Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

DK424 Installation
Reserve Power Installation
Strata DK I&M 5/995-41
DK424 Installation
1. When floor mounting the DK424, the batteries must be installed by a licensed electrician per local electric code using conduit. 
(See Figures 5-25, 5-21 and 5-22 DKSUE424.)
2. RBTC1A-2M cable current ratings: discharge, 12 amps max./charge, 3.9 amps max.
3. PBTC-3M and RBTC1A-15M cable current ratings: discharge, 4.9 amps max./charge 0.6 amps max.
4. Batteries should be installed in a customer-supplied commercial...

DK424 Installation
Reserve Power Installation
5-42Strata DK I&M    5/99
 
Right Side View
Loosen bottom two cover
screws to remove cover
Bottom
Cabinet
RFMFI
+–BATT
LNAC120V
FG
RCCB
(Shown with cover off)
Loosen top two cover
screws to remove cover
RCCB1 or RCCB2
(Shown with cover on)
Side View of RCCB
Conduit Holes to
1/2 Inch 
(Tradesize)
Conduit
To RBDB or RBDB2
(Battery Distribution Box)
Battery Wires
(12-AWG minimum)
24 AMPS MaxAC Power Wire
(14-AWG minimum)
11.5 AMPS Max (RCCB1)
17.5 AMPS Max...

DK424 Installation
Reserve Power Installation
Strata DK I&M 5/995-43
DK424 Installation
NoteAC/DC wiring and conduit “A” and “B” must be installed by a licensed electrician per 
local electrical code (conduit trade size is 1/2 inch).
See Figure 5-25 on Page 5-41 for battery specifications and wiring guidelines.)
Figure 5-27 Reserve Power/AC Wiring for Three to Six Cabinets (Floor Mount)
TO 
RPSU1
+ – + –
TO 
RPSU2
TO 
RPSU3
TO 
RPSU4
TO 
RPSU5
TO 
RPSU6
BATT
PSU
+     –BATT AC120VL   N    FG
A BA
B
1
6•...

DK424 Installation
Reserve Power Installation
5-44Strata DK I&M    5/99
CAB 1
RPSB1A RPSB1A
EXP EXP EXP EXP EXP EXP BASE
RPSU280A
RPSU280ASeventh Cabinet 
BATT Cable
supplied with
RCTC1A-1.7M
BATT
AC IN BATT
AC IN
RPSU280A
BATT
AC IN
RPSU280A
BATT
AC IN
RPSU280A
BATT
AC IN
RPSU280A Cabinet 1
(Base)
Cabinet 2
(Expansion)
Cabinet 3
(Expansion)
Cabinet 4
(Expansion)
Cabinet 5
(Expansion)
Cabinet 6
(Expansion)
Cabinet 7
(Expansion)MBJU
Jumper Unit
BATT
AC IN
RPSU280A
External Battery (27.3VDC/35A max.)
AC...

DK424 Installation
Printed Circuit Board (PCB) Installation
Strata DK I&M 5/995-45
DK424 Installation
Printed Circuit Board (PCB) Installation
This section provides procedures for the installation of DK424 Base and Expansion Printed Circuit 
Boards (PCBs). It includes installation instructions, optional configuration information, wiring, 
and programming considerations for each PCB.
The DK424 system Base and Expansion Cabinets are shipped empty. The power supplies and 
PCBs are not installed at the...

DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
5-46Strata DK I&M    5/99
Hardware Options
Some PCBs must be configured for hardware options prior to installation of the PCB in the 
cabinet. Configuration instructions for internal hardware options are provided in the individual 
PCB installation procedures in this chapter. Configuration instructions for external hardware 
options are provided in Chapter 10 – Peripheral Installation.
Software Options
PCBs are configured for...

DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
Strata DK I&M 5/995-47
DK424 Installation
Figure 5-29 RCTU Slot Placement
Maximum Line Capacities
Configurations for a fully-expanded system can range from 40 lines/ 336 stations to a squared 
system of 200 outside lines/192 stations.
Table 5-5 Maximum Line Capacities by Processor Type
Common Control UnitNumber of CabinetsMaximum
Lines Stations
RCTUA  one Cabinet (Base Cabinet) 16 32
RCTUBA/BBup to two Cabinets (Base Cabinet plus...

DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
5-48Strata DK I&M    5/99
Additionally, each of the common control units can support a separate set of features. Refer to 
Chapter 4 – Configuration for more information.
Each of the common control units (except RCTUBB) may be equipped with an RRCS (4, 8, or 12) 
to interpret Dual-Tone Multi-Frequency (DTMF) signals transmitted from Tie/DID lines, built-in 
AA and standard telephone ports. The common control units also provide an...

DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
Strata DK I&M 5/995-49
DK424 Installation
Music-on-hold/Background Music Volume Control (External Options) 
Each of the common control units (except RCTUBB, RCTUD and RCTUF) has a trim 
potentiometer (VR1) to adjust the volume of the MOH/BGM source connected to the Music-on-
hold (MOH)/Background Music (BGM) RCA jack interface, which is also on the common control 
unit. The volume control potentiometer and the MOH/BGM interface...

DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
5-50Strata DK I&M    5/99
ä
To install an RRCS onto RCTUA, RCTUBA/BB, RCTUC/D, or RCTUE/F
ä
Mate RRCS connectors J1, J2, J3, and J4 (See Figure 5-31) with the applicable RCTU PCB. 
Apply firm, even pressure to the RRCS to ensure proper mating of the connectors.
RCTUA connectors are P2, P3, P4, P5. (See Figure 5-32.)
RCTUBA connectors are P3, P4, P5, P6. (See Figure 5-33.)
RCTUC connectors are P3, P4, P5, and P6; RCTUD connectors...