Toshiba Strata DK40 Programming Manual page 375

Term
PBTC
PBX
PCB
PCM
PCOU
PDKU2
[PDN]
PEKU
PEMU
PEPU
PIOU
PIOUS
PORT
PBTC1A-3M
Strata DK40 Programming Manual Spring 1999
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.
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.
Printed Circuit Board.
Pulse Code Modulation—A widely-used form of digital telephone switching.
Exchange Line Interface Unit—An optional PCB that provides the system with
four loop start Exchange lines.
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).
Primary Directory Number.
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.
E & M Tie Line Unit—An optional PCB that provides the system with support
for four E & M Type I tie lines.
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.
Option Interface Unit—An optional PCB that provides support and/or circuit
interface for optional hardware peripherals and upgrades.
The same as the PIOU, with some exceptions; most notably, the PIOUS has one
external paging interface zone, while the PIOU has four.
A term used to identify a station circuit or Exchange line circuit location.
Battery cable that connects reserve power batteries to cabinet TPSU16 power
supplies.
Definition
GL-5