Instructions Printed On Inside
828-397-4200
Voice
828-397-4415 Fax
http://www.elkproducts.com
email: [email protected]
PO Box 100 • Hwy. 70W
•
Hildebran, NC 28637 • USA
M1EZ8 Two Way
Listen-in Interface
ELK-M1EZ8TWI
APPLICATION:
The
ELK-M1EZ8TWI
Interface allows micro-
phones to be connected to the ELK-M1EZ8 for
two way voice verification and listen-in. It fea-
tures 3 separate microphone zones with up to 4
microphones per zone. Programming options
and operation procedures are already built into
the M1EZ8 control.
FEATURES:
•
Adds Listen-in Microphones to the M1EZ8
•
Adds Amplified Talk-back Speaker Output with
Adjustable Volume Control
•
Powers Microphones and Performs Switching
•
Provides 3 Separate Microphone Zones
•
Each Listen-in Zone Can Have Up to 4 Mics
SPECIFICATIONS:
•
Requires ELK-M1TWM or M1TWS Microphones
•
Operating Voltage: 12 Volts D.C.
•
Speaker (Output) Load: 2 to 16 Ohms
•
Current Draw: 50mA to 80mA (depending on
load and volume setting)
•
Housing Dimensions: 4.375" x 3.0" x 1.125"
•
Circuit Board Dimensions: 3.5" x 2.75"
NOTE: Use of Two Way Listen-in may be
unlawful or regulated by local or state law/or
ordinances. It is the responsibility of the
Installer to check before using this feature.
M1EZ8 Two Way
Listen-in Interface
ELK-M1EZ8TWI
08/05
OPERATION
A listen-in session can be initiated from any zone
which has the "two way listen-in" option enabled.
After the zone alarm is transmitted, the dialer will
hold the line for up to 60 seconds, allowing the
CS Operator to press the tone command *55* to
initiate listen-in. If this tone command is not
received, the dialer will hang-up and release the
phone line.
NOTE: An active two way session will terminate
automatically after 3 minutes, unless manually
extended using command 7. Tone Commands
are summarized below:
Tone Commands:
*55* BEGIN LISTEN-IN - This command is used
by the Central Station to initiate listen-in.
NOTE: All 3 microphone zones are initially
active when listen-in begins. Use tone com-
mand 4 options to select mic zones.
1
TALK - Toggles (turns on) Output 1 speakers
allowing you to talk to the premises.
2
LISTEN - Toggles (turns off) Output 1
speakers allowing you to listen.
3
MAX. SENSITIVITY - Raises the microphone
gain to maximum sensitivity.
4
MICROPHONE SELECT -
40 Selects ALL microphones
41 Selects Microphone Zn 1
42 Selects Microphone Zn 2
43 Selects Microphone Zn 3
5
- [future use]
6
LOW SENSITIVITY - Lowers the microphone
gain to minimum sensitivity.
7
EXTEND TIME - Restarts 3 minute listen-in.
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.
9 9 TERMINATE SESSION - Ends the listen-in
session without any callback allowed.
0
- [future use]
*
CANCEL last key-press (undo )
#
- [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.
