Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

							Station Apparatus
Electronic Telephone Upgrades
Strata DK I&M    5/999-19
Station Apparatus
Adjust (HESB) Loud Ringing Bell Volume
1. Call the telephone connected to the HESB.
2. Adjust the volume control on both the back of the HESB and the ring volume control on the 
telephone.
Carbon Headset/Handset Straps
If a carbon-type handset or headset is connected to the handset jack on the side of the 6500-series 
electronic telephone, two straps inside the telephone must be cut.
ä
To cut the straps
NoteIt is not necessary to cut these straps if the headset is connected to the HHEU.
See Figures 9-2 and 9-13 and follow these steps:
1. Loosen the four captive screws on the telephone base and remove the base.
2. Locate the carbon straps, W201 and W202 and cut them.
3. Reinstall the telephone base, and secure it with its four captive screws.
Beep Strap
A “beep” sounds whenever a dial pad button or feature button is pressed on an electronic 
telephone. 
ä
To eliminate the beep
See Figures 9-2 and 9-13 and follow these steps:
1. Remove the four captive screws on the telephone base to the telephone and remove the base.
2. Locate and cut the beep strap on the telephone PCB.
3. Reinstall the electronic telephone base and secure in place using the four captive screws.
Microphone/Speaker Threshold (Speakerphones only)
High ambient noise levels may cause the speaker on the electronic telephone speakerphone models 
(the EKT6510-S, EKT6520-S, and EKT6520-SD) to cut off frequently. 
äTo make these telephones less sensitive to noise and to prevent the cut-off
See Figures 9-2 and 9-13 and follow these steps:
1. Remove the four captive screws on the base to the telephone, and remove the base.
2. Locate the room noise switch on the PCB inside the telephone, and push it carefully to the HI 
(high) position.
3. Reinstall the telephone base and secure in place using the four captive screws.
Handset Receiver Volume-up Strap (Version 2 6500-series Telephones Only)
For Version 2 (V.2) 6500-series electronic telephones only, the handset receiver volume can be 
increased six decibels (dB) by cutting a strap inside the telephone.  
						

							Station Apparatus
Direct Station Selection (DSS) Console/System Connection
9-20Strata DK I&M    5/99
ä
To cut the strap
See Figures 9-2 and 9-13 and follow these steps:
1. Remove the four captive screws on the telephone base to the telephone, and remove the base.
2. Locate the R-UP strap on the PCB inside the telephone and cut it.
3. Reinstall the telephone base, and secure in place using the four captive screws.
Direct Station Selection (DSS) Console/System 
Connection
The Strata DK40i can support up to three DSS consoles and the DK424 systems configured with 
RCTUA can support up to three DSS consoles, RCTUB up to four DSS consoles, RCTUC/D and 
RCTUE/F up to eight consoles. 
There are two types of consoles: the Digital DSS 
(DDSS) and the Electronic (HDSS) console. The 
DDSS console can be connected to designated digital 
telephone circuits, and the HDSS console can only be 
connected to designated PEKU circuits. This 
section 
provides instructions on how to install both types of 
consoles.
DDSS Console Connections
The DDSS console, which can operate with a digital 
telephone (preferably an LCD model), can connect 
only to circuit 8 of a PDKU digital telephone circuit. 
Standard twisted single-pair or two-pair jacketed 
telephone cable (maximum 1000 feet, 303
 meters) is used for the connection.
To accommodate the DDSS console connection, the instrument end of the cable should be 
terminated in a modular station connector block (RJ-11). Refer to Chapter 8 – DK40i/DK424 
Universal PCB Wiring for wiring/interconnecting details.
Notes
lDDSS console cable runs must not have cable splits (single or double), cable bridges (of any 
length) or high resistance or faulty cable splices.
lSee Chapter 3 – DK40i Installation for secondary protection information and loop limits.
lSee Chapter 5 – DK424 for secondary protection information and loop limits.
CAUTION!When installing the DDSS cable, do not run the cables parallel if they are 
within three feet of an AC power line. AC power lines should be crossed at right 
(90
°) angles only. In particular, avoid running station wire pairs near devices 
that generate electrical noise, such as neon or fluorescent light fixtures.
DDSS Console Configuration
An RDSU will not support a DDSS.
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							Station Apparatus
Direct Station Selection (DSS) Console/System Connection
Strata DK I&M    5/999-21
Station Apparatus
DDSS Programming
Program 03: Code 64 identifies the slots that support DDSS consoles.
Program 28: Assigns DDSS console(s) to telephones.
Program 29: Assigns button functions for DDSS consoles.
HDSS Console
HDSS Console Connections
The HDSS console must be connected to the data pairs of circuits 7 and 8 on a PEKU with 
standard two-pair twisted, jacketed telephone cable. To accommodate the connection, the 
instrument end of the HDSS console cable should be terminated in a modular station connector 
block (RJ-11). Refer to Chapter 8 – DK40i/DK424 Universal PCB Wiring for wiring/
interconnecting details. 
If using 24 AWG cable, the overall length of the cable run from the Expansion Unit (KSU) to the 
HDSS console must not exceed 500 feet (152 meters). The HDSS console can operate with either 
an electronic or digital telephone (preferably an LCD model).
CAUTION!When installing the HDSS console cable, do not run the cables parallel if they 
are within 3 feet of an AC power line. AC power lines should be crossed at right 
(90
°) angles only. Avoid running HDSS console wire pairs near devices that 
generate electrical noise, such as neon or fluorescent light fixtures.
HDSS Console Configuration
The following considerations should be made when installing an HDSS console:
©A PEKU PCB is required.
©Two PEKU ports are required for the HDSS console (always circuits 7 and 8).
©The PESU does not support the HDSS console.
HDSS Programming
Program 03: Codes 23 and 24 identify the slot that supports a PEKU that interfaces with the HDSS 
console.
Program 28: Assigns HDSS console to a telephone.
Program 29: Assigns individual button functions for the HDSS console. 
						

							Station Apparatus
Door Phone (MDFB)
9-22Strata DK I&M    5/99
Door Phone (MDFB)
This section provides installation instructions for the Door 
Phone (MDFB). Door Phones can be installed can also with 
Door Phone/Lock Control Units (see following section). 
©DK14 can have up to 6 door phones
©DK40i can have up to nine door phones
©DK424 can have up to 12 door phones
Lock Control Unit and Door Phone
This section provides installation instructions for the Digital 
(DDCB) or Electronic (HDCB) Door Phone/Lock Control 
Units. Each DDCB or HDCB can support as many as three 
MDFBs or two MDFBs and one door lock.
DDCBs or HDCBs can only connect to slot 11/port 004, slot 12/
port 012, slot 13/port 020 and slot 14/port 028. DDCBs can only 
connect to circuit 5 (a PDKU or RDSU PCB and HDCBs can 
connect only to circuit 5 of a PEKU or PESU PCB).
DDCBs and HDCBs cannot connect to the RSTU2, PSTU, or 
KCDU.
DDCB/HDCB and MDFB Cabling
For DDCB, HDCB, and MDFB wiring/interconnecting details and door lock control installation 
procedures, refer to Chapter 8 – DK40i/DK424 Universal PCB Wiring. If using 24 AWG cable, 
the length of the cable run from the Strata DK to the MDFB (via the DDCB or HDCB) must not 
exceed 1,000 feet (305 meters).
lDDCB or HDCB cable runs must not have cable splits (single or double), cable bridges (of any 
length) or high resistance or faulty cable splices.
lSee Chapters 1, 3 or 5 for Strata DK14, DK40i or DK424 secondary protection information 
and loop limits.
1873
1874 
						

							Station Apparatus
Lock Control Unit and Door Phone
Strata DK I&M    5/999-23
Station Apparatus
DDCB/HDCB Wall Mounting
The DDCB and HDCB is designed to be 
mounted on a wall or other vertical 
surface. 
ä
To mount the units
1. Locate the two mounting holes on 
the right-hand side on the DDCB or 
HDCB (see Figure 9-16).
2. Remove the side cover from the 
DDCB or HDCB to expose the two 
left-hand mounting holes.
3. Position the DDCB or HDCB 
adjacent to the Base KSU with 
regard to wiring needs.
4. Secure the DDCB or HDCB to the 
mounting surface with four one-inch 
panhead wood screws.
MDFB Wall Mounting
1. Remove the screw from the bottom 
of the cover. Detach the cover from 
the base and metal frame (see 
Figure 9-17).
2. Position the metal frame and base 
to the mounting surface and secure 
with two one-inch panhead wood 
screws.
3. Attach cover to the metal frame and 
base and secure with the screw 
which was removed in Step 1.
MDFB Volume Control Adjustments
1. Remove the screw from the bottom 
of the MDFB cover.
2. Detach the cover from the base and 
metal frame.
3. The volume level is changed by a 
screw adjustment on the back of the 
MDFB. Turn the screw with a flat-
headed screwdriver while ringing 
the MDFB or while on a call with 
it. The volume level will change as 
the screw is turned.
KSU
A
B
C
DOOR
PHONEMounting
Screws (4)
External Power Straps
(DDCB Only)
KSU
Jack
MDFB
Jack
A~C
1493
Figure 9-16 Door Phone (DDCB or HDCB) Installation
NoteSee Table 3-9 regarding external power 
requirements.
Two Wall
Mounting Holes
Door Phone
Base
Metal Frame
3.25
inches
1494
Figure 9-17 Door Phone (MDFB) Installation 
						

							Station Apparatus
Cordless Digital Telephone (DKT2004-CT)
9-24Strata DK I&M    5/99
Door Phone/Lock Programming
Program 39: Assigns door phone and door lock buttons to digital telephones.
Program 77-1: Assigns DDCBs or HDCB to ports, door phone ringing over external page during 
the NIGHT mode, and door lock activation time.
Program 77-2: Busy out unused MDFB positions, identifies which DDCBs support the door lock 
option, and sets the door phone to ring one or five times.
NoteEach DDCB/HDCB door lock assignment will reduce the system door phone capacity by 
one (see Chapter 10 – Peripheral Installation for HDCB, DDCB, and PIOU/PIOUS door 
lock installation information).
Program 79: Assigns door phone-to-station ringing assignments.
Program 
*79: Assigns which [DN] flashes on telephones assigned in Program 79.
Cordless Digital Telephone (DKT2004-CT)
The Toshiba DKT2004-CT cordless digital telephone brings 
mobility and productivity to office telephones. Greater call 
access cuts down on leaving messages and “telephone tag.” 
Its compact design enables the user to take it to many 
locations within the office complex.
Digital 900 MHz spread spectrum technology provides nine 
simultaneous channels and represents state-of-the-art design 
and engineering. Spread spectrum technology provides 
clarity in unsurpassed range, several times greater than 
conventional analog cordless telephones. 
Spread spectrum technology also provides secure 
communications between cordless digital telephones and 
their corresponding base stations within a given 
environment. Fully charged, the cordless digital telephone 
provides over three hours of talk time, and 42 hours standby. 
An extended operation battery is also available to provide 
over five hours of talk time.
The cordless digital telephone either attaches to a Toshiba DKT2000-series corded digital 
telephone or is used as a stand-alone. It provides many sophisticated Strata features:
©LCD provides information such as User Name, DNIS and Caller ID
©Four programmable buttons for feature, multiple line or feature access
©Headset jack (headset optional)
©Handset volume adjustment
©Conference/Transfer (&QI7UQ) button
©Message Waiting LED
©+ROG button
©20 Speed Dial number memory (in addition to 40 station speed dials)
The DKT2004-CT cordless digital telephone operates from the same digital station port on the 
Digital Telephone Interface Unit (PDKU) as the DKT2000-series digital telephone which may or 
may not be attached.
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							Station Apparatus
Cordless Digital Telephone (DKT2004-CT)
Strata DK I&M    5/999-25
Station Apparatus
Precautions
Before you read anything else, please observe the following:
Rechargeable Nickel-Cadmium Battery Warning
©This equipment contains a Rechargeable Nickel-Cadmium Battery.
©Cadmium is a chemical known to the State of California to cause cancer.
©The Rechargeable Nickel-Cadmium Battery contained in this equipment may explode if 
disposed of in a fire.
©Do not short circuit the battery.
©Do not charge the Rechargeable Nickel-Cadmium Battery used in this equipment in any 
charger other than the one designed to charge this battery as specified in this Guide. Using 
another charger may damage the battery, or cause the battery to explode.
Rechargeable Nickel-Cadmium Batteries Must Be Recycled or Disposed of Properly
©Residents of Minnesota should contact 1-800-225-PRBA for information concerning 
reclamation and disposal of Rechargeable Nickel-Cadmium batteries.
©Residents outside of Minnesota should contact their local authorities for information 
concerning reclamation and disposal of Rechargeable Nickel-Cadmium batteries.:
CAUTION!To power your Toshiba DKT2004-CB Cordless base unit, use only UL Listed 
AC Adapter Model AD-9500 Class 2 Power Supply.
Ratings are:
Input:120VAC 14W
Output:0VDC 500mA
Important!Charge your battery for 10 hours before using your new Cordless Digital Telephone.
Cordless Telephone Installation
Important!Your telephone system must be programmed for Auto Preference for your TALK 
button to work. If there is a shared digital telephone, you receive internal system 
dial tone automatically after picking up the handset of your deskset. For example, in 
a DK system, Program 32 must have a setting other than “00.” It is best to set Auto 
Line Preference to access Intercom dial tone.
äTo install the cordless telephone
1. Select a location for your cordless digital telephone. Avoid excessive heat or humidity. 
2.Place the cordless digital telephone’s base unit on a desk or tabletop near a standard 120V AC 
outlet and within reach of the digital telephone line connection to your Strata DK system. 
WARNING! Toshiba does not represent this unit to be waterproof. To reduce the risk 
of fire, electrical shock, or damage to the unit, 
do not expose this unit to 
rain or moisture.
WARNING! To reduce risk of fire, use only Model EXP9580 or EXP9586 batteries. 
						

							Station Apparatus
Cordless Digital Telephone (DKT2004-CT)
9-26Strata DK I&M    5/99
3. Keep the base unit and handset away from sources of electrical noise (motors, fluorescent 
lighting, etc.).
Important!Place the cordless telephone to the right of the DKT. If placed on the left of the DKT, 
the cordless antenna will pick up a tone due to its close proximity to the DKT 
speaker and electronic parts.
Telephone Cord Connection
There are two telephone line jacks on the back of the base unit of your cordless digital telephone: 
“Line In” and “Line Out.” You can connect the cordless digital telephone to both the telephone line 
and a Strata DK digital telephone.
ä
To connect cords for use as a stand-alone telephone
äConnect the modular jack labeled “Line In” to the telephone wall jack.
...or
ä
To connect cords for use with a desk telephone
1. Unplug the telephone line cord from your desk telephone.
2.Connect this cord to “Line In” of your cordless telephone.
3. Using the two foot modular cord that came with your cordless telephone, connect the jack 
labeled “Line Out” to the desk telephone.
Connect and Apply Power to Base Unit
The AC adapter furnished with this telephone may be equipped with a polarized line plug (a plug 
having one blade wider than the other). This plug fits into the power outlet only one way. If you are 
unable to insert the plug fully into the outlet, try reversing the plug. If the plug still does not fit, 
contact your facilities coordinator about replacing the obsolete plug. Do not alter the shape of the 
blades on the polarized plug.
ä
To connect the cordless telephone using the AC adapter
1. Plug the AC adapter cord into the AC adapter input jack on the base unit (see Figure 9-18).
CAUTION!Use only the AC adapter supplied with your cordless digital telephone.
Figure 9-18 Cordless Telephone Connectors
Line Out
to DKT Modular
Cords
AC Adapter
1145
Line In to Digital Telephone Circuit
(DK14 KSU or DK40 Base KSU, KCDU, 
PDKU2, RDSU)
See Chapter 8 – DK40i/DK424 Universal 
Slot PCB Wiring 
						

							Station Apparatus
Cordless Digital Telephone (DKT2004-CT)
Strata DK I&M    5/999-27
Station Apparatus
2. Plug the AC adapter into a standard 120VAC 
wall outlet. 
3. Route the power cord where it is not a trip 
hazard, and where it will not become chafed and 
create a fire or electrical hazard.
4. Wrap the power cord around the notch on the 
bottom of the base unit (see Figure 9-19).
5. Check to see that the power LED is on, 
indicating the telephone has power.
6. Before using your cordless digital telephone, be 
sure to raise the antenna to the vertical position.
Attach/Remove Belt Clip to Handset (optional)
ä
To attach the belt clip to the handset
1. Snap the tabs of the belt clip into the notches on the sides of the handset.
2. Use the belt clip to attach the handset to your belt or pocket for convenient portability.
ä
To remove the belt clip
1. Pry one tab at a time from the notch on the side of the handset. 
2. Carefully lift the belt clip off.
The belt clip is designed to fit snugly onto the handset.
Handset Battery Pack Installation
1. Place a charged battery pack onto the handset so that it slides easily along the ridges.
If your battery is not charged, see “Removing and Charging Your Battery Pack”.
2. Slide the battery pack up onto the handset until it clicks into place.
You are now ready to configure your cordless digital telephone.
Removing and Charging Your Battery Pack
Before using your new cordless digital telephone, the battery must be charged continuously for 6 
to 8 hours.
äTo remove the handset’s battery pack
1. Press in on the battery pack release latch.
2. Slide the battery pack off the handset.
NoteYou may have to pull hard to slide the battery pack off, when the handset is new.
äTo charge the handset’s battery pack
1. Place the handset on the base unit.
2. Make sure the CHARGE LED lights. If it does not light, check to see that the AC adapter is 
plugged in and that the handset is making good contact with the base unit.
1175
Figure 9-19 Line Out Cord 
						

							Station Apparatus
Cordless Digital Telephone (DKT2004-CT)
9-28Strata DK I&M    5/99
Charging Extra Battery Packs
The base unit of your cordless digital telephone is equipped with a battery charger for charging an 
extra battery pack. This compartment has a latch that keeps the battery pack in place during 
charging.
ä
To charge extra battery packs
1. Position the battery pack so the inner side is facing toward the top of the base unit.
2. Slide the battery pack into the charging compartment until it clicks into place.
3. Make sure the BATTERY CHARGE LED lights. If it does not light, make sure the AC adapter 
is plugged in and that the battery pack is seated into the charger.
NoteCharge the standard 400 mAh battery pack without interruption for 6-8 hours. Charge the 
optional 730 mAh extended battery pack without interruption for 8-10 hours.
Tips on Extending Battery Pack Life
All rechargeable nickel cadmium batteries can develop a “memory” (reduced charge capacity) 
caused by repeated charge and discharge cycles. Batteries that have developed this effect do not 
operate to their fullest capacity.
ä
To avoid memory effect
äOperate the unit until the battery pack is completely discharged before recharging. For 
example, use the handset off the base all day. Only replace the handset on the base at night 
after a full day of use. Do not “top off” the charge after using the battery for a short time.
ä
To erase memory effect
äOperate the unit until the battery pack is completely discharged, then recharge it fully. Repeat 
this process at least three times.
LCD Low Battery Indicator
When the battery pack in the handset is low and needs to be charged you see this message on the 
display and the handset beeps. Table 9-3 shows symptoms.
ä To restore your battery capacity
äReturn the handset to the base unit for charging or replace the handset battery pack with 
another charged one.
Table 9-3 Low Battery Symptoms
On a Call...In Standby Mode...
Only the 
7$/. key operates. None of the keys operate.
Handset beeps once every three seconds Handset beeps once.
Complete your call as quickly as possible Cannot make call.
Replace battery pack. Replace battery pack before making a call.