Macrotel Mt-16h Installation Manual

							- TELEPHONE COMPANY AND FCC 
REQUlREMENTS AND RESPQNSIBILITIES 
In compliance with the requirements of Part 68 of the FCC Rules and Regulations 
for the connection of a terminal system (this device is classified as a terminal system) 
to the telephone network and for your convenience, the following information is 
presented: 
1. Notification to the Telephone Company 
Customers connecting terminal equipment to the telephone network shall, upon 
request of the telephone company, inform the telephone company of the particular 
line(s) to which such connection is made, the FCC registration number (see the labe 
on the side of unit) and ringer equivalence number (REN)of the registered terminal 
equipment. 
The REN is useful to determine the quantity of devices you may connect to your 
telephone line and still have all of those devices ring when your telephone number is 
called. In most, but not all areas, the sum of the RENs of all devices connected to 
one line should not exceed five (5.0). T 
o b e certain of the number of devices you 
may connect to your line, as determined by the REN, you should contact your local 
telephone company to determine the maximum REN for your calling area. 
2. Direct connection to a party line or coin-operated telephone line is 
prohibited. 
3. Incidence of Harm to the Telephone Lines 
Should terminal equipment cause harm to the telephone network, the telephone 
company shall, where practical, notify the customer that service may be temporarily 
discontinued. However, where prior notice is not practical, the telephone company 
may temporarily discontinue service forthwith, if such action is reasonable in the 
circumstances. In case of such unnotified temporary discontinuance of service, the 
telephone company shall: 
a) -Promptly notify the customer of such temporary discontinuance of service. 
b) Afford the customer the opportunity to correct the situation which gave rise to 
the temporary discontinuance. 
_ 
c) 
Inform the.customer of the right to bring a complaint to the Commission 
pursuant to the procedures set out in Subpart E of Part 68 of FCC Telephone 
Equipment Rules. 
3  
						

							4. Compatibility of the Telephone Network and Terminal Equipment _ 
4 
b) 
Availability of Telephone Interface Information 
Technical information concerning interface parameters and specifications 
not specified in FCC Rules, including the number of Ringers which may be 
connected to a particular line, which is needed to permit Terminal 
Equipment to operatein-a manner compatible -with the Telephone 
Company communications facilities, shall be provided by the Telephone 
Company upon customer’s request. 
Changes in Telephone Company Communications Facilities, 
Equipment, Operations and Procedures 
The Telephone Company may makechanges in its communications 
facilities, equipment, operations or procedures, where such action is 
reasonable required in the operation of its business and is not inconsistent 
with the rules and regulations in FCC Part 68 of the FCC Rules and 
Regulations. If such changes can be reasonable expected to render any 
customer’s Terminal Equipment incompatible with Telephone Company 
Communications Facilities, or require modification or alteration of such 
Terminal Equipment, or otherwise materially affect its use or performance, 
the customer shall be given adequate notice in writing to allow the customer 
an opportunity to maintain uninterrupted service. 
5. Dual Registration Notification 
When the MT-16H 
is installed and programmed to have manual and automatic 
selection of outgoing lines, it is considered to be a hybrid system. Therefore, it 
must be registered as such. Because of this duality, the FCC has granted the MT- 
l6H system a dual registration. The installer is required to notify the telephone 
operating company of the correct registration number that reflects the 
configuration of the installation. The installer may be required to certify in 
writing to the telephone company how the system is configured.  
						

							RADIO FREQUENCY INTERFERENCE 
This equipment generates and uses radio frequency energy and if not installed and 
used properly, that is in strict accordance with the manufacturer’s instructions, may 
cause interference to radio and television reception. It has been type-tested and 
.found to comply withthe limits foraClass A. computing device in accordance with 
the specifications in Subpart J of Part 15 of FCC Rules, which are designed to 
provide reasonable protection against such interference in a residential installation. 
However, there is no guarantee that interference will not occur in a particular 
installation. If this equipment does cause interference to radio or television 
reception, which can be determined by turning the equipment off and on, the user is 
encouraged to try to correct the interference by one or more of the following 
measures: 
l Reorient the receiving antenna 
l Relocate the equipment with respect to the receiver 
l Move the equipment away from the receiver 
0 Plug the equipment into a different outlet so that equipment and receiver are on 
different branch circuits. 
5  
						

							.-._ ._ 
section 
3 .. 
GENERAL DE§CFWTION I , 
OVERVIEW 
The general description section provides detailed information of the operation of the 
MT-16H Electronic Key Telephone System. The CPU, network interface and 
’ 
system components are described in order to provide a working knowledge of the 
equipment and its operation. 
GENERAL DESCRIPTION OF THE KSU 
The system architecture of the MT-16H is designed with “state of the art” 
components and high quality design criteria. The system is organized into three 
major sections: The Central Processing Unit, the Speech Path Network and 
Interface, and the Power Supply section. 
CPU 
The heart of the system is controlled by a 280-A microprocessor. When the AC 
power is turned on, the power-on reset initializes the CPU. The CPU, in turn, 
requests instructions from the ROM to start call detection and processing. 
Temporary data is stored in the RAM alongside user programmed data.  
						

							The user programmed data is backed up by a 3.7 volt NICAD battery that isunder 
constant trickle charged by the KSU power supply. The NICAD is also used to 
provide backup voltage for the real time clock. The NICAD battery will protect the 
speed dial numbers and customer database until the power.outage exceeds 
approximately 40 hours. 
When the AC power is turned ON, the NICAD recharges. 
Memory 
power backup circuitry is monitored by voltage detecting circuitry 
controlled by the CPU and, in turn, works with the power supply circuitry, 
which 
monitors the DC output of the power supply. 
NETWORK CONTROL 
The network is designed using a solid state, space division architecture to insure low 
loss and channel flexibility. 
Audio Channels 
CoLmmon Path 
10 
Doorphone 1 
DTMF 1 
MOH 
1 
Internal tones 1 
External page 1 
DATA - STAmONMO PATH 
- CO. UNE AIIDK) PAW 
NElYEORK - EXTB’UL FWWG PATH 
CHIP 
/ _ DlMF WNG PAM 
CYIDRESS 
_ W9C SOURCE 
PATH 
-TONESOWCEPAlH 
Fire 2 
The 12 x 8 cross point supports common audio channels, a DTMF sending channel, 
a music source channel, and an external paging source channel. In the event that all 
common channels are busy and an incoming callis ringing, the system will select the 
external page channel and ring the appropriate phone(s). If that channel is busy, the 
system will notify the operator via the alarm tone. When the power-on sequence 
takes place, the matrix isinstructed to connect all stations with a tone. This checks 
the data connection, ensuring that digital communication is working between the 
KSU microprocessor and the telephone microprocessor. It also checks that the audio 
path from the KSU network is communicating with the telephone network. 
8  
						

							POWER SUPPLY 
The power supply section consists of components which change 1 lo/220 AC 
voltage into the DC voltage which the integrated circuits use. Working in 
conjunctionwith this circuitry, the 
MT-16H employs an on-line monitoring circuit 
which detects under-voltage and over-voltage. 
In the event the system loses AC voltage and the system battery backup has been 
installed, the system detects when the batteries have discharged to such a rate that 
the KSU is no longer usable. Instead of allowing the batteries to completely 
discharge and become damaged, the system disconnects the batteries. 
When AC voltage is restored to the KSU, the circuitry also monitors the charging of 
the batteries. Charging will take place until the monitor circuit detects that the 
batteries are in a charged state; which, in turn, turns off the charging circuit thereby 
preventing the batteries from being overcharged. 
SYSTEM COMPONENTS 
The basic MT-16H cabinet is a 408 configuration expandable to a 612 and 816 
configuration. The 408 cabinet provides for 4 central office lines, 1 door-phone and 8 
electronic telephones. Two (2) of the 8 telephones are optionally selectable as 
keyphones or single line telephones. Included in the cabinet is a ring generator for 
single line telephones, a power supply PCB and the.main PCB. The following are 
also contained in the main PCB: 
l 280-A Microprocessor 
l Associated logic and memory circuitry 
l Real-time clock 
l RAM Battery backup 
l System timer 
l Speech path network circuit 
l External paging circuitry 
l Music on hold circuitry 
POWER SUPPLIES 
l AC to DC rectification 
l _ External. system battery backup monitoring and control 
l * DC battery input fuse’ 
l Battery backup _- 
l Ring generator for single line telephones 
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							DOORPHONE 
The MT-16H main PCB contains circuitry for one door-phone. Calling to and from 
the KSU is standard. A door lock relay contact is also provided. The user, after 
answering the call, may press-the door key (or dial 3) which, in turn, activates the 
relay. Database Programming.activates the hardware. 
EXPANSION CARDS 
The MT-16H KSU supports the following three expansion cards: 
MT-STU/A 
Provides an additional capacity of 2 CO lines and 4 keysets. Programming activates 
the additional CO lines and keysets. 
MT-STU/B 
Provides an additional capacity of 2 CO lines and 4 single line telephone circuits. 
Prog ramming activates the additional CO lines and single line telephones. 
MT-STU/C 
Provides an additional capacity of 2 CO lines or 2 E&M tie lines and 4 keysets. 
Progr amming activates the additional CO or E&M Lines and keysets. 
SMDR CARD 
This card is used to record details for calls made to the public switch network. A 
printer or monitor is required. 
LCD DISPLAY KIT 
The LCD Display Kit is field installed and allows the user to upgrade to a display 
telephone without having to replace the original telephone. No programming is 
needed to enable this feature. 
WALL MOUNT KIT 
The WMK is a dual function kit which allows the phone to be attached to a wall in 
a vertical manner or by reversing the unit, provides a 28 degree elevation to the 
telephone. 
BATTERY BACKUP., 
MacroTel provides an optional backup kit (PN # 2208037) for the MT-16H. This is 
to be used when commercial power has failed. When fully charged, the batteries will 
provide power for 6 to 8 hours, depending on usage.  
						

							, 
SINGLE LINE TELEPHONES 
Any 
industrial standard single line telephone may be installed on the MT-16H. The 
total ringer equivalency should not exceed 5.OB per single line port or damage to the 
system might result. 
ELECTRONIC TELEPHONE SETS 
The MT-16T telephones support 8 CO lines and 16 stations. It has a built-in 
speakerphone and an optional LCD unit which may be installed at a later date. Any 
phone location may be used to program the system database as long as the correct 
security code is entered. All phones support 
: 
l T&color LEDs to distinguish active lines. 
l Separate volume controls for CO line ringing and hands-free conversation. 
l Magnetic receiver transducers compatible with most hearing aid pickup coils. 
MT46T TELEPHONE SET 
DEFAULT KEY ASSIGNMENTS 
TIMER AUTO ANSWER AUTO 
BOSS 
 (C;~$O&y$,b;o~~Bb 
R ETARY 
 
HANDSEF- 
SPEAK- 
. . DIAL PAD - 
t- LCD 
(Liayjd ,Crystal 
I~ RINGER 
-VOLUME CONTR 
3DS 
I , CONFERENCE 
c PAGE 
- VOLH##?&R 
HOLD KEY 
t 
SPEAKER 
Figure 3  
						

							MAXIMUM SYSTEM CAPACITIES: MT-1661 - 
Key stations 16 
Single line telephones (rotary or DTMF) 10 
Central office lines 8 
Tie lines (2 wire E&M Type I> 
4 
Speed dial numbers (up to 30 digits) 
System 90 
Station 
16 
Doorphone 1 
Conference 
Simultaneous parties 5 
Simultaneous conferences 6 
Simultaneous call forwards 16 
Station status messages 20 
Toll restriction (5 classes) 
Class 0 is unrestricted. 
Class 1 follows a programmable allow/deny table. 
Class 2 follows another programmable allow/deny table. 
Class 3 follows an allow table. 
Class 
4 restricts station to internal calls only 
Digits monitored Up to 10 
Page zones 
External 1 
Internal 
4 
Boss/Secretary station assignment 1 
Ringing 
stations 
Day 
8 
Night 8 
Automatic power failure transfer circuits 6 
DTMF Receiver 6 
DTMF Sender 1 
ELECTRICAL SPECIFICATIONS 
INPUT 
l ACInput 
l Power consumption 
l Current draw _ 
115/220 VAC at 60/5OHz 
60.5 watts maximum 
1 .O AMP mazimum 
ALLOWABLE VARIANCES 
l 115VAC 110-130 VAC 
l 220 VAC 210-230 VAC 
l 60Hz 50-65Hz 
12  
						

							OUTPUTS 
l Main Power Supply SV+-S”/&l.OA DC 
12V+-lO%@l.OA DC 
. -12V +-10%@0.2A DC 
3OVmax @ l.OA DC 
24V min @I l.OA DC 
l Ring Generator 80V +- 10% @ 0.06A AC (20 Hz) 
MUSIC ON HOLD SPECIFICATIONS 
l Input level 
l Input Voltage Maximum 
. Output Maximum 
l Use Johnson Plug 600 Ohms 
250 mV (Nominal) @ - 1Odbm 
1 Volt RMS 
Miniature l/8” (3Smm) 
EXTERNAL PAGING SPECIFICATIONS 
l Output level 250 mV (Nominal) @ - 1Odbm 
l Output maximum 400 mVRMS 
HANDSET Dynamic transducers 
KSU 
l Weight 
l Dimensions 
PHYSICAL CHARACTERISTICS 
22.5 Ibs (10.2Kg) 
20.75” (527 mm) H 
x 13.56” (344.4mm) W 
x 3.44” (87.4mm) D 
ENVIRONMENTAL SPECIFICATIONS 
For optimal equipment performance, the following guidelines should be followed: 
l KSU - operating range 41’ F (5” C) - 104’ F (40” C) 
l Relative humidity 
Not more than 90% non-condensing. 
VJDJTILATION 
This equipment uses state-of-the-art components which generate very little heat. 
Although.it does not require strict environmental conditions, it is strongly suggested 
that the equipment (mainly the KSU) be in a controlled environmental area. Places 
such as garages, cleaning rooms, etc. have high heat, dust and/or corrosive air which 
reduces the life of any equipment.