Sure-Fi, Inc. SFI-AB401-01, SFI-AB400-01, SFI-AB402-01 Operator's Manual

1

Sure-Fi Analog Bridge

Operators Manual

Doc #PI0254 Rev 1.0

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2

Sure-Fi Analog Bridge

Quick Startup

The two units that are packaged together are factory paired and will only
communicate with each other.

Check initial operation

Connect the 9V battery (included) to the 9V power cable (included) and plug the two-position connector in to
the ‘+VIN’ and ‘-VIN’ positions on the bottom connector of each unit. Once both units are powered up, the
green POWER LED should be ON solid on each unit. Press and quickly release the ‘TEST’ button to test
communication between the two units. One or more of the blue Signal-Strength LEDs should light up for one
second to indicate that successful communication has occurred.

Perform a Range-Test from the desired install locations

With the 9V batteries plugged in to each of the units, place them at the desired install location points and
perform a Range-Test by pressing and quickly releasing the ‘TEST’ button. The received signal strength is
displayed for one second on the six blue LEDs with the bottom LED indicating the minimum signal strength and
all six LEDs indicating maximum signal strength.

Connect to permanent power

Before connecting each unit to the permanent power source, ensure that it is in the 12 to 30VAC/VDC range
and can source at least 1 ampere. Connect the power at each unit and perform several Range-Tests to check
for adequate input power.

Wire the input and output functions

Using this manual as a reference, wire the required devices at each unit.

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3

Sure-Fi Analog Bridge

Table of Contents

Part Numbers

Pg. 5

Product Overview

Pg. 5

Key Features

Pg. 5

General Specifications

Pg. 6

Radio Transceiver Specifications

Pg. 6

Device Overview, Analog Receiver Interface

Pg. 7

Device Overview, Analog Sensor Interface
Receiver Interface – Top & Bottom Connector pin descriptions

Pg. 8
Pg. 9

Sensor Interface – Top & Bottom Connector pin descriptions

Pg. 10

Analog Channels

Pg. 11

Analog and Sampling Ranges, Settings, and Thresholds

Pg. 12

Relays: Operating the Relays, Relay Control

Pg. 13

Digital Inputs and Outputs (IN 1, IN 2 / OUT 1, OUT 2)

Pg. 13

Test (Range Test) Push Button

Pg. 13

LEDS: Power, Battery, Tx, Rx

Pg. 13

Antenna information

Pg. 13

Connector plug information and part numbers

Pg. 14

Chaining Multiple systems together for extended range

Pg. 14

Mounting

Pg. 15

Troubleshooting and manually testing the Relays

Pg. 17

Sure-Fi APP, downloading, installing, connecting

Pg. 18

Sure-Fi APP: Firmware Updating

Pg. 19

Sure-Fi APP: System Heartbeat time
Sure-Fi APP: Setting a Relay default state, timeout, and setting an Alert Relay

Pg. 19
Pg. 19

FCC and Industry Canada Regulatory Statements

Pg. 20

Warranty

Pg. 21

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4

Sure-Fi Analog Bridge

Figure/Table Reference Guide

Figure 1: Device Overview: Receiver Interface

Pg. 7

Figure 2: Device Overview: Sensor Interface

Pg. 8

Table 1: Receiver Interface Top Edge Connectors P1 and P2

Pg. 9

Table 2: Receiver Interface Bottom Edge Connectors P1 and P2

Pg. 9

Table 3: Senor Interface Top Edge Connectors P1 and P2

Pg. 10

Table 4: Sensor Interface Bottom Edge Connectors P1 and P2

Pg. 10

Table 5: Analog Input Ranges and Settings

Pg. 12

Table 6: Analog Output Ranges and Settings

Pg. 12

Table 7: Other Input Ranges and Settings

Pg. 12

Figure 3: DIN Clips

Pg. 15

Figure 4: Top Mounting Screw with DIN clip

Pg. 16

Figure 5: Bottom Mounting Screw with DIN clip

Pg. 16

Figure 7: Sure-Fi app start screen

Pg. 18

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5

Sure-Fi Analog Bridge

Part Numbers

SFI-AB400-01

Analog Bridge system: includes 1 ea. SFI-AB401-01 and SFI-AB402-01

SFI-AB401-01

Analog Receiver Interface

SFI-AB402-01

Analog Sensor Interface

Overview

The Sure-Fi SFI-AB400-01 Analog Bridge System consists of two units that are factory paired and ready to use
out of the box with no configuration required. The system provides a wireless connection (bridge) for analog
signals used throughout many industries such as remote monitoring applications, industrial controls, and
building automation. The Sure-Fi App provides for configuration, diagnostics, and field firmware updates.

Key Features

• Complete wireless solution for one Form C relay in each direction between units

• Two Analog Voltage (0 – 10V) Inputs/Outputs each direction

• Two Analog Current (4 – 20mA) loops from the Sensor Interface to the Receiver Interface

• Two Resistance (0 – 100K Ohm) inputs (thermistor, rheostat) on Sensor Interface which are converted

to 0 -10V linear output on the Receiver Interface.

• One digital input: dry contact or 0 to 5VDC on Sensor Interface

• One digital output on the Receiver Interface which is an open-drain output

• DIN rail mount or direct wall mount using two of the DIN clips

• Sure-Fi App connects via Bluetooth for configuration, diagnostics, and field firmware updates

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6

Sure-Fi Analog Bridge

General Specifications

Operating Voltage: 12 to 30 VAC/VDC
Operating Current: @ 12VDC: 0.05A (idle), 0.3A (transmit)
Operating Power: 3.6 Watt (peak)

Voltage Loop Inputs: Two per unit, 0 – 10V, 0.1% FS
Voltage Loop Outputs: Two per unit, 0 – 10V, 0.1% FS of the input sample

Maximum Output Current: 10mA

Current Loop Inputs: Two inputs on Sensor Interface, 4 – 20mA, 0.1% FS

Loop Voltage output: 24V default, 12V selectable with Sure-Fi App

Current Loop Outputs: Two outputs on Receiver Interface, 4 – 20mA, 0.1% FS

Loop Voltage input range: 7.5 to 24V
Output Load Resistance: 550 Ohms maximum

Resistance Inputs: Two inputs on Sensor Interface, 0 – 100K Ohm input range
Resistance Outputs: Converted to 0 – 10V linear output on Receiver Interface

Digital Input: Digital input on Sensor Interface, 0 – 5VDC max input or dry contact
Digital Output: Digital output on Receiver Interface, open drain (>100 Ω pullup)

Relay Input (R1 IN, R2 IN): 7VAC/VDC minimum turn ON, 30VAC/VDC maximum input
Relays (one per unit): One Form C solid state relay, 2A 30VDC / 30VAC

Input Sample rate: 25 milliseconds maximum
Output Update rate: Update on heartbeat and threshold cross: +/-0.1V, +/-100uA, +/-3.5% Ω.

Heartbeat time and thresholds are adjustable with Sure-Fi App.

Range: Up to 1 mile through obstructions. Greater than 50 miles line-of-sight

Multiple system pairs can be connected (“chained”) for extended range

Encryption: AES128
Operating Temperature: -13°F to +158°F (-25°C to +70°C)
Storage Temperature: -40°F to +185°F (-40°C to +85°C)
Humidity: Less than 85% RH (non-condensing)
Dimensions (L x W x H): 3.54” x 4.23” x 1.28” (90mm x 107mm x 32.5mm)
DIN mount type: 35mm DIN rail (DIN46277-3) / (DIN35)
Degree of Protection: IP20 to IEC/EN 60529

Radio Transceiver Specifications

Transmit Power: 1 Watt (30dBm)
Frequency Band: 902 – 928MHz
Channels: 72 (Frequency hopping)
Receiver Sensitivity: -133dBm
Link Budget: 163dB

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7

Sure-Fi Analog Bridge

Device Overview

Figure 1: Overview, Analog Receiver Interface

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