Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

DK40i/DK424 Universal Slot PCBs
PDKU2 Digital Telephone Interface Unit
Strata DK I&M    5/997-7
DK40i/DK424 Universal 
Slot PCBsPrograms 28 and 29: Digital Direct Station Selection Consoles (DDSS) assignments.
Program *29: Enables ADMs on 2000-series digital telephones.
Program 27: Adjusts initial off-hook volume level for digital telephone handsets.
Programs 30, 31: Enables OCA.
Programs 77-1, 77-2, 79, *79: Digital Door Phone/Lock Control Unit (DDCB) and door phone 
ringing assignments.
Program 92-5:...

DK40i/DK424 Universal Slot PCBs
PDKU2 Digital Telephone Interface Unit
7-8Strata DK I&M    5/99
PEKU
Electronic Telephone Interface Unit
System:DK40i Expansion KSU, DK424
Circuits per PCB:eight electronic telephone circuits
Interfaces with:electronic telephones
HDSS console (circuits 7 and 8 only–each console requires two circuits)
alternate BGM source (circuit 3 only)
EOCU PCB for OCA
external conference amplifier (circuits 2 and 3 only–ports 09 and 10, 17 and 18, 25 and 
26, 33 and 34–each amplifier...

DK40i/DK424 Universal Slot PCBs
PDKU2 Digital Telephone Interface Unit
Strata DK I&M    5/997-9
DK40i/DK424 Universal 
Slot PCBsPEKU Configuration to Support Door Phone/Lock Control Unit (HDCB)
1. Cut the W9 Door Phone jumper wire on the PEKU PCB.
2. Refer to “Door Phone (MDFB)” on Page 9-22 for HDCB, associated Door Phones (MDFBs) 
and door lock control installation procedures. Only circuit 5 of a PEKU associated with ports 
004, 012, 020, and 028 can support HDCBs.
PEKU Configuration to Support...

DK40i/DK424 Universal Slot PCBs
PDKU2 Digital Telephone Interface Unit
7-10Strata DK I&M    5/99
Table 7-2 PEKU Controls, Indicators, and Connectors
Control/Indicator/ConnectorType of ComponentDescription
Off-hook call announce P10
10-pin connectorInterface connector for optional Off-hook Call 
Announce subassembly connector (used with 
P20, P40, P50, and P60).
Off-hook call announce P20 Used with P10, P40, P50, and P60.
Off-hook call announce P40 Used with P10, P20, P50, and P60.
Off-hook call announce...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
Strata DK I&M    5/997-11
DK40i/DK424 Universal 
Slot PCBsPEPU2
External Page Interface Unit
System:DK40i Expansion KSU, DK424
Circuits per PCB:(see interfaces)
Interfaces with:built-in paging amplifier or page speaker
door lock control
external amplifier control
external paging 600 ohm (duplex) interface (one zone)
MOH control
night relay control
Older Version(s):none
The PEPU is similar to the PIOU2 and PIOUS2, but supports fewer...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
7-12Strata DK I&M    5/99
 
 
Table 7-3 PEPU Controls, Indicators, and Connectors
Control/Indicator/ConnectorType of ComponentDescription
M/B make/break jumper plug P10
3-terminal jumper plugExternal page/door lock control relay make or 
break jumper plug.
M/B make/break jumper plug P11 Night/hold relay make or break jumper plug.
SPI/SPO internal/external 
amplifier switch SW42-position slide switchSelects built-in 3-watt amplifier (SPI)...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
Strata DK I&M    5/997-13
DK40i/DK424 Universal 
Slot PCBsPESU
Standard/Electronic Telephone Interface Unit
System:DK40i Expansion KSU, DK424
Circuits per PCB:two standard telephone or two-wire device circuits (circuits 1,2)/
four electronic telephone circuits (circuits 5~8)
Interfaces with:standard telephone circuits
standard telephones
voice mail ports
off-premises stations
alternate BGM source
auto attendant digital announcer...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
7-14Strata DK I&M    5/99
4. See “PDIU-DI Installation into 1000-series Digital Telephone” on Page 9-9 for procedures to 
add required speaker OCA upgrade to electronic telephones.
External Options
NoteRefer to Chapter 9 – Station Apparatus to connect electronic telephones (including the 
following upgrades: HVSU2 or HVSU/HVSI for Off-hook Call Announce and HHEU for 
headset and/or Loud Ringing Bell interface), standard telephones, and...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
Strata DK I&M    5/997-15
DK40i/DK424 Universal 
Slot PCBsPESU Programming
Enter Code 25 in Program 03 for a non-optioned PESU or Code 26 for a PESU supporting Off-
hook Call Announce. To program the PESU standard telephone ports, see “PESU Programming” 
on Page 7-15. To program the PESU electronic telephone ports, see “PESU Programming” on 
Page 7-15. If there are no PESU options, skip Program 03 and run Program 91 instead. 
Table 7-4...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
7-16Strata DK I&M    5/99
Up
PESU
P60
P50 P40
W9
P10
P20
ESTS
P70 P80Optional
EOCU, Equip.
for OCA
Feature
Backplane 
Connector
ESTS:  Standard Telephone
Interface, Always Equipped
From Factory Ring Voltage Option (Ports 1 & 2):
L = Low Level (130V P-P)
H = High Level (190V P-P) 50-Pin 
Amphenol
Connector
(Female)
P90 LH
Note   
Connect two ringers maximum per port (H or L).
Cut W9 for 
Door Phone
Option (HDCB
on Circuit 5)
PESU
W7Cut W7...