→ B, C → D, E → H, I→ M, N → P, Q → Z

CAT5
Category 5 UTP cable – standard Ethernet cable

CDD
Contractual Delivery Date

CDN
Content Delivery Network or Canadian Dollars

CEM
Contract Equipment Manufacturer

CEO
Chief Executive Officer (same as Managing Director)

CFO
Chief Financial Officer

CIO
Chief Information technology Officer

CN
Convergence Node

CO
Central Office

Co-mingling
The provision of space and facilities for the CP’s LLU equipment.

CP
Communications Provider (e.g.: BT, Virgin, BSkyB, etc.)

CPC
Capital Pool Company (on the TSX Venture Exchange)

CPD
Customer’s Preferred Date – preferred date of service activation

CRTC
Canadian Radio & Telecommunications Commission – Canadian regulator

CSP
Customer Service Plan

CTO
Chief Technical Officer

DC
Direct Current – as opposed to Alternating Current (AC)

• DC8-4kW: DC power option for B-Buss3 – 4kW
• DC8-8kW: DC power option for B-Buss7 – 8kW – comes in as 8.8kW AC to the rectifier

DDR
Double Data Rate Memory

DDR2
Double Data Rate – version 2: not compatible with DDR

Distant Location
The provision of an external tie cable between the MDF and a street cabinet or premises owned by a CP outside of the exchange. Basically this is an ISP building somewhere near an Openreach Exchange.

DLM
Dynamic Line Management – changing various parameters (impulse noise protection, capping & interleaving) of the DSL stream to achieve the best preformance.

DP
Distribution Point or Pedestal, little green box on the street corner, typically serves 2-25 houses.

DSL
Digital Subscriber Line – telephone line-based Internet access

DSLAM
Digital Subscriber Line Access Multiplexer

DSLR
DSL Rings® – the patent-pending technology of Genesis Technical Systems

DSM
Dynamic Spectrum Management

→ B, C → D, E → H, I→ M, N → P, Q → Z