AeroScout EX5700 Installation and Operation Manual

EE1941XS/EN1941XS One-Way Serial RF

B

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F

K

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H

A

O

B

C

G

D

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1.3”

Pitch:

2.54mm.

.385” to
Center of
First Pin

.090” to
Center
of First
Pin

.335” to
Center
of Hole

.515” to
Center of
Hole

.156”
Diameter

.5”

2.525”

Module

Installation and Operation Manual - 06288D

1 Overview

EchoStream RF modules are designed to be easily interfaced with your electronic
remote application controller (RAC). Your RAC contains application specific
functionality and uses the RF module to send application-specific data over the
wireless network. The RF module communicates with you r application controller via a
wireless connection, and your remote application controller via a serial connection,
allowing the assimilation of any user-specific application into an EchoStream system.
Once integrated with an existing product, an RF module provides you with complete
EchoStream functionality.
The E*1941XS, equipped with the UART logic-level serial connection, is primarily
intended for use as a daughter board, interfacing directly with your RAC.

Figure 1 One-Way System Components

2 One-Way Serial RF Module Components

The E*1941XS is a one-way serial data transmitter, designed to physically interface
with your product. Serial data sent to the E*1941XS from your remote application
controller is formatted by the E*1941XS, and the data is then transmitted as an RF
message to the network coordinator.
There are two models in the E*1941XS product family.

• The EN1941XS, for 900 MHz applications in North America, New Zealand, and
Australia

• The EE1941XS, for 868 MHz applications in Europe

D Secondary alarm E Power F Ground
G Primary alarm H LED contacts I Tamper input
J Reset input K ES selection pins L Mounting hole
M On-board antenna N Board stabilization

hole

Frequency band selection pins (EN1941XS only) Place a jumper to select the
frequency band for your geographic area.

• Place the jumper on the left two pins to select 915-928 MHz for Australia.

• Place the jumper on the right two pins to select 921-928 MHz for New Zealand.

• Leave the jumper off the pins to select 902-928 MHz for North America.
ES selection pins (EE1941XS only) To enable compatibility with ES products, place
a selection jumper on the ES selection pins; if no ES products are used in your
system, remove the selection jumper.

Secondary alarm Driving pin high triggers a secondary serial alarm status message.
Primary alarm Driving pin high triggers a primary serial alarm status message.
Tamper input Driving pin high triggers a serial ta mper status message from the RF

module to the RAC. Does not trigger an RF tamper message.
Reset input Connects a reset input, to reset the one-way serial data RF module after
a frequency band selection change.

Power Connect power cabling to an external power supply of 2.4 to 5.5 volts.
Ground Connects to ground.
Mounting hole Used to mount the one-way serial data RF module to the user-specif ic

product. The mounting hole should only be used with a nylon standoff, never metal.
Board stabilization holes Used to mount and stabilize the board. The board
stabilization holes should only be used with non-metal standoffs.

Data output Outputs messages to the RAC.
Data input Receives messages from the RAC.

3 One-Way Serial RF Module Dimensions

Figure 2 EN1941XS One-Way Serial RF Module Components

Board stabilization hole. B Data output C Data input

A
D Secondary alarm E Power F Ground
G Primary alarm H LED contacts I Tamper input
J Reset input K Frequency band

M On-board antenna N Board stabilization

selection pins

hole

L Mounting hole

Figure 3 EE1941XS One-Way Serial RF Module Components

A Board stabilization hole.

B

Reserved C Reserved

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Figure 4 E*1941 One-Way Serial RF Module Dimensions

4 One-Way Serial RF Module Connections and

End user
application
printed circuit
board

RF
module

Clear transmit
region in front
and back of
antenna

Output Jumpers

Connection Output Jumper N/C

Primary Alarm

Secondary
Alarm

Tamper

Reset

Open Alarm
Ground Alarm Clear
Open Alarm
Ground Alarm Clear
Open Tamper
Ground Tamper Clear
Open for normal operation; connect to the ground and

release for a board reset.

5 Installation

A The RF module must only be connected at the eight pin header or eight pin plated

thru-holes.

B All cables and wires must be routed away from the component side of the RF

module.

C The integrated antenna must not be tampered with; no connection to an alternate

antenna is provided.

D The application module must not include an integrated secondary colocated radio

module.

E The one-way serial data RF module antenna should be placed so that it is facing

away, or otherwise isolated from, your device’s ground plane.

F Components that are sensitive to RF transmission, such as high gain circuits,

should be isolated from the antenna to prevent interference.

G One-way serial RF modules should not be mounted on metal surfaces or inside

metal enclosures. They should also not be mounted where sheet metal ductwork,
wire mesh screens, etc. might block transmissions.

H The RF module should be integrated so the antenna is unobstructed by the end

user’s PCB, batteries, or any other conductive material.

Figure 5 The RF module should be integrated so the antenna is unobstructed

6 One-Way Serial RF Module Requirements

6.1 Timing requirements

All data is sent at a default rate of 9600 baud, no parit y, 8 data bits and one stop bit.
The data is transmitted least significant bit first.

6.2 Power Requirements

The E*1941XS has an on-board voltage regulator. Connect power cabling to an
external power supply (Vcc) of 2.4 to 5.5 volts. Voltage must be sustained at 2.4 volt s
or above and supply 100 milliamps during the transmit cycle.

EN1941XS

Assuming check-in messages every 3 minutes and infrequent alarm messages (one
per day, on average), the average current draw is 32 uA. Peak current draw while
transmitting is less than 100 mA. One alarm/restore cycle with the maximum payload
size results in approximately a 23mA increase in the average current.

EE1941XS

Assuming check-in messages every 12 minutes and infrequent alarm messages (one
per day, on average), the average current draw is 15 uA. Peak current draw while
transmitting is less than 50 mA. One alarm/restore cycle with the maximum payload
size results in approximately a 12mA increase in the average current.

6.3 Low Battery Condition

The E*1941XS measures power supply voltage every three and a half hours, and,
when the voltage measures 2.4 volts, a serial message is sent in dicating a low batte ry
condition.

6.4 Temperature range

-20°C to +60°C, non-condensing

6.5 RF network compatibility

EchoStream Commercial Mesh Network

6.6 Payload size

50 bytes maximum

6.7 Input Requirements

Caution: Input levels must not exceed 3.3 V.
Open When an active source (open collector o r dry cont act) is used to drive the alarm

or tamper input, the voltage should be between 0.75xVcc and Vcc. A passive input
should have an impedance of greater than 5.1k ohm between the input and ground.
Closed When an active source is used, the voltage should be less than 0.25xVcc. A
passive input should have an impedance of less than 240 ohm.

6.8 Serial I/O - UART logic-levels

Input levels must not exceed 3.3 V. Output levels are limited to 3.3 V, maximum.
Data in pins Vih (minimum high level input voltage): 0.75xVcc
Data in pins Vil (maximum low level input voltage): 0.25xVcc
Data out pins Voh (minimum high level output voltage): Vcc - 0.25 at Ioh: -1.5mA
Data out pins Voh (minimum high level output voltage): Vcc - 0.6 V at Ioh: -6mA
Data out pins Vol (maximum low level output voltage): 0.25 V at Iol: 1.5mA
Data out pins Vol (maximum low level output voltage): 0.6 V at Iol: 6 mA

7 Compliance Requirements

7.1 FCC Requirements for the EN1941XS

The EN1941XS one-way serial data RF module has received a Limited Modular
Grant, requiring Inovonics to retain control of the fin al installation to ensure
compliance to FCC/IC regulations. The integrator is responsible to test the final
installation to verify compliance to FCC/IC regulation for unintentional emissions.
Prior to marketing the product, the integrator must complete and submit t o Inovonics a
compliance review form and documentation, and, if requested, a functional product
sample for approval. If this is not possible, the integrator must perform the testing
themselves and submit proof to Inovonics of compliance to Part 15 of the FCC Rules
and Industry Canada RSS-210.
At the end of this guide is an Inovonics compliance review form to be filled out by the
integrator.
The integrator is also responsible for properly labeling the product containing the one­way serial data RF module. Labels must be placed on the outside of the product, and
must include a statement indicating that the product contains the module, along with
the FCC and IC number.
Example 1 “Contains One-Way Serial RF Module
FCC ID: HCQ3B6OT9OEM; IC ID: 2309A-OT9OEM (EN1941XS-IC)”
Example 2 “Contains FCC ID: HCQ3B6OT9OEM; IC ID: 2309A-OT9OEM
(EN1941XS-IC)”

7.2 Television and Radio Interference

This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installat ion.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If th is eq uipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different fro m that t o which the

receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

8 FCC Part 15 and Industry Canada Compliance

This device complies with part 15 of the FCC Rules and Industry Canada license­exempt RSS standard(s). Operation is subject to the following two conditions: (1) this
device may not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux
appareils radio exempts de lice n ce. L'exploitation est autor is é e a ux deux conditions
suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de

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