Isaac Instruments WRU201 Recorder and Wireless Router User Manual

: June 5, 2024
: ISAAC Instruments

Table of Contents

Isaac Instruments WRU201 Recorder and Wireless Router
Features
Internal sensors
Operation Details
Wake-up Feature
LED description
Certification
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Isaac Instruments WRU201 Recorder and Wireless Router

The ISAAC InMetrics is a stand-alone data recorder for ISAAC Instruments’ vehicle telemetry and a wireless Internet access point. It captures and transmits the data collected from sensors and the vehicles CAN bus to the vehicle telemetry server, and also provides wireless connectivity for external devices such as the ISAAC InControl rugged tablet and ISAAC InView camera solution. The built-in components of the ISAAC InMetrics feature a GNSS, and allow for cellular, Wi-Fi and Bluetooth communication.The ISAAC InMetrics allows connecting a communication module (ex. satellite – Iridium), IDN modules (ISAAC Device Network) and 4 digital inputs.

Features

Resistant to extreme environment:
High vibration and shockproof
Water and humidity resistance
Wide operating temperature range (-40° to 85°C)
SAE J1455 compliant design guidelines
Wide voltage operating range – 9 V to 32 V, cold-cranking tolerant (6.5 V)
Excellent immunity to radio frequency interference, electrostatic discharge and high voltage transient
1.5 GB memory – data retention in case of power loss
Low power consumption with configurable sleep and wake up timer
FCC, IC and PTCRB certified
Over-the-air (OTA) software updates
Wi-Fi – WLAN 802.11 b/g/n
Cellular communication
North America
2 SIM cards
LTE (4G)
Fallback 3G
Positioning
GNSS (GPS, GLONASS, Galileo, Beidou)
High sensitivity tracking, small time to first fix
Compatible with ISAAC Instruments:
ISAAC Device Network modules (IDNxxx)
External satellite communication modules (COMSA1)
ISAAC InView camera solution

Internal sensors

3 accelerometers and gyroscopes for measuring forces on lateral, longitudinal and vertical axes
Temperature and voltage.

External ports

Diagnostic ports
3 CAN bus ports (HS-CAN 2.0A/B)
1 SAE J1708 bus port
Communication RS232 Port (COM), allows for an alternate mode of communication (ex. satellite)
4 digital inputs
Tablet recharge port

Operation Details

Circuit Protection

The recorder features built-in fuses that provide circuit protection to the entire system and peripherals. The recorder also includes protection against reverse polarity and supply over-voltage. In the event of reverse polarity (≤ 70 V) or voltage outside operating range (32 – 70 V), the recorder automatically shuts down to avoid damage, and resumes operation when voltage returns to operating range.

EMI/RFI and Electrostatic Discharge Protection

All power and signal wires connected to the system are shielded and filtered against electromagnetic/radio frequency interference to offer excellent data collection in highly radiated environments. ISAAC Instruments recorders and peripherals undergo rigorous EMI/RFI testing to ensure system reliability in the harshest environments.

Vehicle Data Ports (CAN)

The CAN 2.0 A/2.0B ports are capable of recording information from:

Diagnostic on CAN (ISO 15765)
OBD on CAN SAE J1979
SAE J1939
CAN Bus compatible electronic devices
Single frame broadcast messages with standard (11 bit) or extended (29 bit) identifiers

The SAE J1708 port is capable of recording information from SAE J1708/SAE J1587 and SAE J1922 data links.
Note: only 3 diagnostic ports can be activated simultaneously

Internal Accelerometers and Gyroscopes

The 3 accelerometers and gyroscopes measure the longitudinal, lateral and vertical forces the recorder is subjected to.

Digital Inputs

The input measures the state of an input.
The recorder can be configured to apply pull-up (default) or pull-down resistance:
- Use pull-up when signal input switches to 0 V (GND)
- Use pull-down when signal input switches to +V

Shutdown Timer

The recorder features a shutdown timer that can be used to automatically power off the recorder after a set amount of time, in order to avoid battery drainage. The shutdown timer delay is configurable.
Shutdown timer logic:
When ground or an open signal is detected to the SHTDWN cable, the countdown to power shutdown begins. (Shutdown power consumption is less than 1 µA.)
When a high signal level (3 to 35 Vdc) is detected on the SHTDWN cable, the timer is reset, and the recorder is powered on.

Wake-up Feature

The recorder includes a wake-up timer feature that can be used to communicate with the system server at regular intervals. Designed to work in conjunction with the shutdown timer, the wake-up feature lets system users know that the recorder is still functional, although it has been shut down. The wake-up time interval and duration are configurable. Automatic Over-the-air (OTA) software updates Configuration and firmware updates are completed over-the-air (OTA).

Description| Min| Typical| Max| Unit|
---|---|---|---|---|---
Electrical Specifications| ****

9

| ****

280

220

240

| ****

32

| ****

V

mA mA mA

VDP (Vehicle Data and Power) Input voltage – Vin 1

Input current @ 12.0 V Router mode

Router mode – Cellular disabled Client mode – Wi-Fi

IDN (ISAAC Device Network) Output voltage

Total output current

| ****

Vin 0.5

| | ****

Vin 500

| ****

V

mA

Environmental Specifications Operating temperature Storage temperature| ****

-40 (-40)

| | ****

85 (185)

| ****

°C (°F)

External Antenna connectors Wi-Fi

Cellular

GPS

| ****

Fakra (pastel green) 50 Ohm

Fakra (magenta) 50 Ohm Fakra (blue) 50 Ohm

|
Diagnostic Ports| ****

10

-27

-200

| ****

ISO 11898-2

| ****

1000

40

200

| ****

Kbit/sec V

V

HSCAN Interface Standard Bit Rate

DC voltage at pin CANH/CANL

Transient voltage at pin CANH/CANL

SAE J1708 Interface Bit rate

DC voltage at pin A

DC voltage at pin B

| ****

-10

| ****

9.6

| ****

15

| ****

Kbit/sec V

V

Internal accelerometer

±2G resolution X, Y and Z

| | ****

0.00195

| | ****

g/bit

Internal temperature sensor Accuracy over measuring range 2

Resolution

| | ****

±2

0.12207

| | ****

C

C/bit

Digital Inputs (A1-A4) Digital input low voltage

Digital input high voltage

Internal pull-up resistor

| ****

-35

2.3

| ****

1

| ****

1

35

| ****

V V

MW

Cellular transceiver| | | |
LTE Cat 1

Upload Download

| | ****

5

10

| | ****

Mbps Mbps

IEEE 802.11 b/g/n WAP, WEP, WPA-II

Standard

Protocols

RF frequency range| 2412| | 2472| MHz
RF data rate| 1| 802.11 b/g/n rates supported| 65| Mbps
Description| Min| Typical| Max| Unit
---|---|---|---|---
GNSS receiver

(GPS, GLONASS, Galileo, Beidou)

| | ****

-167

-148

| | ****

dBm dBm

Sensitivity

Tracking Cold start

2.5

| | ****

m

Time to first fix – (with nominal GPS signal levels -130dBm) Cold start

Hot start

| | ****

26

1

| | ****

s s

Certifications / testing method| ****

SAE J1455 ISO11452-2 (2004)

ISO11452-8 (2008)

ISO11452-4 (2011)

ISO10605 (2008)

SAE J1113-11 (2012)

Electrical

Operating voltage input Radiated immunity Magnetic field immunity

Bulk current injection immunity (BCI)

Electrostatic discharge immunity Conducted transient immunity

Environmental

Ingress protection Low temperature High temperature

Thermal shock

| ****

IP64 / SAE J1455

-40°C – MIL-STD 810G – method 502.5 / SAE J1455 85°C – MIL-STD 810G – method 501.5 / SAE J1455

-40°C to 85°C – MIL-STD 810G – method 503.5 / SAE J1455

Mechanical

Mechanical shock / crash test Random vibration

| ****

75 g – MIL-STD 810G – method 516.7 / SAE J1455

8 grms – MIL-STD 810G – method 514.7 / SAE J1455

Radiofrequency Cellular Approved carriers

Intentional emitters

| ****

PTCRB

Bell and AT&T

FCC (Federal Communication Commission)

and IC (Industry Canada)

Mechanical Specifications Height

Depth – recorder only, no attached harness Width

Weight

| ****

41 (1.6)

111 (4.4142)

142 (5.6)

225 (0.5)

| ****

mm (in)

g (lbs)

LED description

Isaac Instruments WRU201 Recorder and Wireless Router
2

STAT.

Certification

FCC Interference Notice

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference, and
This device must accept any interference received, including interference that may cause undesired operation.

Industry Canada Notice

This device complies with Industry Canada license-exempt 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.

Antenna limitation

The Wifi radio transmitter IC: 24938-1DXWRU201 has been approved by Innovation, Science and Economic Development Canada (ISED) to operate with the antenna types listed below, with the maximum permissible gain indicated. Antennas type not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.