Toshiba Perception E Ex Digital Pbx Installation And Maintenance Manual

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-201 
FEBRUARY1992 
NDCU-Data Control Unit 
NDKU-Digital Telephone, Digital DSS, PDIU-DI, 
PDIU-DS Unit 
NDSU-DSS Console Controller Unit (Electronic 
Telephone) 
NDTU-Digital Trunk Unit 
NEKU-Electronic Telephone Unit 
NEMU-E & M TIE Trunk Unit 
NFDU-Floppy Disk Drive Unit 
NLSU-DID Trunk Interface Unit 
NMDU-Modem Pooling Unit 
NOCU-Off-hook Call Announce Interface Unit 
NPRU-Paging and Music-on-Hold Unit 
NPSA-M-PERCEPTlONe Main Power Supply 
NPSA-S-PERCEPTIONehex Expansion Power 
SUPPlY 
NRCU--Receiver Unit 
NSTU-Standard Telephone Unit 
NTWU-Time Switch Unit 
PCB-Printed Circuit Board 
PDIU-DI-Integrated Data Interface Unit (Digital 
Telephone) 
PDIU-DB-Stand-alone Data Interface Unit (Key- 
board Dial) TTY-Teletypewriter 
UNA-Universal Night Answer 
5. INSPECTION, 
PACKING and STORAGE 
5.00 Inspection 
5.01 
When the system is received, examine all 
packages and make careful note of any visible 
damage. If any damage is found, bring it to the 
attention of the delivery carrier and make the proper 
claims. 
5.02 Check the system against the purchase order 
and packing slip. If it is determined that equipment 
is missing, contact your supplier immediately. 
5.03 After unpacking (and before installing), in- 
spect all equipment for damage. If any is detected, 
contact your supplier immediately. 
CAUTION! 
When handling (installing, removing, ex- 
amining, etc.) prin ted circuit boards (PCBs), 
do not touch the back (soldered) side or 
edge connector. Always hold the PCB by 
its edge whenever handling it. 
5.10 Packing and Storage 
5.11 When storing or shipping PCBs, be sure they 
are packed in their original antistatic bags for pro- 
tection against static discharge. 
5.20 Required Tools 
5.21 Installation of the PERCEPTIONeLe, systems 
requires standard telephony tools. A 13mm socket 
wrench and extension is recommended for ease of 
expansion cabinet installation. 
PFT-Power Fail Transfer 
SMDR-Station Message Detail Recording 
1-2  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-202 
FEBRUARY 1992 
CHAPTER 2 
SYSTEM DESCRIPTION 
1. PERCEPTION, 
1.00 Basic Equipment Cabinet 
1 .Ol 
The basic equipment cabinet (NCEC-M) con- 
sists of a single, free-standing cabinet mounted on 
casters for easy movement. Once system installa- 
tion has been completed and the cabinet has been 
positioned, the casters can be locked to prevent 
movement. The interior of the cabinet houses two 
shelves for printed circuit card installation. A sepa- 
rate area is provided for installation of the power 
supply and peak load battery. MDF connections 
are facilitated by amphenol connectors located on 
the rear of the cabinet (Figure 2-l). 
FIGURE 2-I-PERCEPTION, BASIC CABINET 
1 .I0 Expansion Cabinet 
1 .I 1 
The expansion cabinet (NCEC-S) is a single 
cabinet that mounts on top of the basic cabinet and 
is secured in place with four bolts. The cabinet 
houses two shelves for printed circuit card installa- 
tion. MDF connections are facilitated by amphenol 
connectors located on the rear of the cabinet (Fig- 
ure 2-2). 
1.20 Power Supply 
1.21 
The Main Power Supply (NPSA-M) consists 2.11 The expansion cabinet (LCEC-S) is a single 
of a single metal chassis. In addition to the power cabinet that houses a single printed circuit card 
TOSHISA 
Perception, 
FIGURE P-2-PERCEPTION, EXPAWIUN LABINt I 
supply, this chassis contains the system ring gen- 
erator and a charger/inverter for Reserve Power. 
Located on the front of the chassis are a circuit 
breaker and LED indicator for each power supply 
output, and an AC power indicator, and the system 
power switch. The battery switch is also on the front 
of the NPSA-M. 
2. PERCEPTIONex 
2.00 Basic Equipment Cabinet 
2.01 The basic equipment cabinet (LCEC-M) is a 
single free-standing cabinet mounted on casters 
for easy movement. The cabinet contains three 
shelves for printed circuit card installation. A sepa- 
rate area is provided for power supply and peak 
load battery installation. MDF connections are fa- 
cilitated by amphenol connectors located on the 
rear of the cabinet (Figure 2-3). 
2.10 Expansion Cabinet 
2-1  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-202 
FEBRUARY1992 
FIGURE 
P-3-PERCEPTION, BASIC CABINET 
shelf. MDF connections are facilitated by amphe- 
nol connectors located on the rear of the cabinet 
(Figure Z-4). Up to two expansion cabinets may be 
added to the PERCEPTlONe, basic equipment 
cabinet. 
2.20 Power Supply 
2.21 
The Main Power Supply (LPSA-M) consists 
of a single metal chassis which contains the system 
ring generator and charger/inver&er for the Reserve 
Power. A circuit breaker switch, LED indicators, AC 
power indicator and system power switch are lo- 
cated on the front of the chassis. For ease in 
installation a handle is located at the top front of the 
power supply (Figure 2-5). 
3. PEAK LOAD BAl-rERY 
3.00 The peak load battery will maintain call proc- 
essing for a maximum of two minutes in the event 
the PERCEPTlONe or PERCEPTlONe, experi- 
ences a power failure. Additionally, when the sys- 
tem is under heavy usage the peak load battery will 
FIGURE P-4-PERCEP 
-.-..-m - - -a-----.-.. 
HtiUHE 24+PtRCtP I IUNeX 
MAIN POWER SUPPLY 
2-2  
						

							avoid power degradation by supplementing the -24 
volts, maintaining a constant power level. 
4. EXTENDED RESERVE POWER 
4.00 The power supply is equipped, as a standard 
feature, with an internal battery chargemnverter. 
Full reserve power can be provided for any system 
by connecting an appropriate, customer-supplied 
24-volt battery pack. During normal operation, the 
power supply chargemnverter will maintain the 
proper charge in the battery pack. In the event of an 
AC power failure, switchover to battery power will 
be automatic. There will be no loss of system 
operation as a result of power switchover. When 
AC power is restored, switchback to the power 
supply will be automatic. 
4.01 Battery selection and size will depend on 
system size and desired reserve operating time. 
The maximum power consumption of the basic 
cabinet is 11.5 amps at -24 VDC. For both a basic 
and expansion cabinet configuration, the maxi- 
mum will be 19 amps at -24 VDC. The selected 
batteries must be compatible with the system’s 
charger float voltage of 27.3 VDC. 
INSTALLATION INSTRUCTIONS 
SECTION 200-255-202 
FEBRUARY1992 
5. POWER FAILURE/EMERGENCY TRANSFER 
5.00 The function of the Power Failure/Emergency 
Transfer Unit (DPFT) is to automatically connect 
selected trunks to selected standard telephones in 
the event of system failure while permitting normal 
operation when the system is in service (maximum 
of 1 per cabinet). 
5.01 The DPFT is a self-contained module that 
mounts externally to the basic cabinet, typically on 
the MDF. Connections to the trunks, stations and 
basic cabinet are made via two 50-pin amphenol- 
type connectors (Jl and J2) on the DPFT (see 
functional diagram in Figure 2-6). 
5.02 The module consists of eight relays that are 
normally operated, connecting the telephones to 
NSTU circuits and the trunks to NCOU circuits. If a 
power failure (or other emergency) occurs, the 
relays release, connecting the telephones directly 
to the trunks. Calls can then be placed from the 
telephones over the CO trunks, bypassing the 
system (which is out of service). 
5.03 Power Fail Transfer (PFT) telephones con- 
I J2 
NCOU 
CO LINE I 
I 
TELEPHONE  TELEPHONE 
Notes: 1. One of eight DPFT circuits.  Notes: 1. One of eight DPFT circuits. 
2. Conditions of AC power on.  2. Conditions of AC power on. 
FIGURE Z-6-DPFT FUNCTIONAL DIAGRAM  FIGURE Z-6-DPFT FUNCTIONAL DIAGRAM 
2-3  2-3 
C INDICATING  C INDICATING 
WER ON  WER ON  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-202 
FEBRUARY 1992 
netted to ground-start trunks must have ground 
taps (tap buttons) in order to make outgoing calls 
during power fail transfer conditions. 
5.04 A transfer can be caused by a loss of power 
or triggered manually by either of two buttons, one 
of which is located on the underside of the atten- 
dant console and the other on the front of the NPRU 
PCB. A transfer that is caused by a power failure 
will be reset automatically when power is restored; 
a manual transfer must be reset manually. 
5.05 When the DPFT is reset after a transfer, 
existing PFT conversations will be protected. Indi- 
vidual circuits will be restored only when they 
become idle. 
6. PRINTED CIRCUIT BOARD DESCRIPTION 
6.00 Sixteen different types of PCBs are available 
for use in both PERCEPTION systems (Figures 2- 
7 & 2-8). The universal port architecture enables 
multiple installation of trunk cards. The 
PERCEPTlONe can support a maximum of 16 
trunk cards; 8 in the basic cabinet, and 8 in the 
expansion cabinet. The PERCEPTIONex can 
support a maximum of 32 trunk cards; 24 in the 
basic cabinet, and 8 in each expansion cabinet. 
NFDU (Floppy Disk Drive Unit)-One or two per 
system: This card houses a 3.5 inch, 1.2 Mbyte 
disk drive. One disk contains system program 
and customer data. The second disk stores the 
Maintenance and Administration programs. (Two 
NFDUs are required in D.02 and later version 
software using Remote Maintenance.) 
LCCU (Central Control Unit)-One per system: 
The LCCU card contains the circuitry which, 
under the direction of the system program, pro- 
vides centralized control for the entire system. 
Additionally, the LCCU performs data transmis- 
sion and receiving functions between the central 
control and all peripheral equipment, including: 
l Station PCBs 
l Trunk PCBs 
0 TTY interface 
l SMDR interface 
l Lodging/Health Care audit interface 
STATION, DATA, 
TRUNK, DSS, OR 
OCA CARDS ONLY 
STATION, DATA, 
TRUNK, DSS, OR 
OCA CARDS ONLY 
FIGURE P-7sPERCEPTION, PC6 INSTALLATION 
l Modem interface 
This circuitry consists of a 16-bit 8OC88 main 
processor, an 8-bit Z-80 secondary processor, 
and 1 Mbyte of memory. 
NTWU (Time Switch Unit)-One per system: This 
card performs the time slot interchange function 
for call processing and the conference features, 
provides the digital speech paths with digital 
padding, timing and control for time slot switch- 
ing and generates system tones. 
2-4  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-202 
JANUARY1993 
w.iu~t Z-I+PERCEPTION, PCB INSTALLATION 
NPRU (Paging and Music-on-hold Unit)-Houses 
program load and initialization control switches 
and performs several miscellaneous functions 
(up to two per system): 
l Paging interface and control 
l Music-on-hold interface 
l UNA control 
l Interface for the NRCU 
* Attendant Console Functions 
l Power Failure/Emergency transfer control 
l Digitized voice message for Automatic Wake- 
up (optional) 
NRCU (Receiver Unit)-Two per NPRU (4 per 
system maximum): This card provides DTMF 
receivers, which are required for receiving tone 
dialing from standard telephone ports (including 
voice mail ports) and some incoming trunk (DID, 
TIE and CCSA) types. It also provides the capa- 
bility for remote access to service. It mounts 
piggy-back on the NPRU PCB, where there is 
available space for two NRCUs. Each NRCU 
provides four DTMF receiver circuits, with a 
system maximum of 16. 
NOTE: 
When using the Call Forward-No Answer to 
Trunk feature, an NRCU MUSTbe installed in 
the system. 
NEKU (Electronic Telephone Unit)-One per 
eight electronic telephones: Interfaces electronic 
telephone to the system. It also serves as an 
attendant console interface. Each attendant con- 
sole requires one electronic telephone circuit. 
PERCEPTION, 
ATT #O-PCB position LOO circuit #1 
ATT #1 -PCB position L15 circuit #l 
A maximum of 12 NEKU/NDKU PCBs may be 
installed in each cabinet (24 NEKU/NDKU PCBs 
maximum per system). 
PERCEPTION, 
ATT #O-PCB position UOO circuit #1 
AIT #l -PCB position UOl circuit #l 
A maximum of 16 NEKU/NDKU PCBs can be 
installed in the PERCEPTIONex basic cabinet, 
and eight in each expansion cabinet. 
NDKU (Digital Telephone Unit)-A 2B+D archi- 
tecture is used to interface up to 8 or 16 circuits 
for the Digital Telephone and Integrated Data 
Interface Unit (PDIU-DI), Stand-alone Data In- 
terface Unit (PDIU-DS), or Digital Direct Station 
Selection Console. Digital telephones and digital 
DSS consoles cannot be interfaced to the same 
NDKU PCB. Four configuration options are 
switch-selectable as follows: 
1) Option 1: Eight digital telephones only. 
2-5  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-202 
JANUARY 1993 
2) 
3) 
4) Option 2: Eight digital telephones with 
integrated Data Interface Unit (PDIU-DI) 
or Off-hook Call Announce. This position 
also supports Stand-alone Data Inter- 
face Units (PDIU-DS). 
Option 3: Four digital DSS consoles. In 
PERCEPTION, COO and CO1 may be 
used for this option only. 
Option 4: Eight digital DSS consoles. 
NOTE: 
When using Option 
2 or 4, the next highest 
number adjacent card slot cannot be used. 
For example: If an NDKU is installed in LO1 or 
UO 7, the card slot LO2 or UOZ respective/y, 
must be left vacant. 
NSTU (Standard Telephone Unit)-Interfaces 
eight standard telephones (DTMF or rotary dial) 
to the system. 
NDSU (DSS Console Controller Unit)-Interfaces 
four DSS consoles to the system. The NDSU is 
installed in the COO or COI, or any line slot for 
PERCEPTION,; or in any universal slot for 
PERCEPTIONex. A maximum of two NDSU 
PCBs are allowed per system, and both can be 
installed in the same cabinet. 
NDCU (Data Control Unit)-Interfaces eight Digi- 
tal Data Interface Units (DDIUs) to the system. 
The NDCU controls data transmission between 
the DDIU and the cabinet. A maximum of four 
NDCU PCBs may be installed in each 
PERCEPTlONe cabinet. In the PERCEPTIONex, 
four PCBs per shelf can be installed. 
NMDU (Modem Pooling Unit)-Interfaces up to 
four modems and their associated DDIU-MAs. 
Any of the four DDIU circuits not required by a 
modem can be used with a standard DDIU (-MA 
or -MAT). A maximum of four NMDU PCBs may 
be installed in each PERCEPTlONe cabinet. In 
the PERCEPTIONex, four PCBscan be installed 
per shelf. 
NOTE: 
The system maximum of NDCU or NMDU 
PCBs consists of any combination of the two PCBs totaling four per cabinet for 
PERCEPTlONe and four per she/f for 
PERCEPTION,, . 
NCOU (Central Office Trunk Unit)-One per four 
CO trunks: Provides the signaling supervisory 
functions on loop- and ground-start trunks. Inter- 
faces four CO trunks to the system. These trunks 
can be incoming, outgoing, or both way CO 
trunks; WATS trunks, or Foreign Exchange (FX) 
trunks. 
NEMU (E & M TIE Trunk Unit)-One per four E & 
M TIE trunks: Each TIE trunk can be individually 
strapped for Type I or II operation with either 2- 
wire or 4-wire connection. 
NLSU (DID Trunk Interface Unit)-One per four 
DID trunks: Each NLSU connects four Direct 
Inward Dialing (DID) trunks to the system. 
NDTU (Tl Interface)-Maximum of two per sys- 
tem (one in the main cabinet, one in the expan- 
sion cabinet): Each NDTU provides a’ maximum 
of 24 trunk lines. The Digital Trunk printed circuit 
card enables the PERCEPTIONehex systems 
to use DSl signaling to connect directly to either 
Tl span lines which connect to the telco (through 
a Channel Service Unit), or to a private network. 
NOCU (Off-hook Call Announce interface Unit)- 
One per eight electronictelephones. Each NOCU 
provides eight Off-hook Call Announce circuits 
for up to eight electronic telephones. Each NOCU 
takes a station PCB location in the cabinet. 
HVSUP (Off-hookCall Announce PCBs)--Install 1 
inside the electronic telephone. One unit per 
electronic telephone is required to receive off- 
hook call announce. 
DVSU (Digital Off-hook Call Announce PCB)- 1 
Installs inside the digital telephone. One unit per 
digital telephone is required to receive off-hook 
call announce. 
2-6  
						

							7. SYSTEM INDICATORS AND CONTROLS 
7.00 Several system indicators and controls are 
located on the various PCBs and assemblies. The 
locations and functions are: 
NFDU 
l Disk Drive LED-Will light to indicate when 
the disk is being accessed. 
l PUSH Button-Used to eject the diskette 
from the drive. 
LCCU 
MAJ LED-Lights when a MAJOR alarm 
exists in the system. 
MDR LED-Lights when the DTRsignalfrom 
the SMDR device is not present. An MDR 
alarm on the attendant console lights simul- 
taneously if enabled in programming. 
AUX LED-Lights when the DTR signal from 
the MIS system is not present. 
TTY switch-Slide switch used to select 300 
or 1,200 bps speed for TTY port. This port is 
used for either programming and mainte- 
nance and/or the Lodging/Health Care Audit. 
MDR switch-Slide switch used to select 300 
or 1,200 bps speed for the SMDR port. This 
port is used for SMDR and/or the Lodging/ 
Health Care Audit. 
AUX switch-This switch is used with MIS 
system. Must be set at 1200 bps. 
NTWU 
l CLOCK LED-Flashes contjnuously when 
the system is functioning as usual. 
NPRU 
l FALT LED-Indicates software-detected 
faults concerning MOH or Paging circuits. 
. BSYLED1&2 
#l lights when any page is in progress. 
#2 indicates when MOH is in use (a call is on 
hold or camp-on). 
l MOH volume control-Adjust, Music-on-hold 
volume level. 
l LOAD switch-A momentary switch used in 
an emergency condition to reload system 
program and data from disk. All existing calls 
will be dropped when this switch is pushed. 
l INT switch-A momentary switch used in 
2-7 lNSTALLATlONlNSTRUCTlONS 
SECTION 200-255-202 
FEBRUARY1992 
emergency conditions to reset system logic. 
All existing calls will be dropped when this 
switch is pushed. 
PFT switch-A locking switch used to manu- 
ally activate a transfer with the DPFT unit. A 
transfer activated by this switch can only be 
reset by this switch. 
MDM LED-Not currently used. 
PFT LED-LED is ON whenever a power fail 
transfer condition has been manually initi- 
ated. 
NRCU FALT LEDs 1, 2, 3 & 4-Used to 
indicate software-detected faults or a dis- 
abled state caused by an input command 
from the maintenance terminal (TPER Pro- 
gram). Each LED indicates two of the four 
circuits on each of the two NRCUs that can 
mount on the NPRU. 
FALT #l = Circuits 1 & 2, NRCU2 1 
FALT #2 = Circuits 3 & 4, NRCU2 1 
FALT #3 = Circuits 1 & 2, NRCU2 2 
FALT #4 = Circuits 3 & 4, NRCU2 2 
NCOU/NEMU/NLSU 
l FALT LEDs 1 & 2-Indicate software-de- 
tected faults or a disabled state caused by an 
input command from the maintenance termi- 
nal (TPER Program) or while ports are pro- 
grammed. Each LED indicates two of the 
four circuits on the NCOU, NEMU or NLSU: 
FALT #l = Circuits 1 & 2 
FALT #2 = Circuits 3 & 4 
. BSY LEDs 1 w 4-Indicate the busy/idle 
status of each of the four circuits on the 
NCOU, NEMU or NLSU. LED is ON when 
circuit is busy. 
NDTU 
l FALT LED-Indicates software-detected 
faults or a disabled state caused by an input 
command from the maintenance terminal 
(TPER Program) or while ports are pro- 
grammed. LED indicates fault occuring in 
more than one channel. 
l BSY LED-Indicates the busy/idle status of 
the 24 channels on the NDTU. LED is ON 
when more than one channel is busy. 
l FALM LED-Indicates NDTU has not 
achieved Synchronization.  
						

							INSTALLATION INSTRUCTIONS 
SECTlON200-255-202 
FEBRUARY1992 
l MFALM LED-indicates NDTU has not 
achieved Frame Synchronization. 
l YALM LED-Indicates a Yellow Alarm is 
detected by the NDTU. 
l BALM LED-Indicates a Blue Alarm is de- 
tected by the NDTU. 
l Signaling Type Selection Switches S4 w 
Sl l-Six-element DIP switches used to se- 
lect one of four available signaling modes, on 
a per channel basis, for each of the 24 NDTU 
channels. Available signaling modes are: 
CO (Loop Start) mode 
CO (Ground Start) mode 
DID (2-wire signaling) 
TIE Line mode (4-wire E&M) 
NEKWNSTWNOCWNDKU 
l FALT LEDs 1 & 2-Indicate software-de- 
tected faults or a disabled state caused by an 
input command from the maintenance termi- 
nal (TPER Program) or while ports are pro- 
grammed. Each LED indicates four of the 
eight circuits on the NEKU, NSTU, NOCU, or 
NDKU: 
FALT #l = Circuits 1 w 4 
FALT #2 = Circuits 5 w 8 
NDSU 
l FALT LEDs 1 & 2-Indicate software-de- 
tected faults or a disabled state caused by an 
input command from the maintenance termi- 
nal (TPER Program) or while ports are pro- 
grammed. Each LED represents two of the 
four ports on the NDSU: 
FALT #1 = Circuits 1 & 2 
FALT #2 = Circuits 3 & 4 
NDCU 
l FALT LEDs 1 & 2-Indicate software-de- 
tected faults or a disabled state caused by an 
input command from the maintenance termi- 
nal (TPER Program) and while ports are 
programmed. Each LED indicates four of the 
eight circuits on the NDCU: 
FALT #l = Circuits 1 w 4 
FALT #2 = Circuits 5 m 8 
l NOT READY LEDs DIU l* 4and DIU 5 u 8- 
Indicate the DDIU’s (-MA or -MAT) power 
switch is not in the ON position or tip and ring 
line polarity is reversed. NMDU 
l FALT LEDs 1 & 2-Indicate software-de- 
tected faults or a disabled state caused by an 
input command from the maintenance termi- 
nal (TPER Program) and while ports are 
programmed: 
FALT #l = DIU Circuits 1 w 4 
FALT #2 = Modem Circuits 1 w 4 
l NOT READY LEDs DIU 1 w 4-Indicate the 
DDIU’s (-MA or -MAT) power switch is not in 
the ON position or tip and ring line polarity is 
reversed. 
l BSY LEDs (Modem) 1 Y 4-Indicate the 
busy/idle status of each of the four modem 
circuits (the LED is ON when the circuit is 
busy). 
NPSA-M/LPSA-M 
l LEDs indicate the presence of: Ringer and 
-48, -24, -12, +12, -5, +5 voltages. 
l AC Power LED-Indicates the presence of 
AC power to the NPSA-M. 
NPSA-S 
l LEDs indicate the presence of: -48 and -24 
voltages. 
8. PERIPHERAL EQUIPMENT 
8.00 Electronic and Digital Telephone 
8.01 Four different electronic telephones and two 
different digital telephones may be used in the 
system. 
8.02 All electronic telephones share the same 
dimensions: 
Height: 3.7 in. (94mm) 
Width: 7.1 in. (180mm) 
Depth: 9.5 in. (241 mm) 
8.03 All digital telephones share the same dimen- 
sions: 
Height: 3.6 in. (92mm) 
Width: 7.3 in. (184mm) 
Depth: 9.0 in. (229mm) 
8.04 Both electronic and digital telephones feature 
modular handset cords. Electronic telephones are 
connected to the system via 4-conductor modular 
2-8  
						

							line cords. Digital telephones are connected to the 
system via 2-conductor modular line cords. In ad- 
dition, all models may be used at any or all stations. 
8.10 Headset Upgrade (HHEU) 
8.11 
Each electronic/digital telephone may also 
be upgraded to provide a modular headset jack by 
installing a headset upgrade assembly. The as- 
sembly consists of a small PCB (HHEU) which 
installs on the main PCB, inside the electronic or 
digital telephone, with a plug-in connector. Most 
standard headsets are compatible with the HHEU 
jack. 
8.20 Attendant Console 
8.21 
The Attendant Console is available with face- 
plates for the Business and Lodging/Health Care 
applications. The console consists of a plastic 
housing with handset/headset modular jacks. Two 
horizontal rows of non-locking buttons, LEDs and 
a 12-button dialpad enable call processing. 
8.30 DSS Console 
8.31 
As an option both electronic and digital Direct 
Station Selection (DSS) consoles can be used with 
systems that do not require attendant consoles, or 
require distributed call-handling positions. Two DSS 
consoles per electronic/digital telephone, up to a 
system maximum of eight DSS consoles, can be 
installed. 
8.40 Standard Telephone 
8.41 
Standard telephones can be mixed with elec- 
tronic telephones as required by the user’s applica- 
tion, Standard telephones can access all telephone 
features using dial code access. 
8.50 DDIWPDIU 
8.51 
There are four types of Digital Data Interface 
Units(DDIUs/PDIUs), DDIU-MAT, DDIU-MA, PDIU- 
DI, and PDIU-DS. The DDIU-MAT is a built-in unit 
that attaches directly to the bottom of a lo- or 
20-button electronic telephone (replacing the base). 
The PDIU-DI is a built-in unit that attaches directly 
to the bottom of both digital telephones (replacing 
the base). The DDIU-MA and PDIU-DS are stand- 
alone units. Each unit is equipped with a female 
INSTALLATlONlNSTRUCTlONS 
SECTlON200-255-202 
FEBRUARY1992 
RS-232C connector and operation switches. Both 
the DDIU-MAT and DDIU-MA are equipped with a 
power supply that connects to the DDlUs via a 6’ 
cord, and plugs into astandard 117 VAC wall outlet. 
8.60 Paging Equipment 
8.61 
A customer-supplied paging amplifier can 
work in conjunction with the system’s paging inter- 
face and speaker zone switching to provide a 
system paging capability. 
8.70 Music-on-Hold 
8.71 
A standard interface enables a customer- 
provided music source to be connected to the 
system. This music is connected to all calls placed 
in the hold, camp-on or call waiting condition by a 
station or the attendant. The same music source 
can also be used by the Automatic Wake-up fea- 
ture for wake-up calls. 
8.80 Universal Night Answer 
8.81 
Incoming calls, when the system is in night 
operation, can be programmed to go either to a 
night answer station or to a Universal Night Answer 
device such as a bell or loud ringer. Any station user 
can pick up a UNA call by either pressing a m 
button on the telephone or by dialing an access 
code. Up to two UNA zones can be programmed 
per system, when the system is in tenant service. 
8.90 Station Message Detail Recording 
8.91 
PERCEPTIONeLex automatically record call 
data (such as call duration, digits dialed, originating 
station and account codes) of calls made to and 
from the system. Lodging/Health Care feature ac- 
tivation (Automatic Wake-up, Message Registra- 
tion, etc.) is also recorded. This data can then 
output to a printer, recording device or call account- 
ing system. The Lodging/Health Care feature audit 
can be combined with SMDR or can be output 
separately. SMDR helps the user reduce tele- 
phone costs and monitor employee telephone 
usage. 
2-9