Expansion And Configuration; Expansion Cabinets - Toshiba Strata DK14 General Description Manual
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Also See for Strata DK14:
- Installation and maintenance manual (724 pages) ,
- Programming manual (424 pages) ,
- System administrator manual (56 pages)
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Strata DK424
Architecture
Expansion and Configuration
System station and CO line capacity is increased with the addition of cabinets and CO line and/or
station PCBs.
cabinets and PCBs are used.
Base Cabinet
The Base Cabinet reserves two slots specifically for the system common control unit, labeled
"R11" and "RCTU." The Base Cabinet also has six universal slots, labeled "S11 ~ S16," which can
accommodate any station, line or option PCB (see
R11
PCTU
S13
S14
Figure 10
Base Cabinet Interior
Common Control Units
The system operates with one of four common control units (RCTUA, RCTUBA/BB, RCTUC/D,
or RCTUE/F). These common control units (sometimes called the "RCTU processors") can only
be installed in the Base Cabinet.
The RCTUA unit consists of a single PCB.
The RCTUBA/BB, RCTUC/D and RCTUE/F common control units consist of two PCBs.
The RCTI also has a MOH/BGM source interface, and connectors to mount optional DTMF
receiver PCBs needed for DISA, Tie/DID/Dialed Number Identification Service (DNIS)/
Automatic Number Identification (ANI) lines, voice mail, AA announcement devices, DTMF
standard telephones, and other peripherals. The RCTU provides an interface for connecting an
optional feature key (RKYS).
The common control unit contains the system's main 16 or 32-bit, 68000-type microprocessor and
microprocessor bus, battery-protected memory circuits, time switch logic, ABR tone detectors,
and system tones. (See
Expansion Cabinets
The Expansion Cabinets have eight universal slots, "S_1" ~ "S_8." Each of the universal slots can
interface with station, line, or option PCBs. Slots "S_1" ~ "S_6" are available with the RCTUA,
RCTUBA/BB, or RCTUC/D. Slots "S_7" and "S_8" are only available with the RCTUE/F
processor. See
processor capacity (see
20
Tables 11~15
show the number of stations and lines allowed when additional
S11
S12
S15
S16
R11
RCTU
S11
Figure 12
on
Figure 11
for slot numbers. The number of expansion cabinets varies according to
Tables
16~19.
Figure
10).
S12
S13
S14
S15
Page 29
for more information.)
DC OUT
1
POWER
-24V
2
+5V
3
-5V
DKSUB
DKSUE
+
BATT
-
ON
OFF
AC IN
S16
FG
Strata DK General Description
2520
5/99
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