ELK M1TWI Specsheet

OPERA TION

A listen-in session can be initiated two ways.
A. By an alarm from a zone that has the "two way

listen-in" option enabled. After the alarm has
transmitted, the dialer will hold the line for up to
60 seconds, allowing the CS Operator to press
the DTMF "Dual tone multi frequency" command
*55* to initiate listen-in. If this tone command is
not received, the dialer will hang-up and release
the phone line.

B. Via the telephone remote control feature, if
enabled. Call the control and wait for it to
answer. Then enter a valid passcode. Select
option 7 “Audio Monitor” and follow the Tone
Commands below. Telephone remote control is
enabled from Installer Programming, Menu 07 ­Global System Definitions, Option G01.

NOTE: An active two way session will terminate
automatically after 3 minutes, unless manually
extended using DTMF tone command 7.

DTMF TONE COMMAND

DTMF *55* BEGIN LISTEN-IN - For use by the

Central Station to initiate listen-in.

Two Way Listen-in

Interface

ELK-M1TWI

APPLICATION:

The ELK-M1TWI Interface allows microphones
to be connected to the ELK-M1 for two way voice
verfication and listen-in. It features 3 separate
microphone zones with up to 4 microphones per
zone. Programming options and operation pro­cedures are already built into the M1 control.

Two Way Listen-in

Interface

ELK-M1TWI

DTMF 1 TALK - Mutes all microphones and

turns Output 1 speakers ON.

DTMF 2 LISTEN - Turns Output 1 speakers

OFF permitting premises listen-in.

DTMF 3 MAX. SENSITIVITY - Raises the gain

on microphone sensitivity.

DTMF 4 MICROPHONE SELECT -

40 Selects ALL microphones
41 Selects Microphone Zn 1
42 Selects Microphone Zn 2
43 Selects Microphone Zn 3

NOTE: All 3 mic zones are initially
active when listen-in begins.

DTMF 5 - [future use]
DTMF6 LOW SENSITIVITY - Lowers the gain

on microphone gain to minimum

sensitivity.
DTMF 7 EXTEND - Restart 3 minute listen-in.
DTMF 8 TERMINATE FOR NOW - Ends the

listen-in session but allows callback

restart within 1 to 60 seconds

(programmable). Control will answer

on first ring during this time.
DTMF 99 TERMINATE SESSION - Ends the

listen-in session.
DTMF 0 - [future use]
DTMF * CANCEL last key-press (undo )
DTMF # - [future use]

Operation of the two way listen-in feature is affected
by the following installer programming options:

- Menu 05-Zone Definitions, Option 06 "Enable Listen-

in" must be enabled "Yes" for any triggering zone(s).

- Menu 07-Global System Definitions:

Option G31 "2 Way Listen-in" must be enabled "Yes".
Option G32 "2 Way Callback Time" is a timer value
which may be set to allow time for the CS to callback
and initiate a listen-in session after dialer hangup.
Option G01 "TelRmtCtl" must be enabled "Yes" if you
wish to initiate listen-in by Telephone Remote Control.

0112706

FEATURES:

•Interfaces Listen-in Microphones to the M1

•Powers Microphones and Performs Switching

•Provides 3 Separate Microphone Zones

•Each Zone Can Have Up to 4 Microphones

•All Programming and Operation Is Performed

from the M1 Control

SPECIFICATIONS:

•Requires ELK-M1TWM or M1TWS Microphones

•Operating Voltage: 12 Volts D.C.

•M1TWI Board Current Draw: 10mA

•Microphone Current Draw. 5mA each

•Housing Dimensions: 4.375" x 3.0" x 1.125"

•Circuit Board Dimensions: 3.5" x 2.75

NOTE: Use of Two W ay Listen-in may be
regulated local or state law and/or ordinance.
It is the responsibility of the Installer to check
before using this feature.

828-397-4200 Voice

828-397-4415 Fax
http://www.elkproducts.com
email: [e-mail]

PO Box 100 • Hwy. 70W • Hildebran, NC 28637 • USA

Instructions Printed On Inside

INSTALLATION

The following equipment is required: ELK-M1TWI Interface, 8 Conductor J7 Cable (packed with M1TWI), 12 Conductor J16
Cable (packed with M1), and at least 1 M1TWS Speaker/Microphone or M1TWM Microphone.

1. Mount the M1TWI in the M1 enclosure near the right side of the main board. The 12" audio/power cable must reach connector

J7, located about 1/3 up from the lower right side of the M1 board. The M1TWI can be mounted using double sided tape or
screws. An alternate method is to remove the board from the black case and mount it on a set of ELK-SWG Glides (not
included) which holds the board vertically and conserves space.

2. Install at least one Microphone/Speaker (M1TWS) near the center of the building. Recommended wire is 22 to 24 gauge UTP

(unshielded twisted pair) for the microphone, and 18 to 20 gauge for the speaker.

3. Connect the first microphone to the two terminals marked Zn 1. The M1TWI has 3 microphone zones (inputs) and 3 triggers.

During a listen-in session the operator can choose to listen to ALL zones or select a specific zone. See operation instruc­tions. Each zone is capable of handling up to 4 microphones.

4. Connect the microphone Zn 1 trigger terminal T1 to Output 7 (Tan wire) on the M1 J16 connector. Plug the J16 cable into the

M1. NOTE: Outputs 7, 8, and 9 automatically become assigned as the triggers for Microphone zones 1, 2, and

3 whenever the "Two Way Listen-in" option is enabled in the M1 Installer Programming. See Menu 07-Global
System Definitions, option 31.

5. Connect speaker wires directly to Output 1 on the M1. NOTE: The maximum number of speakers is based on the

total load (resistance/impedence). Output 1 should never be loaded below 2 Ohms total load. Typically that
allows up to four 8 Ohm speakers to be paralleled.

6. Connect the Aud, +, and - terminals to the Brown/White, White/Blue, and Blue/White wires of the 8 conductor J7 Cable. Plug

the J7 cable into the M1 connector marked J7 "Audio Network Interface". The M1TWI is now powered up and ready to test.

+

-

16
15
14
13
12
11
10

9
8
7

J1

Outputs 7 & 8 are passed through to

these terminals when connected to

Output Relay Board

8 Form C Relays

If an M1RB is already connected to J16 then use

these connections for Mic triggers.

LED

LED

LED

J-16 on M1 Control.

SPDT

Relay

SPDT

Relay

SPDT

Relay

M1RB

M1 Control

(Right Side Terminals)

J16

+12V
NEG
16
15
14
13
12
11
10

9
8
7

OUT3OUT2

+

-

+

-

OUT1

J7

AUDIO NETWO RK INTERFACE

OUT3 LED

N/CCOMN/O

OUT 11

From +12V

DC Aux.

N/O COM N/C N/O COM

OUT 9 OUT 10

N/O COM N/C

8

Out

Neg

7

Out

T1

J16 Outputs 7 - 16

+12V switched positive

rated at 40mA. ea.

+VAUX
NEG

OUT 16
OUT 15

OUT 14
OUT 13
OUT 12
OUT 11
OUT 10
OUT 9
OUT 8
OUT 7

N/C

COM

N/O

+

Siren

-

+

Voice

-

Audio Network Connection (J7)

For Two-Way Listen-in and Future Use!

Red

+12V

Black

NEG

White
Green
Brown
Blue
Orange
Yellow
Violet

Relay (OUT 3)

2 Parallel Speakers

IMPORTANT NOTE:

Use of Two Way Listen-in may be regulated

local or state law and/or ordinance. It is

the responsibility of the Installer to check

before using this feature.

ELK-M1TWI

Two Way Listen-in Interf ace

Microphone Zones

Zn 1 T1

Zn 2 T2 Zn 3 T3

Mic 4

Mic 4

Mic 4

Mic 3

Mic 3

T3

T2

Not

Used

Grey
Pink
Tan

Mic 2

Mic 1

Max. 4 mics

per microphone

zone

Zn 1 T1 Zn 2 T2 Zn 3 T3 Aud - +

Mic 2

Mic 1

Mic 3
Mic 2

Mic 1

Aud

+

-

From M1 - J16

B
l

u

/

W
h

t

Audio/Power
from M1 - J7

Connector

Brown/White
White/Blue
Blue/White

Mic. Triggers

Connector

Out 9 (Grey)
Out 8 (Pink)
Out 7 (Tan)

W

B
r

h

n

t

/

/

W

Bl

h

u

t

Insulate
unused

wires.

Plug 8 conductor

B

r

n

/

W

h

t

cord into J7

ZN1 - ELK-M1TWS

Mic/Speaker

White & Black = Speaker

Green (s) = Microphone

ZN2 - ELK-M1TWS

Mic/Speaker

White & Bl ac k = Speak er

Green (s) = Microphone

ZN3 - ELK-M1TWM

Microphone

(2 Green Wires)

W

B

l

h

u

t

/

/

W

B

l

h

u

t

Hookup Diagram for ELK-TWI Listen-in with 2 Mic/Speaker Zones and 1 Microphone only Zone