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© 2010 Inovonics  - www.inovonics.com

EchoStream® EN1233S/D and EN1235S/D 
Pendant Transmitter

Installation Instructions - 05596B

1 Overview

1.1 Inovonics Wireless Contact Information

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

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

1.2 Pendant Transmitter Components

 Figure 1  

Pendant Transmitter components

2 Installation and Startup

2.1 Install/Replace the Battery

1.

Pry the housing apart at either end and pull the two halves 
apart.

2.

If replacing a battery, remove the old battery.

3.

Install the new battery.

4.

Press the 

Reset

 button to initialize the transmitter.

2.2 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.

Pry the housing apart at either end and pull the two halves 
apart.

2.

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

• Leave the jumper off the pins to set the frequency range to 

902-928 MHz for North America.

• Place the jumper on the bottom pins, marked NZ, to set the 

frequency range to 921-928 MHz for New Zealand.

• Place the jumper on the top two pins, marked AU, to set the 

frequency range to 915-928 MHz for Australia.

3.

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 pendant to the wrong frequency band.

2.3 Register the Pendant Transmitter

The pendant transmitter must be registered with the system in order 
to be monitored and supervised. When supervised, the pendant 
transmitter will send a check-in message to the serial receiver or 
network coordinator every three minutes.
Each pendant has a unique factory-programmed identification 
number. Refer to the control panel’s installation instructions for 
details on registering a transmitter.

1.

When prompted by the receiver to reset transmitter, press the 

Reset

 button.

2.

Replace the cover.

Caution: 

The pendant should be tested after registration to ensure 

operation. To test the pendant, activate each of the conditions and 
ensure an appropriate response.

3 Operation

3.1 Using The EN1233 Pendant Chain

Always use the chain included with the ES1233.  Substituting 
stronger cords or chains may result in injury to the wearer.

3.2 Converting the Pendant Transmitter Belt Clip

If you’d like to convert the pendant transmitter belt clip to a belt loop, 
secure the bottom of the belt clip to the housing with a coarse 
thread screw.

 Figure 2  

Use a coarse thread screw to secure the belt clip

3.3 Operate the Pendant Transmitter

To activate single button transmitters, press the button for at least 
one second. To activate double button transmitters, press both 
buttons simultaneously. Alarm signals are transmitted multiple times 
and are indicated by the blinking transmission LED. When the 
buttons are released, the transmitter sends an alarm restoral 
signal.To test a transmitter, activate the alarm by pressing the 
button(s).

4 Specifications

Typical battery life: 

3-5 years

Battery type (BAT608): 

Panasonic CR2 or equivalent

Operating environment: 

0 to 60°C (32 to 140°F), noncondensing

A

Reset button

B

Frequency band selection pins

C

Battery

B

A

C

Printing Instructions

1.

Print Duplex

2.

Align and orient back page to match front 
page.

3.

Cut on dashed line

4.

Fold cutsheet in half along the 8.5" axis.

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