Toshiba DK 16, DK8 manual Installation-Introduction

INSTALLATION-INTRODUCTION

SECTION 100-816-201

MARCH 1993

CODECs: Coder/Decoders—Semiconductors that allow the system to process analog-to-digital and digital-to-analog conversions.

DDCB: Digital Door Phone/Lock Control Unit—A peripheral hardware unit that can be connected to designated digital telephone circuits/ports. The DDCB has three interfaces, two of which are dedicated to door phones (MDFB), and one that can be connected to a MDFB or a door lock.

DISA: Direct Inward System Access—A feature available for CO lines that allows an outside party to access a STRATA system’s internal stations or outgoing CO lines without going through an operator or automated attendant. An optional security code and/or account codes may be set to prevent unauthorized access to outgoing CO lines for through system calling.

DK: Digital Key.

DKSU8: Key Service Unit (STRATA DK8 only)— The standard key service unit which includes the system's motherboard, power supply, two CO line circuits, four digital telephone circuits, relay service, and interface for Music-on-hold (MOH)/Background Music (BGM) and External Page.

DKSUB16: Base Key Service Unit (STRATA DK16 only)—The standard key service unit which in- cludes the system's motherboard, power sup- ply, four CO line circuits, eight digital telephone circuits, relay service, and interface for Music- on-hold (MOH)/Background Music (BGM) and External Page.

DKSUE16: Expansion Key Service Unit (STRATA DK16 only)—The optional key service unit which has four universal slots that can support CO line, station, and external option printed circuit boards that are compatible with the larger STRATA DK systems (DK24/DK56/DK96).

DSS: Direct Station Selection Console (STRATA DK16 only)—A console designed to facilitate the processing of a heavy load of incoming calls.

There are two types of DSS consoles: the DDSS console and the HDSS console. The chief differ- ence between them is that the DDSS console can be connected to designated digital tele- phone circuits, while the HDSS console can only be connected to designated electronic tele- phone circuits.

DTMF: Dual-tone Multi-frequency—Push-button dialing.

DVSU: Off-hook Call Announce Upgrade—A sub- assembly that allows a digital telephone to re- ceive Off-hook Call Announce.

EOCU: Off-hook Call Announce Upgrade (STRATA DK16 only)—An optional subassembly to the Electronic Telephone Interface Unit PCB (PEKU) or Standard/Electronic Telephone Interface Unit (PESU) that provides support for electronic tele- phones that must receive Off-hook Call An- nounce. Electronic telephones that must re- ceive Off-hook Call Announce must also have an HVSU2 subassembly or the combined HVSU/ HVSI subassemblies.

FCC: Federal Communication Commission—The telecommunication industry’s federal regulatory agency. All Toshiba hardware is FCC listed or approved.

HESB: External Speaker Box—A speaker/ampli- fier that can be configured with the system and telephones to provide a variety of functions.

HESC-65A:A cable that connects an HHEU- equipped digital telephone or electronic tele- phone to an HESB for a Loud Ringing Bell .

HHEU: Loud Ringing Bell/Headset Jack Interface Upgrade—A small subassembly for use inside a digital telephone or a 6500-series electronic telephone that allows a speaker (HESB) and/or a headset to be installed with the station.

HVSU2: Off-hook Call Announce Upgrade—A subassembly that enables an electronic tele- phone to receive Off-hook Call Announce.

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