Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

							DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
Strata DK I&M 5/995-51
DK424 Installation
RCTU Installation
CAUTION!
1. Do not remove the plastic insulation shield from the back of the RCTU PCB. If the 
shield comes off, do not allow the back of the PCB to contact metal.
2.The RCTU PCBs are shipped from the factory with the battery jumper in the “OFF” 
position. Ensure it is moved to the “ON” position before installing the RCTU to 
protect customer configuration information stored in the RCTU RAM.
3. The power supply must be off when installing the RCTU PCB or damage to the 
board could result.
1.Set the P5, P8 or P9 battery jumper on the RCTUA, BA3, C3, D3, or RCTUF3 to the “ON” 
position (see Figures 5-31~5-38).
2. Ensure the RCTU has been configured for the appropriate hardware options (i.e., RRCS or 
RKYS). See “Internal Hardware Options” on Page 5-48.
3. Insert the RCTUA, RCTUBB, RCTUD, or RCTUF (1, 2 or 3) into the “RCTU” slot in the 
Base Cabinet. If RCTUA and RSIU is installed, you must also install a ribbon cable between 
them (“RSIU, RSIS, RMDS RS-232/Modem Interface Unit” on Page 7-45).
Ensure the component side of the RCTU PCB is facing right when installing it in the Base 
Cabinet.
4. Insert the RCTUBA, RCTUC, or RCTUE PCB into slot R11.
5. After installing the RCTU PCBs, gently pull it outward. If the connectors are properly mated, 
a slight resistance will be felt.
6. Connect the supplied ribbon cables between RCTUA, RCTUBA and BB and RSIU, if 
installed; or RCTUC/D, RCTUE/F, and RSIU, if installed.
NoteDo not adjust the C14 or C15 trimmer capacitor. The capacitor is factory-calibrated.
CAUTION!When transporting the RCTU PCBs, keep the P8 or P9 battery jumper in the 
“ON” position in order to save the configuration data stored in RCTU RAM. 
(The battery will protect RAM for approximately six years.) Otherwise, to 
conserve the lithium battery, move the jumper to the “OFF” position.
When packaging the RCTU PCB, use only a nonconducting material enclosure, such as plain 
cardboard. Conductive material can cause the internal battery to discharge and erase memory in 
the RCTU PCB.
RCTU Programming
After initially installing a new and unused common control unit, all on-board RAM memory needs 
to be erased and initialized by running Program 91-9 twice after all other PCBs are installed. If 
RAM contains configuration or feature data from previous programming that should be retained, 
do not run Program 91-9. See the Strata DK Programming Manual.  
						

							DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
5-52Strata DK I&M    5/99
If installing a RCTU PCB perform a processor RAM test using Program 00, part 2. On new RCTU 
installations, the RAM test should be run after RCTU initialization and before entering the 
customer database. 
The following parameters can be specified, through programming, for the RCTU PCB.
Program 00, part 2: RCTU RAM test.
Program 03:
ä
For RCTUA, RCTUBA3, RCTUC/D, RCTUE/F—assign the appropriate slot code for each 
PCB: slot code 00 for RCTUA, RCTUBA, RCTUC or RCTUE; slot code 01 for RCTUD and 
RCTUF.
ä
Assign the appropriate code for each PCB: 
©Code 91 – no RRCS
©Code 92 – four RRCS circuits
©Code 93 – eight RRCS circuits
©Code 94 – 12 RRCS circuits
Notes
lSystem Power must be cycled or Program 91-2 must be run after Program 03.
lIf there are no options on the RCTU, Program 03 can be skipped and Program 91-1 or 91-
9 can be run instead.
ä
Program *03: For RCTUE/F only. Run program to identify DK424 and DK280 cabinets.
ä
Program 12: Select the seize time of the RRCS circuits.
ä
Program 90, 91, 92: RCTU initialization programs.
DK280 to DK424 Base Cabinet Upgrade Considerations
1. Remove MBJU from the DK424 Base Cabinet motherboard.
2. After installing and initializing the RCTUE/F, run Program *03 to identify the DK280 and 
DK424 cabinets.
©DK280 Expansion Cabinet slots S_1 to S_6 operate; S_7 and S_8 do not.
©DK424 Expansion Cabinets slots S_1 to S_8 operate.
Important!If installing station and/or CO line PCBs in slots S_7 and S_8, the ports and/or lines 
will shift by 4, 8, 16, or 24, depending on the PCBs installed in S_7 and/or S_8. 
Toshiba recommends moving the existing 25-pair and modular cables backward, in 
order, to the newly installed PCBs to keep the port and CO line numbers matched 
with the cable pairs. 
						

							DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
Strata DK I&M 5/995-53
DK424 Installation
Figure 5-32 RCTUA PCB Table 5-7 RCTUA Controls, Indicators, and Interface Connectors 
Control/Indicator/ConnectorType of ComponentDescription
DTMF Receiver Connector P2 10-pin male connectorInterface connector for optional DTMF receiver 
subassembly (RRCS).
Used in conjunction with P3, P4 and P5.
DTMF Receiver Connector P3 6-pin male connector Used in conjunction with P2, P4 and P5.
DTMF Receiver Connector P4 10-pin male connector Used in conjunction with P2, P3 and P5.
DTMF Receiver Connector P5 6-pin male connector Used in conjunction with P2, P3 and P4.
BATT Battery Jumper P8 3-terminal jumperInterface connector for on-board lithium battery 
that protects configuration data stored in 
system RAM.
MOH/BGM Source Connector RCA jack Interface connector for MOH/BGM source.
Future Feature Upgrade 
Connector P11 & P12Connector for ribbon cableConnector for connection with future feature 
upgrade PCB.
MOH/BGM Source Volume Control 
VR1Trim potentiometerAdjusts volume for MOH/BGM source 
connected to RCTUA.
Heart Beat indicator CD11 Red LEDFlashes to indicate operation (1/4 second ON 
– 1/4 second OFF).
Backplane Connector
P5P4
BATT
ON
OFF
P3 P2P11 VR1
CBRUKIC12
Feature Upgrade
Connectors
(not used)
RRCS
Connectors
RCTUA3RCTUA3
RRCS
Connectors
U3
Heartbeat LED
P1
Tone
ROM
IC16 IC15
Program
ROMs
IC15, 16, 17, 
and 18
BGM and MOH
Interface
(RCA Jack)
RKYS
Key Socket
Install in “RCTU” Slot
BGM/MOH Volume Control
To RSIU
P12 
RAA3-6RAA3-5
IC18 IC17
RAA3-8RAA3-7
3226
6
F
Software
Version
R3.2 =  
						

							DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
5-54Strata DK I&M    5/99
Figure 5-33 RCTUBA PCB Table 5-8 RCTUBA Controls, Indicators, and Interface Connectors
Control/Indicator/ConnectorType of ComponentDescription
RCTUBA ribbon cable Connector 
P2Connector and ribbon 
cableRibbon cable connector for connection to 
RCTUBB. Used in conjunction with P2.
DTMF Receiver Connector P3 10-pin male connectorInterface connector for optional DTMF receiver 
subassembly (RRCS). Used in conjunction 
with P4, P5, and P6.
DTMF Receiver Connector P4 6-pin male connector Used in conjunction with P3, P5, and P6.
DTMF Receiver Connector P5 10-pin male connector Used in conjunction with P3, P4, and P6.
DTMF Receiver Connector P6 6-pin male connector Used in conjunction with P3, P4, and P5.
BATT Battery Jumper P9 3-terminal jumperInterface connector for on-board lithium battery 
that protects configuration data stored in 
system RAM.
MOH/BGM Source Connector RCA jack Interface connector for MOH/BGM source.
RCTUBA ribbon cable Connector 
P11Connector and ribbon 
cableRibbon cable connector for RCTUBA and 
RSIU. Used in conjunction with P2.
MOH/BGM Source Volume Control 
VR1Trim potentiometerAdjusts volume for MOH/BGM source 
connected to RCTUBA.
Backplane Connector
P6 P5
P4RCTUBA3P3
VR1 
BGM/MOH Volume Control
(Screwdriver Adjustment)
IC10
RRCS
Connectors
RRCS
Connectors
BGM/MOH Interface
(RCA Jack) Place Battery
Jumper to ON Position
Before Installing PCB Install in 
Slot “R11” P1
Program
ROM
To RCTUBB/RSIS
ConnectorsP11 P2
To RCTUBB (and RSIU if Installed)
BATTONOFFP9
RCTUBA3
1367 
						

							DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
Strata DK I&M 5/995-55
DK424 Installation
Table 5-9 RCTUBB Controls, Indicators, and Interface Connectors
Control/Indicator/ConnectorType of ComponentDescription
Connector P2Connector for ribbon 
cablesConnector for RCTUBA ribbon cables. Used 
with P2.
Connector P3Connector for ribbon 
cablesConnector for RCTUBA and RSIU ribbon 
cable. Used with P11.
Heart Beat indicator CD11 Red LEDFlashes to indicate operation (1/4 second ON 
— 1/4 second OFF).
Figure 5-34 RCTUBB PCB
Backplane Connector
IC10P1
Program
ROMS
IC9, 10, 11, and 12
To RCTUBA/RSIU
Connectors
CD5RCTUBB4
CBRUK
Heart Beat
LED
P3P2 IC9
U3
RKYS 
Key Socket
Ribbon Cable to RCTUBA
(and RSIU if installed) Ribbon Cable to RCTUBA
Install in 
“RCTU” Slot
RBA3-0
Identifies
ROM Version
RBA3-9
RBA3-2
RBA3-1
IC12 IC11
RCTUBB4
1368 
						

							DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
5-56Strata DK I&M    5/99
Table 5-10 RCTUC3 Controls, Indicators, and Interface Connectors
Control/Indicator/ConnectorType of ComponentDescription
RCTUC Ribbon Cable Connector 
P2Connector and ribbon 
cableRibbon cable connector for connection to 
RCTUD. Used in conjunction with P2.
DTMF Receiver Connector P3 10-pin male connectorInterface connector for optional DTMF receiver 
subassembly (RRCS). Used in conjunction 
with P4, P5, and P6.
DTMF Receiver Connector P4 6-pin male connector Used in conjunction with P3, P5, and P6.
DTMF Receiver Connector P5 10-pin male connector Used in conjunction with P3, P4, and P6.
DTMF Receiver Connector P6 6-pin male connector Used in conjunction with P3, P4, and P5.
BATT Battery Jumper P9 3-terminal jumperInterface connector for on-board lithium battery 
that protects configuration data stored in 
system RAM.
MOH/BGM Source Connector RCA jack Interface connector for MOH/BGM source.
RCTUC ribbon cable Connector 
P11Connector and ribbon 
cableRibbon cable connector for RCTUD and RSIU. 
Used in conjunction with P2.
MOH/BGM Source Volume Control 
VR1Trim potentiometerAdjusts volume for MOH/BGM source 
connected to RCTUC.
Backplane Connector
P6P5
P4 P3
VR1 
BGM/MOH Volume Control
(Screwdriver Adjustment)
IC10
RRCS
Connectors
RRCS
Connectors
BGM/MOH Interface
(RCA Jack) Place Jumper in
ON Position Before
Installing PCBInstall in Slot “R11” P1
Program
ROM
RCTUD/RSIU
ConnectorsP11 
RCTUC  3
P2
BATTONOFFP9
1369
To RCTUD (and RSIU, if Installed)
Figure 5-35 RCTUC PCB 
						

							DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
Strata DK I&M 5/995-57
DK424 Installation
Table 5-11 RCTUD3 Controls, Indicators, and Interface Connectors (for Release 3)
Control/Indicator/ConnectorType of ComponentDescription
RCTUD Connector P2Connector for RCTUC 
ribbon cablesUsed with P2.
RCTUD Connector P3Connector for RCTUC 
ribbon cablesUsed with P11.
BATT Battery Jumper P9 3-terminal jumperInterface connector for on-board lithium battery 
that protects configuration data stored in 
system RAM.
DTMF Receiver Connector P5 6-pin male connectorInterface connector for optional DTMF receiver 
subassembly (RRCS).
Used in conjunction with P6, P7, and P8.
DTMF Receiver Connector P6 10-pin male connector Used in conjunction with P5, P7, and P8.
DTMF Receiver Connector P7 10-pin male connector Used in conjunction with P5, P6, and P8.
DTMF Receiver Connector P8 6-pin male connector Used in conjunction with P5, P6, and P7.
Heart Beat Indicator CD5 Red LEDFlashes to indicate operation (1/4 second ON, 
1/4 second OFF).
P8P7
P6 P5
IC10
P1
Program
ROMS
IC9, 10, 11, and 12
To RCTUCTo RCTUC (and RSIU, if installed)
P3P2
IC9
U3 U4
RCA4-0
RCA4-9
RCA4-2
RCA4-1
IC12 IC11
 
 Software
Version R4 =  
 Software
Version R4 =  
 Software
Version R4 = 
BATT ONOFF
P9
3183
RCTUD4.XUpgrade 
Label
 
 
RCTUD4.X
Figure 5-36 RCTUD PCB
    
						

							DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
5-58Strata DK I&M    5/99
 
CAUTION!When removing the RTSS from RCTUE3, take off the RTSS slowly, rocking 
back and forth in the direction of the arrows in the diagram.
Table 5-12 RCTUE3 Controls, Indicators, and Interface Connectors
Control/Indicator/ConnectorType of ComponentDescription
RCTUF Connector P2Connector and ribbon 
cableRibbon cable connector to RCTUF and RSIU. 
Used in conjunction with P2.
RRCS Connector P8 10-pin male connectorInterface connector for optional DTMF receiver 
subassembly (RRCS).
Used in conjunction with P6 and P7.
RRCS Connector P7 3-pin male connectorInterface connector for optional DTMF receiver 
subassembly (RRCS).
Used in conjunction with P6 and P9.
RRCS Connector P6 6-pin male connectorInterface connector for optional DTMF receiver 
subassembly (RRCS).
Used in conjunction with P7 and P9.
MOH/BGM Source Connector RCA jack Interface connector for MOH/BGM source.
RCTUF Connector P11Connector and ribbon 
cableRibbon cable connector to RCTUF and RSIU. 
Used in conjunction with P11.
MOH/BGM Source Volume Control 
VR1Trim potentiometerAdjusts volume for MOH/BGM source 
connected to RCTUF.
P7 P6
RCTUE3A
VR1 
BGM/MOH Volume Control
(Screwdriver Adjustment)BGM/MOH Interface
(RCA Jack)Install in Slot “R11”
To RCTUF (and RSIU, if Installed)
1861
RRCS
Connectors RRCS
ConnectorsBackplane Connector
RCTUF/RSIU
Connectors
P8P11 
P2P1
UP
UP
RTSS
Figure 5-37 RCTUE PCB with RTSS Subassembly 
						

							DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
Strata DK I&M 5/995-59
DK424 Installation
CAUTION!When removing the RMMS from RCTUF, take off the RMMS slowly, rocking 
back and forth in the direction of the arrows in the diagram.
Table 5-13 RCTUF4 Controls, Indicators, and Interface Connectors
Control/Indicator/ConnectorType of ComponentDescription
RCTUE Connector P2 Connector and ribbon cableRibbon cable connector to RCTUE and RSIU. 
Used in conjunction with P2.
RCTUE Connector P3 Connector and ribbon cableRibbon cable connector to RCTUE and RSIU. 
Used in conjunction with P3.
DTMF Receiver Connector P8 10-pin male connectorInterface connector for optional DTMF receiver 
subassembly (RRCS).
Used in conjunction with P6, P7, and P9.
DTMF Receiver Connector P9 6-pin male connector Used in conjunction with P5, P7, and P9.
DTMF Receiver Connector P10 10-pin male connector Used in conjunction with P5, P6, and P9.
Heart Beat Indicator CD5 Red LEDFlashes to indicate operation (1/4 second ON, 
1/4 second OFF).
BATT Battery Jumper P5 3-terminal jumperInterface connector for on-board lithium 
battery that protects configuration data stored 
in system RAM.
P9 P10
1860
Backplane Connector
RRCS
ConnectorsRRCS
Connectors
Heart Beat
LEDRCTUE/RSIU
Connectors
To RCTUETo RCTUE (and RSIU, if Installed)
P8 CD5
RCTUF4P2
CBRUK
P3
BATT ON OFF P5
UP
UP
RMMS
Figure 5-38 RCTUF PCB with RMMS Subassembly 
						

							DK424 Installation
RCTUA, RCTUBA/BB, RCTUC/D, RCTUE/F Common Control Units
5-60Strata DK I&M    5/99
POW DTR DSR
Standard
Telephone Building #1
Building #2
PCOU, RCOU/RCOS
RGLU, RCIU/RCIS, 
RBUU/RBUS, 
RBSU/RBSS, 
RMCU/RCMS
RDDUElectronic
or Digital
Telephone
Electronic or Digital 
Telephone or Cordless Base
MDFB RATI
E&M Tie Line
Ground/Loop/ISDN BRI/
E911 CAMA Lines
Secondary protectors – standard voltage
Secondary protectors – low voltage HDCB
or DDCB PEKU
PESU
PDKU
RDSUHDSS  or DDSS
ConsoleHESB
RATU
RDTU or 
RPTU
REMU
DID LineConventional
Attendant
Console PC
Attendant
Console
DDCB or 
HDCBMDFB
T1 Span Line or ISDN PRI Line
Earth Ground
Earth GroundCSU PSTU
RSTU/RSTU2
RDSU/RSTS2077
Important!To protect against transient voltages and currents, solid state secondary 
protectors must be installed if there is outside wiring, and on all DID and E&M 
Tie lines. These protectors, which contain fast semiconductors in addition to fuses, 
shall comply with the requirements for secondary protectors for communication 
circuits, UL 497A. Care must be taken to ensure that they are very well grounded 
to a reliable earth ground. Recommended protectors are available in the fast 
Series 6 line from ONEAC Corp., Libertyville, Illinois 60048, (800) 327-8801. 
Install and test the secondary protectors precisely to the installation instructions 
of thee manufacturer.
Figure 5-39 DK424 Secondary Protector Diagram