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© Inovonics, 2011 - www.inovonics.com

EN1215EOL EchoStream

®

 Universal 

Transmitter with Wall Tamper

Installation Instructions - 05042E, March 24, 
2011

1 Overview

The Inovonics EN1215EOL universal transmitter with an 
included wall tamper switch can be used with any 
standard contact or sensor. A 2.2K ohm end of line 
resistor is included with the EN1215EOL, and is required 
for operation.
The EN1215EOL includes a back tamper switch. The 
tamper condition must be defined within the control panel 
as a trouble condion when the system is disarmed, and 
as an alarm condition when the system is armed.

Note: 

For UL installations, refer to the 

EN4216MR 

Installation and Operation Manual

, the 

EN4232MR 

Installation and Operation Manual

, or the 

EN7285 

Installation Instructions

.

Note: 

For UL installations, the switch contact must be in 

the same room as the EN1215EOL.

Note: 

The cable length from the switch contact must not 

to exceed 10 feet.

Note: 

For UL installations, the EN1215EOL must be 

installed in accordance with UL 681.

1.1 Inovonics Wireless Contact Information

If you have any problems with this procedure, contact 
Inovonics technical services:

• E-mail: [email protected]
• Phone: (800) 782-2709

1.2 EN1215EOL Components

 Figure 1  

EN1215EOL components

2 Installation and Startup

2.1 Installation Notes

• These products are designed to be installed and 

maintained by professional security technicians.

• Products are intended for indoor use.
• Manually test all products weekly.

2.2 Install/Replace the Battery

1.

Insert a small screwdriver to depress the housing 
release tab on the bottom of the transmitter; pry the 
housing apart.

 Figure 2  

Open the EN1215EOL Housing

2.

If replacing a battery, remove the old battery.

3.

Install the new battery.

4.

Press the 

Reset

 button to initialize the transmitter.

5.

Test the transmitter and ensure appropriate response.

2.3 Select the Frequency Band

EchoStream products are able to use a range of radio 
frequencies, and must be configured for your geographic 
area. To configure the transmitter:

1.

Place a selection jumper on the appropriate frequency 
band selection pins.

• Place the jumper on the right two pins, marked NZ, to 

set the frequency range to 921-928 MHz for New 
Zealand.

• Place the jumper on the left two pins, marked AU, to 

set the frequency range to 915-928 MHz for 
Australia.

• Leave the jumper off the pins to set the frequency 

range to 902-928 MHz for North America.

Note: 

Only devices set for use in North America are 

configured for UL or cUL installations.

2.

Press the 

Reset

 button to complete configuration.

Caution: 

When pressing the 

Reset

 button, make sure 

you don’t also touch the frequency band selection pins. 
Touching the frequency band selection pins while 
pressing the 

Reset

 button can inadvertently set the 

EN1215EOL to the wrong frequency band.

2.4 Select Input Type and Wire Resistor

The N/O-N/C selection pins allow the choice of a normally 
open or normally closed state for the contact circuit wired 
to the input terminal.
The transmitter is shipped set for normally closed, with no 
selection jumper on the N/O selections pins.

Set for Normally Open Operation
1.

Place a selection jumper on the selection pins to 
select normally open.

2.

Use 22 AWG wire to wire the 2.2K ohm resistor in 
parallel with the N/0 contact per Figure 3. The distance 
from the external contact to the EN1215EOL must not 
exceed 10 feet (3 meters).

3.

Press the 

Reset

 button to complete configuration.

 Figure 3  

Wired for N/O operation

Normally Closed Operation
1.

Remove the selection jumper from the selection pins. 

2.

Use 22 AWG wire to wire the 2.2K ohm resistor in 
series with the N/C contact per Figure 4. The distance 
from the external contact to the EN1215EOL must not 
exceed 10 feet (3 meters).

3.

Press the 

Reset

 button.

 Figure 4  

Wired for N/C operation

A

B

C

D

E

E

F

G

A

Housing tamper button

B

N/O - N/C jumper

C

Input terminal

D

Reset button

E

Wall-mount screw holes

F

Housing screw hole

G

Frequency band selection pins

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