Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

							Peripheral Installation
External Speaker Unit (HESB) Options
Strata DK I&M    5/9910-19
Peripheral Installation
External Speaker Unit (HESB) Options
Strata DK systems provide three options utilizing an HESB:
©Loud Ringing Bell
©Amplified Speaker
©Talkback Amplified Speaker
System hardware requirements vary depending on the HESB option selected. See the following 
installation procedures for the hardware requirements for each option.
Loud Ringing Bell Option
The loud ringing bell option enables the voice first or ringing signal tone to be amplified without 
the use of other manufacturers’ equipment. The voice first and signal tone can be amplified on all 
electronic and digital telephones equipped with HHEU PCBs and HESB. (See Chapter 9 – Station 
Apparatus.) 
The HESB automatically turns OFF once the ringing call or voice first has been manually 
answered from the electronic or digital telephone. This turn-off feature prevents audio feedback 
problems.
Installing the HESB Loud Ringing Bell in Digital Telephones
1. Connect a jumper between terminals 2 and 10 on the HESB TB1 terminal block (Figure 
10-11).
2. Connect a jumper between terminals 4 and 5 on the HESB TB2 terminal block.
3. Install an HHEU PCB and HESC-65A cable in the telephone per Chapter 9 – Station 
Apparatus before proceeding with Step 4.
NoteHESB connections made in Steps 4~6 can be accomplished using the HESB VOICE 
modular jack instead of the TB1 terminal block.
4. Connect terminal 1 of the HESB TB1 terminal block to the red (+) wire of the HESC-65A 
using a modular block.
5. Connect terminal 2 of the HESB TB1 terminal block to the green (-) wire of the HESC-65A 
using a modular block.
6. Connect terminal 8 of the HESB TB1 terminal block to the yellow (L2) wire of the HESC-65A 
cable using a modular block.
7. Connect the HACU-120 power supply’s +12V lead to terminal 1 of the HESB TB2 terminal 
block, and connect the power supply’s 0V lead to terminal 2.
8. Plug the provided power cord into the power supply and to a 115VAC ± 10VAC, 60Hz power 
source.
Important!If AC voltage is not within range, have a qualified electrician correct the problem. 
						

							Peripheral Installation
External Speaker Unit (HESB) Options
10-20Strata DK I&M    5/99
Important!See Chapter 9 – Station Apparatus for instructions to cut EXSP and HHEU jumpers 
on the electronic telephone main PCB.
Figure 10-11 HESB/Digital Telephone with Loud Ringing Bell Wiring
(-)
+
(+)
(-)
(L2)
(+)
1000 or 2000 Series
Digital Telephone
4302
25-Pair
CableJacketed
Twisted Pair
24 AWG HACU-120
115VAC to
12 VDC 115 VAC
Tip
Ring
PT
PRStation Cabling MDF
66 BlockPower
Supply
P601
HHEU 
(V.3 or .4) Modular
StationHESC-65A
Cable
Green
Yellow
RedOCA
Strap
R607Do Not
Cut 6 5 4 3 2 1
Not Used6 5 4 3 2 1
Not Used
Voice Door Phone
12345TB2 12V 0V
12V 0V24 AWG
Jacketed
Twisted Pair
from
Digital
Telephone
to HESB Jumpers
GN
Y
BL R
BK
WGN
Y
BL R
BK
W(L2)
654321
123456 654321
123456TB1 (L2)
Jumper Wires:
TB1
2-10TB2
4-5HESB (Rear View)
Internal Wiring:Volume Control
TBI
1
2
3
4Voice
6
1
3
4(+)
(-)
12345678910
DK14 & DK40i 
KSU or PDKU
(CKT 1~8)
or
RDSU
(CKT 5-8)
± 10 VAC 
maximum
Install HHEU Circuit (V.3 or .4) or HHEU2 card into 
base of DKT per HHEU installation information in 
Chapter 9 – Station Apparatus 
						

							Peripheral Installation
External Speaker Unit (HESB) Options
Strata DK I&M    5/9910-21
Peripheral Installation
Installing the HESB Loud Ringing Bell in Electronic Telephones (DK40i and DK424 Only)
1. On the HESB TB1 terminal block: connect a jumper between terminals 6 and 7, and connect 
another jumper between terminals 5 and 8 (see Figure 10-12).
2. On the HESB TB2 terminal block, connect a jumper between terminals 4 and 5.
3.Install an HHEU PCB and HESC-65A (or HESC-65A) cable in the telephone per Chapter 9 – 
Station Apparatus before proceeding with Step 4.
NoteHESB connections made in Steps 4~7 can be made with the HESB VOICE modular jack 
instead of the TB1 terminal block.
4. Connect terminal 1 of the HESB TB1 terminal block to the red (+) wire of the HESC-65 cable 
using a modular block.
5. Connect terminal 2 of the HESB TB1 terminal block to the green (-) wire of the HESC-65 
cable using a modular block.
6. Connect terminal 3 of the HESB TB1 terminal block to pin 3 of the electronic telephone’s 
modular block (VOICE TIP).
7. Connect terminal 4 of the HESB TB1 terminal block to pin 4 of the electronic telephone’s 
modular block (VOICE RING).
8. Connect the HACU-120 power supply’s +12V lead to terminal 1 of the HESB TB2 terminal 
block, and connect the power supply’s 0V lead to terminal 2.
9. Plug power cord into the power supply and to a 115VAC ± 10VAC, 60Hz power source.
Important!
lMake sure the AC power is within the specified limits shown in Step 9. If AC voltage is not 
within range, have a qualified electrician correct the problem.
lCut the EX-SP and HHEU straps on telephones and do not cut the OCA strap or R607 on the 
HHEU (see Chapter 9 for details).
Testing the Loud Ringing Bell Option
1. Test the AC input voltage. See Step 9, above.
2. Make a CO or station call to the station configured for the loud ringing bell. Ringing will be 
heard over the HESB.
3. Use a small, slotted screwdriver to turn the volume control on the back of the HESB to the 
desired level and adjust the ring volume control on the telephone.
4. If ringing is heard at the station, but not over the HESB, check the following while the station 
is ringing:
©Using a suitable voltmeter, measure voltage across terminals 1 (+) and 2 (-) of the HESB 
TB1 terminal block. Voltage indication should be 4.5~5VDC.
NoteRinging stops once the call is manually answered. There should be NO voltage potential 
across terminals 1 and 2.
©If voltage is not as specified during ringing, check that the telephone wiring connections to 
the HESB have been made properly (wires to terminals 1 and 2 of the HESB TB1 terminal 
block may have been reversed). 
						

							Peripheral Installation
External Speaker Unit (HESB) Options
10-22Strata DK I&M    5/99
Important!See Chapter 9 – Station Apparatus for instructions to cut EXSP and HHEU jumpers 
on the electronic telephone main PCB.
Figure 10-12  HESB/Electronic Telephone with Loud Ringing Bell Wiring
Amplified Speaker Option
The amplified speaker option enables the HESB to be configured as a paging speaker. The HESB 
is connected to the PIOU, PIOUS, or PEPU 600-ohm page output to provide an amplified external 
speaker.
äTo install the HESB amplified speaker option
1. Connect a jumper between terminals 1 and 2 of the HESB TB1 terminal block (see Figure 
10-13). 
2. Connect a jumper between terminals 6 and 7 of the HESB TB1 terminal block.
Jumper Wires:
12345678910TB1 VOICE Tip
VOICE Ring
6 5 4 3 2 1 6 5 4 3 2 1
Not Used
Voice Door Phone
Modular
Connectors
May Be Used TB1
5-8
6-7TB2
4-5
HACU-120
115VAC to
12VDC
12345TB2 12V 0V
12V 0V 115VAC
± 10VAC
maximum24 AWG
Jacketed
Twisted Pair
from
Electronic
Telephone
to HESB HESB (Rear View)
Voice Tip
Voice Ring
(-)
GN
654321Y
BL R
BK
W
123456GN
654321Y
BLR
BK
W
123456OCA
Ring
3
2
1
P601
HHEU Voice Tip
Voice Ring
Data T1
Data R1
OCA
Tip 25-Pair
CableStation Cabling MDF
66 Block
Jacketed
Twisted Pair
24 AWG
Modular
CordStation
Electronic
Telephone
6500-Series Power
SupplyJumpers
Jacketed Internal Wiring:
TBI
1
2
3
4Voice
6
1
3
4
(-)
(+) (+)  (Red)
(-)  (Green)
(+)
Green
RedHESC-65 or
HESC-65A 
Cable
OCA
Strap
R607Do Not
Cut
1513
Volume Control
PEKU
(CKT 1~8)
or
PESU
(CKT 5~8)
Install HHEU Circuit (V.3 or .4) or HHEU2 card 
into base of DKT per HHEU installation 
information in Chapter 9 – Station Apparatus 
						

							Peripheral Installation
External Speaker Unit (HESB) Options
Strata DK I&M    5/9910-23
Peripheral Installation
3. Connect a jumper between terminals 5 and 8 of the HESB TB1 terminal block.
4. Connect a jumper between terminals 3 and 4 of the HESB TB2 terminal block.
5. Connect a jumper between terminals 5 and 6 of the HESB TB2 terminal block. 
6. If using a PIOU or PEPU, connect the PIOU or PEPU 600-ohm page output (pins 13 and 38) 
to terminals 3 and 4 of the HESB TB1 terminal block.
...or
Connect the PIOUS, DK14 or DK40i KSU 600-ohm page output (SPT and SPR) to terminals 3 
and 4 of the HESB TB1 terminal block.
7.Connect the power supply’s +12V lead to terminal 1 of the HESB TB2 terminal block, and 
connect the 0V lead to terminal 2.
8. Plug the provided power cord into the power supply and to a 115VAC ± 10VAC, 60Hz power 
source.
9. Set the PIOU or PEPU SW4 switch to the SPO position.
Important!If AC voltage is not within range, have a qualified electrician correct the problem.
ä
To test the amplified speaker option
1. Make an external page. The page should be heard over the HESB.
2. Adjust the HESB volume control to the desired level.
Figure 10-13 HESB/Amplified Speaker Wiring
50
Jumper Wires:PIOU or PEPU
600W
 Page
Output
MDF
66 BlockBlock
Pin NO.s
1
25
26 SPT (38, BK-GN)
SPR (13, GN-BK)
25-Pair CableJacketed
Twisted
Pair
24 AWG PIOUS
SPT
SPRMDF
600W
 Page
OutputTB1 DK14 & DK40i KSU
BGM
RCA JackMDF
TB1
1-2
5-8
6-7TB2
3-4
5-6Modular
Connector
May Be UsedVolume Control
TBI
3
4Voice
3
4 Internal Wiring:6 5 4 3 2 1 6 5 4 3 2 1
Not Used
Voice
12V 0V
Note
• The 600 ohm page output sends 
three types of signals during 
system operation:
•  Voice page
•  Background music
•  Night ringing
12345678910TB1
Door Phone
123456TB2
HESB (Rear View) 12V
VDC0V
Jumpers
4303
115 VAC (± 10 VAC) to 12 VDC Note 
Only one interface PCB
(PIOU, PIOUS, or PEPU) 
may provide amplified
speaker output.
Power
Supply 
						

							Peripheral Installation
External Speaker Unit (HESB) Options
10-24Strata DK I&M    5/99
Talkback Amplified Speaker Option
The talkback amplified speaker option enables a talkback speaker to be provided in areas where a 
telephone is not needed. In this configuration, the HESB is connected to the PIOU, PIOUS, or 
PEPU 600 ohm (duplex) output and is used as the amplifier and speaker. 
A door phone unit (MDFB) is connected to the HESB, and serves as a microphone to provide 
talkback operation. (The MDFB push-button is inoperative, and the unit serves only as a 
microphone for talkback and not as the normal door phone.)
NoteThe PIOU, PIOUS, and PEPU 600 ohm is a two-way (duplex) page output compatible 
with most commercially available talkback amplifiers – door phone not required for 
talkback.
ä
To install the HESB talkback amplified speaker
1. Connect a jumper between terminals 1 and 2 of the HESB TB1 terminal block (see Figure 
10-14).
2. Connect a jumper between terminals 3 and 4 of the HESB TB2 terminal block.
3. Connect a jumper between terminals 5 and 6 of the HESB TB2 terminal block.
NoteHESB connections made in Steps 4~7 may be accomplished using the HESB VOICE and 
door phone modular jack instead of the TB1 terminal block.
4. Connect terminal 7 of the HESB TB1 terminal block to Pin L1 of the MDFB.
5. Connect terminal 8 of the HESB TB1 terminal block to Pin L2 of the MDFB
6. Connect terminal 9 of the HESB TB1 terminal block to Pin 1 of the MDFB.
7. Connect terminal 10 of the HESB TB1 terminal block to Pin 2 of the MDFB.
8. If using a PIOU or PEPU, connect the PIOU or PEPU 600-ohm page output (pins 13 and 38) 
to terminals 3 and 4 of the HESB TB1 terminal block.
...or
If using a PIOUS, connect the PIOUS 600-ohm page output (SPT and SPR) to terminals 3 and 
4 of the HESB TB1 terminal block.
9. Set the PIOU or PEPU SW4 switch to the SPO position.
10. Connect the HACU-120’s +12V lead to terminal 1 of the HESB TB2 terminal block, and 
connect the 0V lead to terminal 2.
11. Plug the provided power cord into the power supply and to a 117VAC 60Hz power source.
Important!If AC voltage is not within range, have a qualified electrician correct the problem.
äTo test the talkback amplified speaker
1. Make an external page. Page will be heard over the HESB.
2. Verify that someone speaking into the door phone can be heard at the paging station. (With this 
application, pressing the door phone button is not required to talk back through the door 
phone.) 
						

							Peripheral Installation
External Speaker Unit (HESB) Options
Strata DK I&M    5/9910-25
Peripheral Installation
Figure 10-14 HESB/Talkback Amplified Speaker Wiring
MDF
DK14 & DK40i KSU 
BGM
RCA JackMDF
123456
12V 0V
HESB (Rear View)
115VAC ± 10VAC to 12VDC
Door Phone Internal Wiring:
TBI
4
3
TBI
7
8
9
10Voice
4
3
4
3
2
5
HACU-120 Notes 
• The 600 ohm duplex page output is 
compatible with most 
commercially available talkback 
amplifiers. – MDFB not required.
• Only one interface PCB (PIOU, 
PIOUS, or PEPU)  may provide 
talkback amplified speaker.
Jumpers Voice Door Phone
12V 0V
TB2 12345678910TB1
6 5 4 3 2 1 6 5 4 3 2 1 Modular
Connector
May Be Used PIOU or
PEPU
600W
Page
Output
MDF
66 Block1
25
26 SPT (38, BK-GN)
SPR (13, GN-BK)
25 Pair Cable
12 L1 L2 Volume Control
Jumper Wires:
TB1
1-2TB2
3-4
5-6Jacketed
Twisted Pair
24 AWG MDF Block
Pin Numbers Duplex
SPR 600W
 Page
OutputJacketed
Twisted
Pair
24 AWG MDFB (Rear View)
1 2 L1 L2 Door Phone
Talkback
Microphone
PIOUS
SPT TB1
4304
Power
Converter 
						

							Peripheral Installation
External Page Options
10-26Strata DK I&M    5/99
HESB Wall Mounting
Some applications may require that the HESB is mounted on a wall or other vertical surface. 
ä
To wall mount the HESB
1. Find a suitable location on the mounting 
surface for the HESB (see Figure 10-15).
2. Screw a 1.25-inch panhead wood screw 
into the mounting surface.
3. Hang the HESB from the screw.
External Page Options
Strata DK systems equipped with a PIOU, PIOUS, or PEPU PCB offer a variety of external paging 
options, each of which includes a BGM option. The PIOU, PIOUS, or PEPU PCB with the lowest 
Program 03 code (41, 42, or 43) is required to support these options:
©Paging with BGM (same amplifier) – available with PIOU, PIOUS, or PEPU
©Zone Paging with BGM (separate amplifiers) – available with PIOU
©Zone Paging with BGM (multiple amplifiers) – available with PIOU
External Page Option Installation
All paging connections are made via the PIOU or PEPU Amphenol connectors or the PIOUS TB1 
terminal to the Main Distribution Frame (MDF).
Paging (Single-zone) with BGM (Same Amplifier)
Paging and BGM are amplified by a common customer-supplied paging amplifier. When the 
external page access code is dialed, the external page control relay is activated, which applies a 
short (or opens the contacts) to the amplifier mute control to mute the music. 
äTo install External Page (single zone) with BGM (same amplifier)
1. Connect input 1 from the paging amplifier to pins 13 (SPR) and 38 (SPT) of the PIOU or 
PEPU; or connect to SPT and SPR of the PIOUS (see Figure 10-17).
2. Connect the paging amplifier mute terminal to pins 7 and 32 of the PIOU or PEPU; or connect 
to DET and DER of the PIOUS.
3. Connect the music source to input 2 of the paging amplifier.
4. Connect the speaker to the paging amplifier output.
5. Verify that the PIOU or PEPU P10 jumper plug is in the MAKE position or that the PIOUS 
W1 jumper wire is in the MAKE position.
One Wall
Mounting
Hole
1516
Figure 10-15 HESB Wall Mounting 
						

							Peripheral Installation
External Page Options
Strata DK I&M    5/9910-27
Peripheral Installation
Figure 10-16 DK424 Page and BGM Using the Same Amplifier (PIOU/PIOUS/PEPU)
1517
External Page/
Door Lock Relay
(See Program 77-1) Night Ring
and Page
from KSU 
Backplane600W
DET (32)SPT (38)
2625
13
Input 1
Output
External
Paging Amp
M
14
BGM
Music
Source Mute 2
Input 2 B
P10 PIOU/PEPU
PIOU/PEPU Pin
Numbers
25-Pair CableSPR (13)
DER (7)66 Block
Pin Numbers
MDF
External Page/
Door Lock Relay
(See Program 77-1) Night Ring
and Page
from KSU 
Backplane600W
DET SPT 
Input 1
Output
External
Paging Amp
BGM
Music
Source Mute 2
Input 2 P10 PIOUS
SPR
DERMDF
W1
K1
Break
Make KSU Backplane
TB1
600 
DE
Note
The PIOU/PIOUS/PEPU PCB with the lowest Program 03 code 
(41, 42, or 43) will provide External Page options. 
						

							Peripheral Installation
External Page Options
10-28Strata DK I&M    5/99
Zone Paging with BGM (Separate Amplifiers)
Provides multiple-zone paging capability. The output of the paging amplifier is routed back to the 
PIOU, where it is switched to one of four sets of speakers by PIOU Relays K1 through K4. The 
relay selected is determined by the access code dialed by the station user. Default access codes are:
NoteMulti-zone page output rating is 30W/maximum at 300 ohms. Zones 5~8 (LCD display 
E~F) for a second PIOU installed when using an RCTUE3/F3 processor only (see Figure 
10-6).
An all zone page code (
) is also available as an option (see Program 10-2). When the All Page 
code is dialed, all four or eight relays are activated to permit simultaneous paging to all speaker 
zones and all digital and electronic telephone speakers. 
ä
To install the page and background music features on the same amplifier
1. Connect the input from the paging amplifier to pins 13 (SPR) and 38 (SPT) of the PIOU (see 
Figure 10-17).
2. Connect the BGM music source to the music amplifier input.
3.Connect the paging amplifier output to the “M” contact’s PIOU relays K1~K4 and the “C” 
terminal of zone 1 through zone 4 or zone 5 through zone 8 speakers.
4. Connect the BGM music amplifier output to terminal 23 (PG COMMON) of the PIOU, and to 
“C” of zone 1 through zone 4 or zone 5 through zone 8 speakers.
PIOU Relay Access Codes DKT LCD Display
K1/zone 1 =  or  K1/zone 5 = External Paging A or E
K2/zone 2 =  or  K2/zone 6 = External Paging B or F
K3/zone 3 =  or  K3/zone 7 = External Paging C or G
K4/zone 4 =  or  K4/zone 8 = External Paging D or H
See Program 90 in the 
Strata DK Programming Manual.EXT + ALL CALL PAGE or RCTUE/F