Nortel Networks BCM1000 manual Parallel port, Peripheral Component Interconnect PCI Slot, Pin-1

Glossary 265

Parallel port

A port that transfers data through multiple wires. Parallel ports normally use a 25-pin interface that transmits and receives data using a separate data line for every bit.

Peripheral Component Interconnect (PCI) Slot

Socket on the Business Communications Manager main printed-circuit board that connects to the Business Communications Manager cards.

Personal Speed Dial

Two-digit codes (71-94) that can be programmed on the set to dial external telephone numbers. You can access Personal Speed dial numbers only at the telephone on which they are programmed.

Pin-1

An indicator on the first pin on an electronic component. You use this indicator to help you correctly align the component when attaching or installing it.

Port

A connector on the Business Communications Manager that allows data exchange with other devices, such as a printer or mouse.

portable telephone

Typically a handset containing keypad, receiver and transmitter that communications using a radio link to a base station connected to the Business Communications Manager. Examples: Companion, DECT.

Primary Rate Interface (PRI)

An ISDN interface that uses 23 B-channels and a D-channel (23B+D).

Prime line

The line the system selects for your telephone when you lift the receiver, press the Handsfree/Mute button, or use an external dialing feature. Assign a Prime Line to a telephone under Line access in System DNs programming.

Priority Call

If you get a busy signal when you call a person in your office, you can interrupt that person for an urgent call. Enable this feature for a telephone under Capabilities in System DNs programming.

Private branch exchange (PBX)

A PBX is a telephone system within an enterprise that switches calls between enterprise users on local lines while allowing all users to share a certain number of external telephone lines. The main purpose of a PBX is to save the cost of requiring a line for each user to the telephone company central office since the PBX is owned and operated by the enterprise rather than the telephone company.

Installation and Maintenance Guide