair
• Single Mode
• Sound Masking
• Splice
• Standards
• Structured Cabling
• Switch

T (14 entries)

• T&M
• T1
• T3
• TAG Technology Assurance Group
• TCP/IP Transmission Control Protocol/Internet Protocol.
• Telco
• Terminate
• TIA Telecommunications Industry Association
• TIN
• Token Ring
• Tone Dial
• Topology
• Tunneling
• Twisted Pair

U (4 entries)

• UL Underwriters Laboratories
• Universal Slot
• UPS Uninterruptible Power Supply
• UTP Unshielded Twisted Pair

V (6 entries)

• Variable Cost
• Variance
• Virtual Circuit
• Voice Mail
• VoIP
• VPN Virtual Private Network

W (8 entries)

• Wall Mount
• WAN Wide Area Network
• WAP Wireless Access Point
• Warranty
• WATS Wide Area Telecommunications Service
• Wi-Fi Wireless Fidelity
• Wire Management
• Workstation

X (0 entries)

Y (0 entries)

Z (0 entries)