Isaac Instruments WRU201 Recorder and Wireless Router User Manual
- June 5, 2024
- ISAAC Instruments
Table of Contents
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)
-40 (-40)
| | ****
85 (185)
85 (185)
| ****
°C (°F)
°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
-10
| ****
9.6
| ****
15
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
Frequencies| | |
LTE 4G band| B2(1900), B4(AWS1700), B12(700)| | MHz
3G band| B2(1900, B4(AWS1700), B5(850)| | MHz
Wi-Fi transceiver| ****
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
Differential GPS| RTCM, SBAS (WAAS, EGNOS, MSAS, GAGAN, QZSS)
Update rate| | 1| | Hz
Position accuracy (CEP) GPS + GLONASS| | ****
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)
mm (in)
mm (in)
g (lbs)
LED description
STAT.
No LED| Unit is powered off
Blinking LED| Not recording
Solid LED| Recording
CODE
Solid LED| System update in progress
1 blink – pause| Low voltage detected
2 blinks – pause| Recorder not level (> 0.1g)
4 blinks – pause| Internal communication fault
Wi-Fi / BT
No LED| Wi-Fi / BT starting
Solid LED| No Wi-Fi / BT module connected
Blinking LED| Wi-Fi / BT module connected
SERV.
Solid LED| No communication with ISAAC server
Blinking LED| Communication with ISAAC server is active
LTE
No LED| Cellular starting
Solid LED| No communication with cellular network
Blinking LED| Communication with cellular network active
GPS
No LED| No position received
Blinking LED| Valid position received
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.
| ISAAC Part number | Antenna type | Impedance (Ohm) | Peak gain (dBi) | Photos |
|---|---|---|---|---|
| WRLWFI-F01 | Omnidirectional |
external
| 50| 3.5| 
WRLWFI-F04| Omnidirectional external| 50| 2.6|