Lencore MPI-2 LOCAL User manual

USER
MANUAL
MPI-2 LOCAL RACK UNIT

MPI-2 Local Rack Unit
Contents
MPI-2 Local Rack Unit............................................................................................................... 1
Overview.......................................................................................................................................... 2
Features and Capabilities ................................................................................................................ 2
Inputs........................................................................................................................................... 2
Output ......................................................................................................................................... 2
LEDs ............................................................................................................................................. 2
Front Panel ...................................................................................................................................... 3
Rear View......................................................................................................................................... 4
Wiring .............................................................................................................................................. 5
To Global MPI .............................................................................................................................. 5
Microphone Input........................................................................................................................ 5
Microphone RCA Input ................................................................................................................ 6
Music Input.................................................................................................................................. 6
Phone input ................................................................................................................................. 6
Data ............................................................................................................................................. 7
Break Tones Input........................................................................................................................ 7
Doorbell....................................................................................................................................... 8
Message Triggers......................................................................................................................... 8
GND (Audio Com) ...................................................................................................................... 9
AC Input..................................................................................................................................... 9
Using the System ........................................................................................................................... 9
Power LED.................................................................................................................................. 9
Activity....................................................................................................................................... 10
Source Selected ......................................................................................................................... 10
Source Select pushbutton ......................................................................................................... 10
Audio Test pushbutton.............................................................................................................. 11
Page On/Off pushbutton ........................................................................................................... 11

Status/Page On LEDs ................................................................................................................. 11
Audio Level (Page/Music) LEDs ................................................................................................. 12
Input Page Volume potentiometer ........................................................................................... 12
Input Music Volume potentiometer.......................................................................................... 13
Operation ...................................................................................................................................... 14
Phone Paging:............................................................................................................................ 14
MIC Paging:................................................................................................................................ 14
Direct MIC connection........................................................................................................... 15
Microphone RCA connection................................................................................................. 15
Paging Priorities:........................................................................................................................ 15
Music input................................................................................................................................ 15
Audio Test button:..................................................................................................................... 15
Internal speaker source select: ................................................................................................. 16
Page on/off button:................................................................................................................... 16
Break Tones inputs: ................................................................................................................... 16
Doorbell..................................................................................................................................... 16
The Doorbell input can be used to play one of two doorbell chimes.................................. 16
Message Triggers....................................................................................................................... 16
Adding a Global MPI-2............................................................................................................... 16
Overview
The Local MPI-2 rack unit is Lencore’s music and page interface (MPI) to be
used for iNET systems. The MPI-2 is capable of zoned or all-call paging as well
as background music. Paging can be made via any telephone on the network or
a microphone. The MPI-2 has the ability to page up to 99 individual zones for
paging using standard DTMF tones through a POTS appearance telephone line.
The system is also programmed for all-call and emergency broadcast paging.
Background music can be added from any line-level source. The Local MPI-2
rack unit also has the ability to play break tones, pre-recorded messages, and
doorbell chimes. The Local MPI-2 rack is designed to fit into a standard 19” rack.

MPI-2 Rack Unit
Lencore’s Music Page Interface (MPI) Rack Unit replaces all the bulky headend
equipment that that is associated with music and paging systems. With the MPI,
there is no need for additional cable home runs, amplifiers, separate equalizers,
special switching equipment or matching vendors for compatible product interfaces.
The MPI’s technology is so sophisticated that it can allow zone additions,
modifications, deletions and other changes to the paging system on the fly, without
rewiring. This eliminates the need for running multiple home runs back to the
electrical closet or through building risers to create separate or additional zones.
The MPI allows the ability to use up to 99 individual zones for paging using
standard DTMF tones through a POTS telephone line. When the MPI is connected
to the i.Net’s web appliance, programming can be set for up to 1.5 million square
feet of space through a single device.
The Local MPI-2 Rack Unit completes the i.Net system for local communication.
i.Net is THE most sophisticated sound masking system in the industry.
1

Features and Capabilities
•Front panel LEDs. Various front panel LEDs indicate various functions
and activity of the unit.
•Analog phone input.
•Built-in speaker for testing/troubleshooting.
•Audio Test button. The Audio Test button is used to play pre-recorded
music for testing/troubleshooting the paging lines.
•Single turn pot to adjust the paging and music input signals levels.
•Ability to connect a Global MPI.
Inputs
•Power input.
•Analog phone line input (RJ11).
•Ground 2-pos terminal block (screw terminals).
•Microphone inputs (individual wires and RCA).
•Music inputs (RCA).
•Global MPI (RJ45).
•Data from the head-end (RJ45).
•Break tones 4-pos terminal block (screw terminals).
•Doorbell 4-pos terminal block (screw terminals).
•Message Triggers 6-pos terminal block (screw terminals).
Output
•Data output to OPs (RJ45) with two audio sources.
LEDs
•Power –solid when the unit is powered.
•Status –blinks during boot-up and audio test, solid when paging or IR
remote button is pressed.
•Page On –solid during an active page.
•Audio input level –two sets of three LEDs for paging and music input level
detection. Yellow = low or no input. Blue = good audio level. Red = audio
input too high.
•Activity - Rx –blinks when Neuron is receiving data Tx –blinks when
Neuron is transmitting data.
2

Front Panel
1. Power LED
The power LED indicates power to the
unit.
2. Activity LEDs
The activity LEDs indicate LON activity.
3. Source Selected LEDs
The source selected LEDs indicate
which source has been selected to play
on the internal speaker.
4. Source Select pushbutton
Used to select the audio source to play
on the internal speaker (source 5 for
music, source 6 for paging).
5. Audio Test pushbutton
Used to start and stop the audio test on
the paging lines.
6. Page On/Off
Used to start and stop a page for audio
connected to the MIC input.
7. Status/Page On LEDs
The Status LED will flash while the unit
is booting up and on when a page is
active. The Page LED will be on during
a page.
8. Audio Level LEDs
The audio level LEDs indicate the audio
input level for paging and music.
9. Input Page Volume
The input page volume adjustment is
used to increase the page volume.
10. Input Music Volume
The input music volume adjustment is
used to increase the music volume.
3

Rear View
11. To Global MPI
Connect an RJ45 cable to the optional
Global MPI.
12. MIC
The 5-position MIC input is for a
microphone input.
13. MIC
The RCA MIC input is for a line-level
microphone input.
14. Music
The RCA music input is for line-level
music.
15. Phone
The RJ11 phone input is for a POTS
appearance phone line.
16. Data
The RJ45 data connector “HE” connects
to the Head-End “To OP” connector
while the “OP” connects to the OP
“Data In”connector.
17. Break Tones
The break tones input is used to trigger
break tones.
18. Doorbell
The doorbell input is used to trigger
doorbell tones.
19. Message Triggers
The message triggers input is used to
trigger pre-recorded messages.
20. GND (Audio Com)
Connect a single ground wire to the
Head-end ground connector.
21. Power Input
Power cord connector (IEC 60320) 100-
240VAC.
4

Wiring
To Global MPI
The addition of a Global MPI-2 is optional. The Global MPI-2 allows the user to
page all buildings with a Global MPI-2 simultaneously. The “To Global”MPI
connector is for communicating to the Global MPI. Wire the “TO GLOBAL MPI” to
the Global MPI’s “TO LOCAL MPI” connector using an RJ45 cable.
Microphone Input
The microphone input is for a dynamic microphone.
Connect a microphone to the “MIC” connector using individual wires from the
microphone.
SIG+/SIG- = MIC audio
SHLD –MIC shield
SW/SW = MIC key switch
5

Microphone RCA Input
The Microphone RCA input allows a line-level microphone input to be used for
paging.
Connect a line-level microphone signal to the MIC RCA connector using an RCA
cable.
Music Input
The Music input is for background music.
Connect a line-level music source to the MUSIC input using an RCA cable. The
left (L) and right (R) inputs are summed together internally.
Phone input
The Phone input is for phone paging.
Connect a POTS appearance phone line to the PHONE connector using an RJ11
cable.
6

Data
The Data connector is used for communicating to the head-end and to the OP.
Connect the “HE” to the head-end “TO OP” connector using an RJ45 cable.
Connect the “OP” to the OP Data In connector using an RJ45 cable.
Break Tones Input
The Break Tones input connector is used to trigger one of two break tones.
Connect a normally open dry contact to “1” and “C1” for break tone #1 and/or “2”
and “C2” for break tone #2 using 16 AWG wire.
1
5
2
6
3
7
4
8
PINS - 568 B
ORANGE|WHITE
ORANGE
GREEN|WHITE
BLUE
BLUE|WHITE
GREEN
BROWN|WHITE
BROWN
1
2
3
4
5
6
7
8
LON A | ILON®DATA NETWORK
LON B | ILON®DATA NETWORK
INITIALIZATION (SEQUENCER)
PAGE (+)
PAGE (-)
INITIALIZATION (SEQUENCER)
MUSIC (+)
MUSIC (-)
7

Doorbell
The Doorbell input connector is used to trigger one of two doorbell chimes.
Connect a normally open dry contact to “1” and “C1” for doorbell chime #1 and/or
“2” and “C2” for doorbell chime #2 using 16 AWG wire.
Message Triggers
The Message Triggers input connector is used to trigger one of three pre-
recorded messages. Connect a normally open dry contact to “1” and “C1” for
message #1 and/or “2” and “C2” for message #3 and/or “3” and “C3” for message
#3 using 16 AWG wire.
8

GND (Audio Com)
The GND (Audio Com) connector is the audio return for the system. Connect a
single 16 AWG wire from the GND (Audio Com) to the head-end GND and to the
OP GND (Audio Com).
AC Input
Connect the supplied IEC power cord to the AC Input. The unit is rated ate 100-
240VAC.
Using the System
Power LED
The Power LED indicates power to the MPI.
9

Activity
The activity LEDs indicate LON activity. The LEDs will be flickering under normal
activity. LON is the communication protocol for the iNET system.
Source Selected
The Source Selected LEDs indicate which source (5 for music, 6 for paging) has
been selected to be played through the internal speaker. If no source has been
selected, neither LED will be on.
Source Select pushbutton
The Source Select pushbutton selects which source (5 for paging, 6 for music)
will be played through the internal speaker. Press the Source Select button once
for source 5, twice for source 6, and a third time for off.
10

Audio Test pushbutton
The audio test pushbutton is used to play a pre-recorded music clip over the
paging lines. This is used for testing and troubleshooting purposes. Press the
Audio Test button one and the Status LED will blink while a pre-recorded sound
clip plays over the speakers using the paging lines. Note that the paging volume
for the speaker channels must be turned on using System Manager prior to
initiating the test.
Page On/Off pushbutton
The page on/off pushbutton is used to toggle the page on and off command.
This is used for testing and troubleshooting purposes. Press the Page On/Off
once to initiate a page and a second time to tun the page off. The Page On LED
will stay on until the page is manually turned off indicating that a page is in
process.
Status/Page On LEDs
The Status LED indicates that the internal microprocessor is functioning
normally. The Page On LED indicates an active page is in progress.
11

Audio Level (Page/Music) LEDs
The Audio Level LEDs indicate the audio level input for the paging and music
signals. Low (yellow) indicates a low audio level, Good (green) indicates a good
audio level, and Clip (red) indicates am audio level that is too high, and clipping
is occurring.
Input Page Volume potentiometer
The Input Page Volume potentiometer allows the page input to be adjusted to
maintain a good page level indicated by a green LED for the Audio level LEDs.
Adjustments can be made by a small flat blade screwdriver. The potentiometer
is a single-turn potentiometer. Turning the potentiometer clockwise increases the
input page signal while counterclockwise decreases the input page signal.
12

Input Music Volume potentiometer
The Input Music Volume potentiometer allows the music input to be adjusted to
maintain a good music level indicated by a green LED for the Audio level LEDs.
Adjustments can be made by a small flat blade screwdriver. The potentiometer
is a single-turn potentiometer. Turning the potentiometer clockwise increases the
input music signal while counterclockwise decreases the input music signal.
13

Operation
Plug the power cable into the MPI-2. The Power LED will be on and solid while
the Status LED will blink for approximately 10 seconds. When the Status LED
stays off, the MPI-2 is ready to use.
Phone Paging:
1. Plug the analog phone line (RJ11) into the MPI-2 Phone input.
2. Dial the extension of the phone line. The Status LED will turn on.
3. Wait for a tone from the MPI then press 00# for an all-call page or the
zone number followed by the “#”. Pressing the “*” will hang-up after
pressing the “#.”
4. Wait for a tone from the MPI then make the page. Hang up the phone
receiver when the page is complete. The Status LED will turn off.
Note: The zones must be configured with Lencore’s System Manager or Reports
software.
The telephone input requires a POTS appearance line using an RJ11 connector.
The basic specification for a POTS appearance line is below:
A CO (central office) POTS line is a 2-wire analog appearance.
1) It is a 2 wire (Tip and Ring) analog appearance.
2) It is configured to be loop start.
3) Battery voltage is 48 Volts.
4) Loop current of 23 milliamps.
5) Must have DTMF signaling capability.
6) Must have hang-up (winking) supervision.
Generally, the use of an FXS card (Foreign Exchange Station) or an ATA card
(Analog Telephone Adapter) is required not an FXO (foreign exchange office)
card.
Assign an extension to the port. Calling the extension will activate the paging
system.
MIC Paging:
Direct MIC connection
1. Connect a microphone to the MIC input.
2. Press the MIC key to make a page.
14

3. Release the MIC key when the page is complete.
Microphone RCA connection
1. Connect a MIC to Lencore’s MIC pre-amplifier.
2. Connect the audio output of the MIC pre-amp to the MIC RCA audio input
of the MPI-2.
3. Press the MIC key and make the page.
4. Release the MIC key when the page is complete.
The page input can be adjusted for the proper level by turning the Page
potentiometer CW or CCW. Using a flat-blade screwdriver, turn the adjustment
CW to increase the input level and CCW to decrease the input level. The ideal
audio input level can be adjusted so the blue LED on the Audio Level (Page)
LEDs is on or flickering. Increase the level if only the yellow LED is on. Reduce
the level if the red LED is on.
Paging Priorities:
- MIC RCA (all-call) has priority over phone.
- Telephone and MIC paging will duck music.
Music input
The MPI includes one music input for a line-level audio source using an RCA
cable. The audio input can be adjusted for the proper level by turning the Music
potentiometer CW or CCW. Using a flat-blade screwdriver, turn the adjustment
CW to increase the input level and CCW to decrease the input level. The ideal
audio input level can be adjusted so the blue LED on the Audio Level (Music)
LEDs is on or flickering. Increase the level if only the yellow LED is on. Reduce
the level if the red LED is on.
Audio Test button:
Pressing the Audio Test button plays a short audio clip over the paging (source
6)lines. After pressing the Audio Test button, the Status LED will flash indicating
that the audio clip is playing. Pressing the Audio Test button again, will stop the
audio clip from playing and the Status LED will stop flashing and turn off.
15

Internal speaker source select:
The pushbutton selector switch can select the audio source to play over the
internal speaker. Press the pushbutton until the Source Selected LED indicates
the source to play over the internal speaker. Source 5 is the paging line and
source 6 is the music line. No LED indicates that neither source will play over
the internal speaker.
Page on/off button:
Pressing the Page on/off button enables a page from audio source 6. The status
LED will be on and solid during the page. Pressing the Page on/off button again
stops the page and the Status LED will turn off. This can be used for trouble-
shooting purposes.
Break Tones inputs:
The Break Tones inputs can be used to play one of two break tones.
Closing Break Tones input 1, triggers the first break tone
Closing Break Tones input 2, triggers the second break tone.
Doorbell
The Doorbell input can be used to play one of two doorbell chimes.
Closing Doorbell input 1, triggers the first doorbell chime.
Closing Doorbell input 2, triggers the second doorbell chime.
Message Triggers
The Message Triggers can be used to play one of three pre-recorded messages.
Closing Message Triggers input 1, triggers the first message.
Closing Message Triggers input 2, triggers the second message.
Closing Message Triggers input 3, triggers the third message.
Adding a Global MPI-2.
A Global MPI-2 can be added by connecting the Local MPI-2 “To Global”to the
MPI-2 Global “To Local”using an RJ45 cable. A single conductor ground wire is
also required from the MPI-2 Local GND to the MPI-2 Global GND. The Global
MPI-2 adds a second all-call only phone page input and a second all-call MIC
page input to the system. The Global MPI-2 is used to page to multiple buildings
at the same time while the Local MPI-2 allows in-building paging. The priorities of
the Local and Global MPI-2 paging depend on the firmware of the units.
16

Lencore Acoustics Corp.
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Woodbury, NY 11797
516-682-9292
[email protected]
www.lencore.com
The information contained herein is proprietary to Lencore Acoustics Corp. and copyright protected. No part of this manual can
be copied, used or distributed without prior authorization from Lencore Acoustics Corp. ©Copyright 2020