1.4
Definitions
Accessory: any device, not itself directly providing a telecommunications function, which is plug connected to the premises wiring.
BT jackpoint: any jackpoint which mates with a plug to BS 6312.
Customer premises equipment (CPE): any telecommunications terminal equipment connected to the customer's wiring.
Daisy-chain wiring: a common form of wiring where a cable to one jackpoint is connected to another cable to the next jackpoint.
Demarcation point (or network demarcation point): the point at which the customer's wiring is connected to the network lead-in cable.
Extension jackpoints: see "Secondary"
External Terminating Point (ETP): an external box, in which the lead-in cable is connected to the internal building wiring. Also (incorrectly) known as External Test Point. The demarcation point, when provided.
Hardware (or line hardware): any fixed wired device other than CPE.
IDC: Insulation Displacement Connector, commonly used to terminate wiring at hardware.
Jackpoint: any type of outlet used for plug-connecting CPE.
Lead-in cable: the Telecom owned cable used from the street to the customer's premises.
Line grabbing: a function of series CPE which disconnects other wiring and CPE from the line to either terminate or initiate a call.
Master jackpoint: the earlier standard 3-wire jackpoint incorporating the electrical components for the conversion of the line to three-wire operation within the premises.
May: refers to matters which are optional.
Pair: any set of two wires, which are usually twisted in a cable, used to provide a circuit.
Secondary jackpoint: the earlier standard 3-wire jackpoint used in conjunction with a master jackpoint. Also called an "extension" or "slave" jackpoint.
Series CPE: any CPE connected in the path between other CPE and the network.
Shall: identifies mandatory requirements for compliance.
Should: refers to practices which are recommended.
Socket: another name for "jackpoint" or "telecommunications outlet".
SOHO (Small Office/Home Office) cabling: an optional cabling standard, typically used for those installations requiring additional flexibility for voice and data services, standardised in AS/NZS 3086.
Star wiring: an arrangement whereby each jackpoint is separately cabled to a central point, where cross-connect facilities may be provided.
Tee connection: a third connection also made at a daisy-chain point.
Telecommunications Outlet (TO): the international term to describe any type of socket or jackpoint into which terminal equipment may be connected.
Telepermitted: CPE, hardware or cable marked with a Telecom "Telepermit" label to indicate that it complies with Telecom specifications.
Three-wire (3-wire): the legacy system of BT jackpoint wiring, whereby a Master jackpoint incorporates a shared capacitor to derive a third wire for ringing to all jackpoints.
Two-wire (2-wire): the present standard BT jackpoint system where one pair interconnects all jackpoints, each of which incorporates a capacitor to ring older 3-wire connected CPE.
Wiring (premises wiring): all cable and directly connected hardware on the customer's side of the demarcation point.

1.5 Overview of Acceptable Wiring Options
1.5.1 Installation Options Acceptable to Telecom
New installation, and extension to existing installation options acceptable to Telecom are indicated in Table 1 below together with a reference to the relevant section of this code:
TABLE 1