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Glossary
PEPU ~ QSTU2
GL-6 Strata
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.
PESU Standard/Electronic Telephone Interface Unit—An optional PCB that provides the system
with a combination of two standard and four electronic telephone circuits. The standard
telephone circuits can support standard telephones and optional hardware peripherals, such
as voice mail devices and fax machines. Except for the electronic DSS console, the PESU
electronic telephone circuits can support the same stations and peripherals that the PEKU
does. The PESU is also used with older Strata systems.
[PhDN] Phantom Directory Number.
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 CO line circuit location.
PBTC1A-3M Battery cable that connects reserve power batteries to cabinet RPSU280 power supplies
(102 cabinet installations).
PPTC A Toshiba-supplied adapter—An adapter that is used to connect: an SMDR device, ASCII
maintenance terminal, or remote maintenance external modem.
PPTC A Toshiba-supplied adapter—An adapter that is used to connect: the modular SMDR, SMDI,
MIS for ACD, Open Architecture (OA), maintenance ports of the PIOU, PIOUS, RSSU, RSIU,
or RSIS to the DB-9 (PPTC-9) connector of a call accounting machine, DK Admin, DK
Backup personal computer (PC), SMIS personal computer or Open Architecture personal
computer.
PPTC-9 Designed to connect directly to the DB9 connector of PC COM ports, while PPTC connects
directly to an ASCII terminal female DB25, not a PC COM port male DB25.
PPTC-25F Used to connect a Call Center Viewer PC or SMIS PC to the RS-232 Strata DK424 MIS port
on the PIOU, PIOUS, RSIU, or RSSU.
PRI Primary Rate Interface.
PSTU2 Standard Telephone Interface Unit—An optional PCB (an older version of RSTU2) with a
built-in ring generator that provides interface for eight standard telephones or optional
hardware peripherals (voice mail devices, Background Music source, fax machines, etc.).
The PSTU2 has a square wave ring generator that can be set for 190V peak-to-peak or 130V
peak-to-peak. The PSTU2 is also used with older Strata systems.
PSTN Public Switched Telephone Network.
QCDU2 CO Line Digital Telephone Interface Unit (DK14)—Provides one CO line (loop start) circuit
and two digital telephone circuits on each PCB. The QCDU2 interfaces with digital
telephones, PDIU-DIs/PDIU-DI2s/RPCI-DI, ADMs connected to the telephones and PDIU-
DSs, but does not support a DDSS or DDCB console.
QKYS Auto Attendant Feature Key (DK14)—Provides built-in Auto Attendant software without
Program 03 assignments and installs directly onto the QRCU3 PCB.
QSTU2 Standard Telephone Interface Unit (DK14)—Provides two standard telephone circuits (ports)
and interfaces with standard telephones, Auto Attendant devices, separate BGM source
connections, voice mail machines, and facsimile machines.
Term Definition