Toshiba Strata AirLink DK40, Руководство по программированию

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Strata DK40 Programming Manual Spring 1999
GL-5
PBTC A Toshiba-supplied cable used to connect customer-supplied batteries to a
cabinet power supply in a one- or two-cabinet system for emergency reserve
power for the entire system.
PBX Private Branch Exchange—Industry-standard term which refers to a telephone
switch, usually on-premises, which serves an individual company, and is
connected to a public telephone exchange through the Exchange Line.
PCB Printed Circuit Board.
PCM Pulse Code Modulation—A widely-used form of digital telephone switching.
PCOU Exchange Line Interface Unit—An optional PCB that provides the system with
four loop start Exchange lines.
PDKU2 Digital Telephone Interface Unit—An optional PCB that provides the system
with eight digital telephone circuits. In addition to digital telephones, the
PDKU can support data interface units (stand-alone and integrated), a digital
DSS console (DDSS), RPCI, ADM, and a digital door phone/lock control unit
(DDCB).
[PDN] Primary Directory Number.
PEKU Electronic Telephone Interface Unit—An optional PCB that provides the
system with eight electronic telephone circuits, which can support electronic
telephones, a door phone/lock control unit (HDCB), an electronic DSS console
(HDSS), and VHOC.
PEMU E & M Tie Line Unit—An optional PCB that provides the system with support
for four E & M Type I tie lines.
PEPU External Page Interface Unit—An optional PCB that provides support and/or
circuit interface mainly for optional hardware peripherals and upgrades
associated with external paging functions.
PIOU Option Interface Unit—An optional PCB that provides support and/or circuit
interface for optional hardware peripherals and upgrades.
PIOUS The same as the PIOU, with some exceptions; most notably, the PIOUS has one
external paging interface zone, while the PIOU has four.
PORT A term used to identify a station circuit or Exchange line circuit location.
PBTC1A-3M Battery cable that connects reserve power batteries to cabinet TPSU16 power
supplies.
Term Definition