Inter-Tel Microprocessor Key Installation And Maintenance Practices Manual

							INTER-TEL PRACTICES 
! 
.d’ DESCRIP 
CONTENTS PAGE 
1:00 INTRODUCTION . .-.I. +‘-:&:. , :, . . . . , , .1-l 
General . . . . . . . . . .--i,;;.;.; :. y.: . . . . . . . . . . .1-l 
Technology . . . . . . ;;I’; -. ., 
. , . . ,t.. iv: _, . . . . . . . . . 
l-l 
Installation . . . . . . .,. . ..+;.. . . . . . . . . . . . . . . . .l-2 
Seurklng . . . . . . . . . . . -.‘;i ..:‘:‘. . . . ; . . . . . . . .l-2 
-. Hardware Descriptlort’.?. .‘;I.. . . . . . . . . . .l-3 
-,y,Speciflcations ,.. .( 
. .,.*>J ,..*) .a .*,,.(-. i, . . . . . . . . . . . . . * 1-7 
. . . . I.- 
&,1.00 INTRODUCTION .^ ._- station or all &%%&;(intercom all-page) when the ,,,*_! .::. 
‘.i’.,..,,, :,a..-- 
station user presses-%he appfbpriate keys on the 
.:“?,, 
station or DSS/BLF:&$coming calls from the,outsib,e .,.,I ,,_ ..:.. 
(3.0. lines are sense&by the M.PK system KSU..The 
., .“.>I ,,I- 
ii01 General 
TheraTER-TEL Microproceskor Key (MPK) systems 
are designed +o meet th&$eeds of the small to 
medium key system installaii’dtiswhere growth poten- 
.._.__. _-._. 
ti’arand system versatitity^a:rx&essential. INTER-TEL 
.h%designed two MPKsyste&s, MPKA and MPKAI, 
identical in function a&d features, but different in KSU then begins rit@ng stations p&granir%jd to’ .-. 
ring in on the partio$@r lineand final’ly’8eiz&Zf@ I’.:.:-: 
^,,. ..,...,,... I... :.* I( 
line when the statiorY2ise~ $$$s,e$ thelappropriate . 
line key. All calls in ~.~~~ceS’s.can.,be.tra~Sferred by .’ 
the station user to @h@r.&$ioii$ or plae”d dn ‘hrjlc ,;,i,,..:: : -_I’ 
when the station us~F.~~es~~~~;?,~e_al?prgp;~~~~;.t. keys::... : ., .‘.. 
on the station or D~~~~iF-.~~~..KSU...inonitor~ ali,--‘.--‘. 
transferred calls and.,caHs dn-hpld.7or.a pQ’@;$
						

							:,~~~~C=SIPTION 
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‘i,distributed microprocessorcontroftechnology. 
, 
The audio signals 
						

							INTER-TEL PRACTICES 
.*! 1.05 Hardware Description ‘) 
_I ‘i 
The MPK systems consist of the following hardware: 
the Key Service Unit (KSU)-and ,associated PCB’s, 
the system power supply, the multi-line keysets, the 
optional Direct Station Selector/Busy Lamp Field 
(DSWBLF), the optiona\,,Station Message Detail 
Recorder! (SMDR), the opf$on&batteries and the 
connectois. _ 
j;: .I I ‘I 
						

							DES$R,lPTION 
SiXTlON 340-100-100 INTER-TEL PRACTICES 
!j 
( 1 
l Provides computer interface to loop start 
C.O. lines to detect. ring-in and loop 
holding current, to proyjde loop seizures, 
and to send network control signaling in 
either DTMF or dial pulse. 
l DTMF or dial pulse can be selected by 
inserting or removing integrated circuits 
on plug-in sockets. How.ever, INTER-TEL 
sells the,,COU PC6 as either a DTMF or 
dial pulse PCB. 
i ,i 0, Plugs,/@o the MPK/I KSU cardfile slot 
: ,.. marked ;.“CQU l-2!’ ,with components 
: facing left.. : ‘: 
I 
; : _ i 
l Plugs,.i,nto; the MPK/I.I, KSU cardfile slot 
,!. ‘, ..i marked ,CQU l-5” with components 
facing., left, I: 
,>; ir :. 
,_ r,l’ !,, -‘; LED Jam~ps,on the,front edge of the PCB 
~ / ,. ~~ rr$rcate.power-upstatus (top), and usage 
I 
?.,,I : 81j; ,’ .:,,;pf the,COU$-res (bottom two). 
‘,, 
,,: I ;:- : i, Each of the, two circuits on a PCB is 
assigned a line number by the PCB loca- 
r: , ,tion in theKSU.and the circuit location on 
,..‘I: the PC,B.,The PCB inserted into COU slot 
;1:: -,:I? ,l.,aqntains lines 1; to 2, top to bottom 
f-7. jt / respectively,,-as indicated by the PCB 
, I ‘,:I: .’ qLED damps. Slot 2 contains lines 3 to 4, 
. /# : top to bottom respectively, etc. Line 
numbers may not be reassigned in the 
data base. 
l Six-wire modular jack (only the middle 
four pins are used) on the front of the PCB 
to access the COU lines. This allows easy 
disconnection of problem local C.O. net- 
work lines from the MPK system or of a 
problem MPK line from the local C.O. 
,: r  ,;‘,!,“. net.work.as required by:,FCC regulations. 
,. @.‘ t;-,; I~ ‘t ;i; e _’ 
: :;;, :$. ;,Cpti@n!aI Conference (CNF) PCB (See Fig- 
!.(‘.f 
t ,ye.+5) !~ : i 

						

							INTER-TEL PRACTICES 
DE&+‘ilbN 
SECTION ?4[)-$@jiiQO 
Issue 3, April 1983 
,) c. Mu’ti-Line Keysets. For MPK/I the maximum 
number of keysets is 16; for MPK/II the maximum 
number of keysets is 32. Any of the various 
keysets can be used on either system in any 
combination. All are interfaced by the STN 
PCB. The keysets are as follows: 
1. Model 1032T Keyset (See Figures l-6 and 
l-7) 
l Ten C.O. line keys each with an LED to 
show the status of a line. 
l A special key, (SPCL) used as an all-page 
key. 
l Four special feature keys each with an 
LED to show status of feature. 
l A standard telephone keypad. 
l A handset for private conversations with 
standard telephone coiled dual four-pin 
modular handset cord. 
l An internal speaker for handsfree con- 
versations 
l A voice vo!um,econtrol dial for handsfree 
speaker-Molume control. 
l A reversible baseplate for desk or wall 
mount. 
l By removing the faceplate and keyboard, 
access is gained to a set of programmable 
DIP switches for setting or omitting some 
of the optional station features. Access to 
the ring tone vol’ume control is gained, as 
well as access to the station +5VDC power 
voltage setting: iThe +.WDC setting may 
require removal of the top housing, 
making it difficult for a user to change this 
setting which .is+ preset -.at the factory 
before shipment. ,, 
l All the necessary cables to connect to a 
standard six-pin m,odulgr telephone jack. 
l A set of labels to markthe line and special 
feature keys and theq station numbers. 
Enough blankshave been provided to 
allow these to, be ,cuStom-made by the 
user if so desired. 
2. Model 416T Keyset (6ee Figures l-7 and 
l-8) , 3 
.-.:I 
l Four C.O. line keys each with an LED to 
show status of the line. Note: If the 416T is 
used on an MPK/II system, out-of-range 
lines cannot be accessed on this station. 
Its main use is on MPK/I. 
l Four special feature keys each with an 
LED to show status of a feature. / 
l A &&trd telephone keypad. 
l 1’Atian&set for private conversations with 
’ starWard telephone coiled dual four-pin 
ti&ftilar handset cord. 
l An-internal speaker for handsfree con- 
versations. 
l Avoice volume control dial for handsfree 
speaker volume control:.” 
l A reversible baseplate for desk or wall 
mount. :x: I’ 
l By removing thefa’ceplateand keyboard, 
access is gained to a set of programmable 
DIP switches used!to’set or omit some of 
the optional st$fion! features. Access to 
the ring tone volume &k-rtrol is gained, as 
well as access to the&Hio,n +5VDC power 
voltage setting. Wiei’fr!WC Gtting may 
require removdt”o’f “fh&“‘top housing, 
making it difficuit’for duse’rfochange this 
setting which’ is preset,‘at the factory 
before shipmenti: ’ 
l All the necessary cablesto connect to a 
standard six-pin 
kibdcllat telephone jack. 
l A set of labels td’markthe iine and special 
feature keys and th’estatibn numbers. 
Enough blanks have’been provided to 
allow these to-be customnihde by the user 
if so desired. i 
D. Direct Station Selector/Busy Lamp Field 
(DSWBLF) Unit (Optional). If the DSWBLF’s 
are powered frcm the plug-in wall transformer, 
every station in the system can have a DSWBLF. 
This would be a maximum of 16 DSS/BLF’s for 
MPK/I and 32 DSWBLF’sfor MPK/II. If powered 
from the system;a recommended maximum of 
one DSWBLF per station (STN) PCB and two 
per system is recommended. This is; of cdurse, 
dependent on the number of stafidnsand equip- 
ment being run by the system power supply and 
the current carrying capabflity offhe STN PC6 
and KSU backplane. ’ \“- ’ 
1. Model 3532D’,DSS/BLF (See Figures l-9 
and l-lo):.‘, , 
.,Y: ! : 
“::I‘ I / 
l One per station. ‘: “’ 
. 32 st&Wr~ keys to allow singl”e button 
access to’statf&s 10 to 41, \Nhere 10 is the 
upper left corner key and 41 i$ the second 
key from the left on the botto’m row. 
l 32 station lam’ps to display the status of 
the associated’ station key (i.e.-busy, in 
do-not-disturb or available). 
Page 1-5  
						

							DESCRIPTION 
SECTION 340-100-100 
issue 3, April 1983 INTER-TEL PRACTICES 
Three special feature keys (NOT USED 
ATPRESENT). 
These are the last right-most three keys 
on the bottom row. 
By removing the faceplate and the key- 
board, access is gained to the +5VDC 
power voltage setting. This voltage is set 
at the factory prior to shipment. 
AC plug-in wall transformer and cable to 
power DSS/BLF. Not required if modified 
to be powered from the system. 
A reversible baseplate for desk or wall 
mount. 
All the necessary cables to connect to a 
standard six-pin modular telephone jack. 
A set of labels to mark the special feature 
key and the station numbers. Enough 
blanks have been provided to allow these 
to be custom-made by the user if so 
desired. 
2. Model 30300 DSS/BLF (See Figures 1-11 
and 1-12) 
l One per key station. 
l 30 station keys to allow single button 
access to stations 10 to 39, where 10 is the 
upper left and 39 is the lower right. 
l 30 station lamps to display the status of 
the associated station key (i.e. busy, in 
do-not-disturb or available). 
. By removing the faceplate and keyboard, 
access is gained to the +5VDC power 
voltage setting. The voltage is set at the 
factory at time of shipment. 
l AC plug-in wall transformer and cable to 
power DSS/BLF. Not required if modified 
to be powered from the system. 
8 A reversible baseplate for desk or wall 
mount. 
l All the necessary cables to connect to a 
standard six-pin modular telephone jack. 
l A set of labelsto mark the special feature 
key and the station’ numbers. Enough 
blanks have been provided to allow these 
to be custom-made by .the user if so 
desired. 
: ‘- 
E. Station Message Detail Recording (SMDR) 
Unit. The SMDR unit can be any 300 baud rate 
RS-232C interface compatibfe recording device. 
:,.,..This could bea printer or tape recorder or even 
a disk drive. INTER-TEL sells a 300 baud rate 
printer for this unit and a data cassette recorder 
is also available. Processing of the data re- -. 
corded on the cassette is not performed bv ’ ’ 
, 
INTER-TEL at the present time. However, many 
software houses can accommodate the format- 
ting of the data to the customer’s specific 
requirements at a nominal cost. 
One SMDR unit per system. 
The INTER-TEL SMDR printer uses standard 
3-7/8 inch adding machine roll paper avail- 
able through iNTER-TEL or office supply 
outlets. The printer utilizes standard 115VAC, 
15 amp power service. Actual power dissi- 
pation may vary depending on the unit present- 
ly being marketed. All necessary connection 
cables are shipped with the INTER-TEL 
SMDR printer. 
Data is sent to the SMDR unit in a standard 
ASCII right-justified columnar format. 
F. Batteries. The battery on the CPU PCB for data 
base protection is the NI-CAD rechargeable 
type and is not replaceable but will give years of 
service. When powered from the MPK/IA or 
MPK/IIA power supplies, batteries for the 
system back-up will give continuous, uninter- 
rupted power to the entire system during 
periods of brownout or total loss of AC power. 
Power is not normally provided for the DSS/BLF’s 
and their associated keysets. Refer to Para. D. 
. +24VDC batteries (typically two +12VDC with 
the same amp/hour rating are required for the 
system backup of the MPK/IA and MPK/IIA 
system. 
l Batteries are not sold by INTER-TEL; stan- 
dard off-the-shelf batteries are available from 
most electrical supply outlets. 
CAUTION: Batteries should be placed 
in a well- 
veriti’lated room and not mounted in the 
KSU main cabinet due to outgassing 
and the corrosive nature ofthe batteries. 
l The MPK system power supply will trickle 
charge both the CPU and full system batteries 
to keep them at full power. Initially, fully 
charging the system may take 24 to 48 hours. 
H. Connectors 
l All telephone wall receptacles are standard 
six-pin modular jacks. 
l STN and COU PCB connections are by six- 
pin modular plug. 
Page 1-6  
						

							INTER-TEL PRACTICES 
l Connection to the RS-232C interface on the 
CPU PCB requires a 25pin subminiature “D” 
male plug. Connection of an audio source to a 
music-on-hold module requires an l/8” sub- 
miniature phono plug. 
l All necessary plugs and connectors are tele- 
phone industry standard and are available 
from telephone/electronic parts supply distrib- 
utors. 
l Interface to operating company C.O. lines 
utilizes standard quick-connect blocks as the 
demarcation strip. Recommended blocks are 
available from: 
SIEMON COMPANY 
91 DEPOT STREET 
WATERTOWN, CONNECTICUT 06795 
AREA CODE 203/274-2523, TELEX 96-2480 
BULLETIN NO. 5. 
These blocks are specifically made for 
INTER-TEL products. 
1.06 Specifications MPK/IIA 
/ A. Capacities, Maximum (MPK/I and MPK/IA) 
l 16 stations 
l 4 CO. lines Height - 25.5 in. 
Width - 27 in. 
Depth L 18 in. 
AC power cord - 6 ft. 
l 5 intercom channels 
l 4 C.O. channels 
l 1 music-on-hold channel 
l 2 conference calls 
l 1 RS-232C interface 
l 16 DSS/BLF units 
l 25-day onboard battery protection of the 
system data base 
l System power failure battery back-up protec- 
tion - MPK/IA only 2. Keyset Stations (Models 416T or 1032T) 
Height - 4.5 in. 
Width - 8 in. 
Depth - 9 in. 
Handset cord - 6 ft. coiled 
Line Cord;-- 6 ft. straight 
3. SMDR Printer 
B. Capacities, Maximum (MPK/II and MPKIIIA) Height - 6.5 in. i:,, 
Width - 10.5 in. , “. .I’ ’ 
Depth - 13 in. ?’ 
AC power cord - 6 ft.’ 
Interface cable - 3 ft. 
l 32 stations 
i 4 
l 10 CO. lines 
l 5 intercom channels 
l 10 CO. channels 
l 1 music-on-hold channel 
l 2 conference calls 
l 1 RS-232C interface 
l 32 DSS/BLF units 
l 25-day onboard battery protection of system 
data base 
l System power failure battery back-up protec- 
tion - MPK/IIA only DESCRIPTION 
SECTION 340-100-100 
Issue 3, April 11963 
1: .,: I 
C. Physical Dimensions’(Approximate) 
1. KSU 
!, 
MPK/I !, 
Height - 10 in. 
Width 
-: 10.5 in. 
Depth - 10 in. 
MPK/II 
Height - 10 in. 
Width --‘20 in. 
Depth -’ 10 in. 
MPK/IA 
‘Height 2 25.5 in. 
Width - 27 in. 
Depth - 18 in. 
AC power cord - 6 ft. 
.:: 
L 
4. DSS/BLF 3532D 
Height - 3.5 in. 
Width - 8 in. 
Depth - 10 in. 
AC power cord - 6 ft. 
DSS/BLF to station cable - 2 ft; sfraight 
. . 
Page l-7  
						

							DESCRIPTION 
SECTION 340-100-100 
issue 3, April 1983 
5. DSS/BLF 30300 
Height - 3.5 in. 
Width - 10 in. 
Depth - 9 in. 
AC power cord - 6 ft. 
DSS/BLF to station cable - 2 ft. straight 
6. Power Supply 
MPK/I 
Height - 6 in. 
Width - 10.25 in. 
Depth - 5.75 in. 
AC power cord - 6 ft. 
DC power cable - 2 ft. 
MPK/II 
Height - 5 in. 
Width - 10 in. 
Depth - 7.25 in. 
AC power cord - 11 ft. 
DC power cable - 2 ft. 
MPK/IA power supply housed in KSU cab- 
inet 
MPK/IIA power supply housed in KSU cab- 
inet 
D. Technology 105 to 130VAC, 50/60 Hz, 1.35 amp oper- 
ating current, 2.0 amp maximum start-up 
current. 
l Continuously Variable Slope Delta Modula- 
tion (CVSD) 
MPK/II 
l TDM clock frequency: 3.579 MHz 
l Time slot channels: 16 (280 nsec each) 
-0 Microprocessor: Motorola MC 6801 
a- Operating frequency: 1 MHz 105 to 130VAC, 50/60 Hz, 2.2 amp operating 
current, 4.0 amp maximum start-up current.  INTER-TEL PRACTICES 
416T 
48 ohm or 939 ft. 
MPK/IA - MPK/IIA (680.06 power supply) 
1032T 
45 ohm or 877 ft. 
1032T with one 3532D DSS/BLF 
15 ohm or 283 ft. 
1032T with one 3030D DSS/BLF 
13 ohm or 257 ft. 
416T 48 ohm or 939 ft. 
NOTE: When 24 A WG wire is not used or longer 
station loopsare required, +14VOCpotential 
must be maintained across the station and 
DSSIBLFpower input. Excessive and/or high 
resistance connections will lower the loop 
limits. Using larger gauge wire (lower A WG 
number) or multiple 24 A WG wire will reduce 
the loop resistance and therefore extend the 
loop limits. DSSIBLF units powered by indi- 
vidual wallplug-in transformers do not signif- 
icantly affect prescribed loop limits. 
2. System Power Requirement 
(All current is for maximum system) 
MPK/I 
MPK/IA 
E. Electrical Characteristics 
1. Loop Limits (using 24 AWG wire) 
MPK/I - MPK/II (340.06 and 340.07 power 
supplies) 
1032T 45 ohm or 877 ft. 
1032T with one 3532 DSS/BLF 
15 ohm or 283 ft. 105 to 130VAC, 50/60 Hz, 1.30 amp oper- 
ating current, 8.0 amp maximum start-up 
current. 
MPK/IIA 
105 to 130WAC, 50/60 Hz, 2.15 amp oper- 
ating current, 8.0 amp maximum start-up 
current. 
1032T with one 3030D DSS/BLF 
13 ohm or 257 ft. 
Page l-8  
						

							INTER-TEL PRACTICES 
DSWBLF 
Class 2 wall plug-in transformer, 16 watt 
120VAC primary, 16VAC 0.70 amp second- 
ary. 
3. Central Office Line Protection 
Tip to Ring: 800V transient 
To ground: 1500VAC RMS 
4. Central Office Characteristics 
MPK FCC Registration: BE287V-68377-KF-E 
Ringing Voltage: 45VAC minimum 
Ringer Equivalence: 0.9A REN 
Central Office PCB has no effect on longi- 
tudinal balance. 
0 dB loss from telephone network to C.O. line. 
5. Environmental Requirements 
Ambient Operating Temperature: 
Recommended ambient temperature not to 
exceed 29” C / 90” F for an extended period 
of time. 
Storage Temperature: 
-55” to 5o”c 
67” to 122” F 
Humidity: 
No condensation; 95% maximum relative DESCRIPTION 
SECTION 340-100-100 
Issue 3, April 1983 
Page l-9