Toshiba Strata DK 280 Installation Manual page 862

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PEKU does. The PESU is also used with older
Strata systems.
[PhDN]: Phantom Directory Number.
PIOU: Option Interface Unit-An optional printed
circuit board (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.
PBTCl A-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-9: 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, 280Admin 280Backup
personal computer (PC), SMIS personal computer
or Open Architecture personal computer.
Note:
PPTCS is 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 ma/e DB25.
PSTU2: Standard Telephone Interface Unit-An
optional printed circuit board (PCB) 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 19OV peak-to-peak or 130V peak-to-peak. The
PSTU2 is also used with older Strata systems.
RAM: Random Access Memory-Refers to the type of
system memory that holds individual system
configuration and feature programming. RAM is
read/write memory, and can be easily revised in
programming.
RATU: Attendant Console Interface Unit--'Optional
printed circuit board (PCB) that can support up to
four attendant consoles and/or PC attendant
consoles.
RBDB: Battery Distribution Box-Interface used to
connect reserve power batteries to systems with
three or more cabinets (also provides six
RBTCl A-1.5M cables to connect RBDB to cabinet
RPSU280 power supplies).
RBTCIA-2M: Battery cable that connects reserve
power batteries to RBDB battery distribution box
(3 or more cabinet installations).
RCCB: Conduit Connection Box-Device required for
floor-mounted systems with three or more
cabinets to connect AC power and reserve power
battery cabling to the system. Cabling from the AC
power source and from the reserve power battery
source can only be installed by a licensed
electrician.
RCIWRCIS: Four-circuit plug-in PCB/four-circuit
piggy-back PCB, each of which receives and
decodes FSK Caller ID (CLID or CND) information
from the Central Office ground or loops Caller ID
lines. Each RCIU/RCIS circuit works in
conjunction with a DK280 RGLWRCOWRCOS
line PCB circuit.
RCOS: Loop Start CO Line Interface Subassembly-
Optional subassembly that attaches to the RCOJJ
PCB to provide four additional CO analog line
circuits to the PCB. Supports Caller ID when used
with RCIWRCIS circuits.
RCOU: CO Line Interface Unit-An optional printed
circuit board (PCB) that provides the system with
four loop start CO lines. An optional RCOS
subassembly can be attached to the RCOU for
four more loop start analog CO lines. Supports
Caller ID when used with RCIWRCIS circuits.
RCTU: Common Control Unit-The system's
controller printed circuit board (PCB) that contains
the system's main
microprocessor and
microprocessor bus, ROM, RAM, time switch
logic, busy tone detectors, system tones and
MOH/BGM Interface. RCTUs include: RCTUAl,
RCTUBl, RCTUCl/ RCTUDl for DK280 Release
1, RCTUB2 and RCTU Cl/D2 for Release 2, and
RCTUA3, RCUBA/BB, and RCTUC3/D3 for 280
Release 3. Each RCTU supports different station
CL-4 January 1996