System Components; Strata Dk8 Key Service Unit; Strata Dk8 Maximum Configuration; Strata Dk16 Maximum Configuration - Toshiba Strata DK8 General Description Manual

S T R A T A D K 8 & D K 1 6

G E N E R A L D E S C R I P T I O N

two standard telephone devices. Note that while the
DK8 provides up to ten station ports, only eight can
support digital telephones. The last two standard sta-
tion ports are designed for peripheral devices or stan-
dard telephone interfaces.
The STRATA DK16 Base Key Service Unit comes
equipped to interface with up to eight Toshiba-
proprietary digital telephones and four CO lines. It can
optionally be equipped with a four-circuit standard
telephone printed circuit board, a Music-on-hold
source, a BGM source, a night bell, and an
amplifier/speaker for external page.
The optional STRATA DK16 Expansion Key Ser-
vice Unit can be attached to the standard unit to
increase system capacities. A system equipped with
the optional unit can support up to eight CO lines and
16 Toshiba-proprietary telephones by using up to
three additional PCBs. An SMDR/TTY interface may
also be added as needed. Note that while the DK16
provides up to 20 station ports, only 16 can be digital
BASIC
KEY SERVICE UNIT
EXPANDED
KEY SERVICE UNIT
Figure 5

STRATA DK8 MAXIMUM CONFIGURATION

BASE
KEY SERVICE UNIT
WITH EXPANSION
KEY SERVICE UNIT
Figure 6

STRATA DK16 MAXIMUM CONFIGURATION

4
DIGITAL
CO LINES TELEPHONES
2 4
4 8
DIGITAL
CO LINES TELEPHONES
4
8
8 8
8 16
8 8
telephones, with the last four standard station ports
designed for peripheral device or standard telephone
interface.
Maximum capacities for STRATA DK8 and DK16
systems are shown in Figures 5 and 6.
3 S Y S T E M C O M P O N E N T S
This section describes the components of the
STRATA DK8 Key Service Unit and the STRATA
DK16 Base and Expansion Key Service Units. The
functional block diagrams in Figures 7 and 8 illustrate
the organization and connection of these compo-
nents.

STRATA DK8 KEY SERVICE UNIT

In addition to the +5 volt converter, main processor
and operating software for the system, the Key Ser-
vice Unit contains the circuitry and components (Fig-
ure 9 and Table E) as described in the following
STANDARD
TELEPHONES
0
2
ELECTRONIC
TELEPHONES
0
8
0
0
A U G U S T 1 9 9 3
STANDARD
TELEPHONES
4
4
4
12