M1EZ8 Installation and Programming
Page 58
[Effective w/Firmware 4.3.6]
Using a Two Way Interface board (ELK-EZ8TWI), up to 3 zones of listen-in can be provided. Each zone can have up to 4
microphones for a total of 12 listen-in points. Talk back is delivered through the speakers connected to the EZ8TWI. A
two way session can be triggered by any number of zones when an alarm occurs. Two way can also be triggered during
a Telephone Remote Control session. Instructions for the ELK-EZ8TWI are included with the interface.
OPERATION
1. Two way Listen-in must first be enabled from Menu 07-Global System Options. There are two required options.
Option 31, “2Way Listen-in Enable” (No or Yes) and Option 32, “2Way Callback Time” (000 to 255 seconds). These
options are defaulted to No and 000. In addition, you must also decide which zone(s) need to activate listen-in and set
their “Enable Listen-in” programming option. Whenever a Central Station alarm message is transmitted for one of these
zones, the dialer provides two methods for initiating a listen-in session.
1a. Hold the Line - After alarm kissoff the dialer will hold the phone line open for the amount of time programmed in
Option 32, “2Way Callback Time”. This can be from 001 to 255 seconds. During this time the Operator may pick up the
line and press * 55 * to initiate an immediate two way session. If the control does not receive * 55 * during the time
period it will hang up and release the phone line.
1b. Callback - Upon hangup the control uses the same time value (Option 32, “2Way Callback Time”) to begin a call-
back time window. During this time window the control will answer any incoming call on the 1st ring, and allow the
Operator to press * 55 * to initiate a two way session.
2. Once a two way session has begun, it will continue for 3 minutes before automatically disconnecting. To extend the
two way session for 3 additional minutes you must press command 7.
TONE COMMANDS
* 55 * BEGIN LISTEN-IN Used by Operator to begin a listen-in session.
1
TALK
Talk through all speakers connected to Output 1.
2
LISTEN All 3 microphone zones are enabled initially. Use key 4 to change mics.
3
SENSITIVITY INCREASE Raise the microphone gain.
4
MICROPHONE SELECT 4+0 Selects ALL microphones, 4+1 Mic1 zone, 4+2 Mic2 zone, 4+3 Mic3 zone
5
[future use]
6
SENSITIVITY DECREASE Lowers the microphone gain.
7
EXTEND TIME for 3 minutes
8 - 8 TERMINATE SESSION and enable 1 ring callback answer for selected time.
9 - 9 TERMINATE SESSION without enabling callback answer mode.
0
[future use]
*
CANCEL last key-press (undo )
#
[future use]
Appendix B - Two Way “Listen-in/Talk” Interface (optional)
Yes
Yes
No
No
Yes
No
"CS Verify Call Time" starts, if set. (Menu-07, Option 33) Dialer will not dial additional alarm
reports during this time, keeping phone line free for Central Station "Voice" Verification.
Dialer Activated (Alarm)
Dialer seizes house
phone line, dials
Central Station and
sends report, then
receives Kissoff.
Dialer remains off-hook for time set
in Menu-07, Option 32, "2 Way
Callback Time" looking for command
* 55 * to start a two-way session.
Dialer hangs up. Phone
line is un-seized.
END
Command
*55* received?
Was
the alarm from
a listen-in
Zone?
Dialer hangs up. Phone line is un-seized.
Two way
listen-in
starts.
It ends after
3 minutes or
when
command
99 is
pressed.
Yes
No
Two way listen-in starts. It ends after 3
minutes or when command 99 is pressed.
Command
* 55 *
received?
End
End
Phone rings
before timer
expires?
Phone line is seized again after 5
seconds. "2 Way Callback Time"
restarts, during which time the
dialer will answer any incoming
call on the 1st ring.
Dialer
Answers
WWW.DIYALARMFORUM.COM
