Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

							Glossary
PESU ~ QCDU2
Strata DK I&M 5/99GL-7
Glossary
PESUStandard/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.
PPTCA 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-9Designed 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-25FUsed 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.
PRIPrimary 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.
PSTNPublic Switched Telephone Network.
QCDU2CO 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.
Term Definition 
						

							GL-8Strata DK I&M 5/99
Glossary
QKYS ~ RCMS
QKYSAuto Attendant Feature Key (DK14)—Provides built-in Auto Attendant software 
without Program 03 assignments and installs directly onto the QRCU3 PCB.
QSTU2Standard 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.
QRCU2DTMF Receiver/ABR Tone Detector Unit (DK14)—Provides three circuits to 
receive DTMF tones (required for DISA and devices connected to QSTU2s), and 
three circuits to detect busy tone (required for the ABR feature).
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 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 RBTC1A-1.5M cables to 
connect RBDB to cabinet RPSU280 power supplies).
RBSUISDN Basic Rate Interface (BRI) Unit—Provides two circuits, each of which 
provide two simultaneous voice and/or data connections with a single interface. 
BRI uses the 2B+D transmission format which is defined as two 64-kbps bearer 
channels and one 16-kbps data (control channel). Available for DK424 with Release 
4.1.
RBSSISDN Basic Rate Interface (BRI) Subassembly—Attaches to the RBSU to provide 
two additional  BRI “U” circuits that can be used to connect to Network BRI lines 
and/or station-side connections only. Available for DK424 with Release 4.1.
RBTC1A-2M Battery cable that connects reserve power batteries to RBDB battery distribution 
box (3 or more cabinet installations).
RBUUISDN Basic Rate Interface (BRI) Unit—Provides two BRI “U” circuits. Each 
circuit provides two simultaneous voice and/or data connections with a single 
interface. BRI uses the 2B+D transmission format which is defined as two 64-kbps 
bearer channels and one 16-kbps data (control) channel. Available for DK424 with 
Release 4.2.
RBUSISDN Basic Rate Interface (BRI) Subassembly—Attaches to the RBUU to provide 
two additional BRI “U” circuits that can be used to connect to Network BRI lines 
and/or station-side connections only. An RBUU with the RBUS subassembly 
provides four BRI “U” circuits in one card slot. Available for DK424 with Release 
4.2.
RCMSEnhanced 911 (E911) CAMA Trunk Direct Subassembly—Enables the DK424 
(Release 4.0 and above) to connect to one or two CAMA trunks. Two RCMS PCBs 
enable connection to four CAMA trunks.
Term Definition 
						

							Glossary
RMCU ~ RGLU
Strata DK I&M 5/99GL-9
Glossary
RMCUEnhanced 911 (E911) CAMA Trunk Direct Interface—Enables connection from the 
DK424 (Release 4.0 and above) to E911 locator services without third-party 
equipment. The RMCU supports two subassemblies (RCMS) that provide a total of 
up to four ports.
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.
RCIU2/RCIS 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 
DK424 RGLU/RCOU/RCOS line PCB circuit.
RCOS Loop Start CO Line Interface Subassembly—Optional subassembly that attaches to 
the RCOU PCB to provide four additional CO analog line circuits to the PCB. 
Supports Caller ID when used with RCIU/RCIS circuits.
RCOU CO Line Interface Unit—An optional 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 RCIU/
RCIS circuits.
RCTU Common Control Unit—The system’s controller PCB that contains the systems 
main microprocessor and microprocessor bus, ROM, RAM, time switch logic, busy 
tone detectors, system tones and MOH/BGM Interface. RCTUs include: RCTUA, 
RCTUB, RCTUBA/BB, RCTUC/D, and RCTUE/F. Each RCTU supports different 
station and line capacities. The RCTU PCBs also provide interface for the optional 
RRCS PCB and RKYS key.
RDDU Direct Inward Dialing Interface Unit—Optional PCB that provides four analog 
Direct Inward Dialing line circuits. Supports ANI and DNIS.
RDSU Digital/Standard Telephone Interface Unit—Optional PCB that provides two 
standard telephone and four digital telephone circuits in its basic configuration. An 
RSTS can be attached to the RDSU for two additional standard telephone circuits.
RDTU T1/DS-1 Interface Unit—Optional PCB that provides up to 24-digital channels that 
can individually be assigned for loop start CO line, ground start CO line, E & M tie 
line, or DID line operation. Supports ANI and DNIS.
REMU E & M Tie Line Unit—An optional PCB that provides the system with support for 
four E & M Type I or Type II, Immediate or Wink Start tie lines. Supports ANI and 
DNIS.
RFIF Floor Mount Installation Kit—Kit that is used to floor mount systems.
RGLUAnalog Ground/Loop Start CO Line Interface Unit—Provides four CO line circuits 
that can be individually configured for loop start or ground start CO line operation. 
Supports Caller ID when used with RCIU/RCIS circuits.
Term Definition 
						

							GL-10Strata DK I&M 5/99
Glossary
RKYS ~ RSIS
RKYSFeature Key Upgrade—Subassembly that attaches to the common control unit to 
provide the system with optional features. There are four versions of the RKYS: the 
RKYS1, the RKYS2, the RKYS3 and the RKYS4, each of which provides a distinct 
set of features.
RMDS Remote Maintenance Modem Subassembly—A subassembly installed on the RSIU 
Optional Interface Unit that allows the system to be connected with a remote 
administration/maintenance terminal or DK Admin/DK Backup personal computer.
RPCI-DIComputer Data Interface Unit—Replaces the normal telephone base and provides 
all the functions of PDIU-D12. In addition, it can be switched to a second mode 
automatically and used with a Telephone Application Program Interface (TAPI) 
software application.
RPTUISDN Primary Rate Interface (PRI) Unit—Provides 1 data (control) channel and 23 
bearer channels.All B-channels appear and program as CO lines in the DK424 
system and can be individually configured for local service, FX, WATS, DID, tie, 
etc., service operation. Supported by the RCTUBA3/BB4, RCTUC3/D4 and 
RCTUE3/F4.
ROM Read Only Memory—Refers to the type of system memory that holds static 
software that comprises the mechanics of the features’ functions. ROM is only 
revised by Toshiba software engineers.
RPSB (1 and 2) Power Strip—Interface between cabinet power supplies and the commercial AC 
power source. The RPSB provides outlets for three power supplies. One RSPS is 
required for systems with three or four cabinets, two or three RSPSs for five- or six-
cabinet systems.
RPSU280 Cabinet Power Supply—Furnishes power to all of the stations and peripherals 
connected to the cabinet PCBs. Each Base and optional expansion cabinet has a 
separate power supply.
RRCS Dual-tone Multi-frequency Receiver—An optional upgrade to the system common 
control unit (RCTU) that provides Dual-tone Multi-Frequency (DTMF) receivers 
for system Direct Inward System Access (DISA) CO lines, E&M tie lines, DID, 
DNIS and ANI lines, Auto attendant announcement devices, remote change of call 
forward-external destination, DNIS external call routing, and stations and other 
peripherals that connect to standard telephone circuits. The RRCS comes in three 
models: the RRCS-4 (provides four DTMF receivers), the RRCS-8 (eight DTMF 
receivers), and the RRCS-12 (12 DTMF receivers).
RSISOptional RS-232 Serial Interface Unit—A subassembly installed on the RSIU 
optional interface unit that allows the system to be connected to any of the 
following features: voice mail SMDI, MIS for ACD, SMDR, local DK Admin/DK 
Backup personal computer, external maintenance modem, Open Architecture 
personal computer.
Term Definition 
						

							Glossary
RSIU ~ T1/DS-1
Strata DK I&M 5/99GL-11
Glossary
RSIUOptional RS-232 Serial Interface Unit—An optional PCB that provides interface to 
any of the following features: voice mail SMDI, MIS for ACD, SMDR, local or 
remote DK Admin/DK Backup Personal computer, built-in (RMDS) or external 
system maintenance modem, Open Architecture personal computer. By itself, the 
RSIU PCB provides one interface port. With up to three RSIU/RMDS 
subassemblies, it can provide up to four interface ports.
RSTU 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 RSTU has a built-in 80V RMS sine wave ring generator. The 
RSTU also has connectors for the R48S, which extends station loop length and is 
described in this section.
RSTU2 Standard Telephone Interface Unit—An optional PCB functionally identical to the 
RSTU. RSTU2 also contains a 90-volt DC message waiting/generator/switching 
circuit to operate standard telephone message waiting lamps.
RWBF1 Wall bracket Fixture—Bracket that is part of an installation kit (RFIF) that is used 
to floor mount systems.
RFMF Floor Mount Fixture—Fixture that is part of an installation kit (RFIF) that is used to 
floor mount systems.
R48S Optional 48V Power Supply—Subassembly that can be connected to the RSTU or 
RDSU to extend the loop length of standard telephone circuits (including the 
resistance of the phone) from 600 ohms to 1200 ohms.
[SDN] Secondary Directory Number.
SFSuper Frame.
SLTSingle-line Telephone.
SMDI Simplified Message Desk Interface: RS-232 link from PIOU, PIOUS, RSSU, RSIS, 
or RSIU modular jack connected to a voice mail machine to provide Strata DK 
voice mail integration.
SMIS Software MIS for ACD.
SSTUFactory-installed sub-unit board that is “piggy-backed” onto the PSTU or PSTU2.
S/T InterfaceReference interface points (“S” or “T”) of an ISDN network. S/T interfaces are 
RJ-45, 8-wire connection interfaces for ISDN equipment. An NT-1 is needed to 
network U-type BRI lines to S/T type interfaces. 
TA P ITelephone Application Programming Interface.
TATerminal Adapter or ISDN modem that converts PC and other types of protocol into 
a signal that works with ISDN. Generally, TAs support RJ-11 voice ports and RS-
232C or V.35 or V.449 data interfaces.
T1/DS-1See RDTU.
Term Definition 
						

							GL-12Strata DK I&M 5/99
Glossary
TCIU1 ~ WSIU
TCIU1Caller ID—An optional PCB that provides the Caller ID option in the Strata 
DK424.
TCIU2Caller ID—An optional PCB that provides the Caller ID option in the Strata DK40.
TCOUFour-Circuit Loop Start CO Line Board— An optional PCB providing four loop 
start CO line circuits in the Strata DK40.
TDDU
Four-Circuit DID Line Digital Telephone Interface Unit— An optional PCB 
providing four DID line circuits in the Strata DK40.
TE
Terminal Equipment. This refers to devices using ISDN service (telephones, faxes, 
computers, etc.). TE1 supports ISDN formats with S/T or U-type intefaces.
TSPI
Telephony Service Provider Interface.
TSIU
RS-232 Ports—An optional PCB that provides up to two RS-232 interface ports 
(modular jacks) enabling the DK40 to connect to various hardware devices.
TTYFlexible RS-232 port which can be used for maintenance SMDI and MIS (ACD).
U InterfaceA single twisted pair of copper wire on an RJ-11 jack. The wiring is identical to 
POTS, with different signaling. Only one U-interface device can be attached per 
line.
universal slotSlots in a telephone KSU/cabinet that are used for a variety of optional PCBs.
WSIUSerial Interface Board (DK14)—Provides two serial ports for either a Station 
Message Detail Recording (SMDR) device or a maintenance terminal or modem, or 
Caller ID interface.
Term Definition 
						

							Strata DK I&M 5/99IN-1
Index
Index
A
ABR receiver,2-2
ACD
installation guidelines
,11-4
Strata DK built-in auto attendant,11-6
to voice mail or auto attendant,11-6
ADM,2-3
installation (DKT2000),9-16
limits,3-39
amplified talk path,10-33
amplifier requirements,10-33
attendant console,9-47
interface unit,7-22
attendant position options,4-16
auto attendant,2-2, 10-76
built-in
ACD
,11-6
ACD applications (DK424),10-81
block diagram,10-82
DK14,1-18
installation,10-80
overview,10-77
programming,10-78
DK424 feature key,4-15
auto dial (PC ) voice call,10-73
auto disconnect
digital announcer
,10-82
auto preference,9-25
automated attendant (see auto attendant)
B
background music (see BGM),7-14
base cabinet,4-2
base cabinet installation,5-7
base KSU (see key service unit)
base KSU PCB
K4RCU3
,3-23
KSTU2,3-25
TCIU2,3-28
TCO,3-30
TDDU,3-33
TSIU,3-36
basic rate interface (see BRI, see also ISDN)
battery
DK14 reserve power battery/charger 
(HPFB)
,1-7
removing and charging,9-27
battery backup
DK40i interface
,2-2
beep strap,9-14, 9-19
BGM,2-2, 7-14, 10-3
alternate source installation,10-9
external installation,10-10
options,10-3, 10-6
single page zone,10-26
to connect source,10-9
BRI,3-38
BRI circuit jack (TE or NT mode),14-26
BRI wire type recommendations,14-27
built-in auto attendant
(see auto attendant, built-in)
busy override
,9-15
C
cabling
DDCB/HDCB/MDFB
,9-22
call center viewer (CCV),11-14
configuration,11-16
software installation,11-16
Y connector (CCVY),11-16
call monitoring,14-13
caller ID,3-28
interface,2-2, 7-23 
						

							Index
CAMA trunk direct interface (RMCU/RCMS), 
						

							In dex
Stra ta D K I& M   5/99  IN-3
Inde x 
						

							Index
F