Continental HNA10 Telematics Control Unit Instruction Manual
- June 5, 2024
- Continental
Table of Contents
Model: HNA10_00
Installation Instructions for
Telematics Control Unit
RAMSES
(“Router And Mobile SErviceS”)
INTRODUCTION
The Telematics Control Unit (TCU) described herein is a vehicle-mounted
Telematics control unit designed and manufactured by Continental for exclusive
use by a premium automotive OEM. The product name has been designated by the
customer as RAMSES (Router And Mobile SErviceS). The TCU contains an embedded
LTE wireless communication module and interacts with remote call/data centers
to provide valuable services to the vehicle customer.
1.1 PURPOSE AND SCOPE
This conditions document is to provide installation instructions to OEM to
ensure safe use of the device.
1.2 TCU FUNCTIONALITY
The RAMSES TCU provides LTE advanced connectivity to the vehicle and
interfaces to the vehicle head unit as well as the Ethernet bus. The TCU is
designed to
- initiate automatic emergency calls if an automatic emergency call trigger is received;
- allow initiation of a Manual Emergency Call by a car occupant;
- allow manual initiation of Roadside Assistance or Information Calls by a car occupant;
- establish Data Packet Connection with telematics service;
- establish a Data Packet Connection to support the internet connection of Head Units equipped with WiFi (Head Unit is not Continental’s product).
ELECTRICAL HARDWARE DESCRIPTION
2.1 POWER & GROUNDING
The power supply subsystem for the Ramses TCU conditions unfiltered fused
vehicle battery input and distributes the necessarily regulated voltages
required for each of the subsystems and circuits in the design.
Vehicle battery nominal is defined as:
Nominal 13.5V (The operating voltage range as UBmin=6V, UBmax=16V)
2.2 TCU INTERFACE TO EXTERNAL RF SIGNALS
These connectors provide a coaxial connection for RF signals for LTE and GPS
connectivity to antennas. They are populated as needed for each variant
technology.
Dual Fakra (Blue / Code C)
1| GNSS IN
2| GNSS OUT
Key:
Dual Fakra (Beige / Code I)
1| DRX0 / Backup
2| Primary TX/RX
2.3 AUDIO SUBSYSTEM
The Ramses TCU audio system will provide a hands-free user interface for
emergency Telematics calling within a vehicular environment. The user
interface is realized through the seamless connection between the Ramses TCU
module and the vehicle.
At a glance, Ramses audio system shall provide the following interfaces.
- Microphone front end input with switchable bias
- Amplified speaker driver via class D amplifier
- Speaker load diagnostics and protection via PA I2C
- Support for digital audio IO via HDBaseT
- Hands-free processing and prompt playback realized by the SOC
LABELING
TCU labeling complies with the regulatory homologation compliance mark(s) that are required by law in the country.
VEHICLE INSTALLATION GUIDELINES
Normal operating conditions are between -40ºC to +80ºC
The sheet metal cover is designed to be a heat sink. A gap between the heat
sink and the mounting surface is recommended to facilitate heat transfer out
of the module. Exceptions can be made if the module is mounted to a surface
that can help facilitate heat transfer such as a large aluminum body panel.
WARNING: When the temperature of the device is above 70oC, the metal
cover will be hot.
DO NOT TOUCH.
The device does not have sealed connectors. It is designed to meet Class I
water intrusion conditions (no drip test required), so it should not be placed
in an area that can get wet.
Continental recommends that the automotive OEM uses the mating harness
supplier’s recommendations for the keep-out zone around the connectors to
ensure proper mating of each connector.
Changes or modifications to this system by other than a facility authorized by
Continental could void authorization to use this equipment.
REGULATORY COMPLIANCE NOTES
FCC:
This device complies with Part 15, Part 22(H), Part 24(E), and Part 27 of the
FCC Rules. The device contains FCC ID LHJ-WT50NA02. Operation is subject to
the following two conditions:
- This device may not cause harmful interference.
- This device must accept any interference received, including interference that may cause undesired operation.
INDUSTRY OF CANADA:
This device complies with Industry Canada’s license-exempt RSS. Operation is
subject to the following two conditions:
- This device may not cause interference; and
- This device must accept any interference, including interference that may cause undesired operation of the device.”
This device contains a radio transmitter with IC ID 2807E-WT50NA02 and has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.
EXTERNAL ANTENNA REQUIREMENTS FOR USE WITH HNA10_00 TCU
The HNA10_00 device is for use with external antennas ONLY.
This radio transmitter (FCC ID: LHJ-WT50NA02; IC: 2807E-WT50NA02) has been
approved by FCC and Industry Canada to operate with the antenna types listed
below with
the maximum permissible gain indicated. Antenna types not included in this
list, having a gain greater than the maximum gain indicated for that type, are
strictly prohibited for use with this device.
INSTRUCTIONS TO OEMs
The OEM must inform the end-user (i.e. the owner/driver of the car with this device installed) that “The installation of HNA10_00 with its radio transmitters and antennas is in compliance with the U.S. and CANADA RF Exposure Regulations”. This text, or similar, must be included in the car manual.
Antenna Information:
Only the same or equivalent-type antennas as shown below have been evaluated
and may be used with this module. Other un-equivalent-type antennas may
require additional
authorization for operation. The equivalent type means the same antenna type
that results in similar in-band and out-of-band radiation patterns.
For incorporation in the Vehicle platform (the distance from the antenna to
the user according to OEM installation requirements):
| Brand | Model Name | Antenna Type | Connector |
|---|---|---|---|
| CONTINENTAL | USA A-MID | External roof-mounted | Fakra |
With antenna Gain as listed in the table below:
Band| Total System Gain Antenna
Ce113 component, dBi
---|---
GSM-850| –1.0
GSM-1900| 1.
WCDMA II| 1.
WCDMA IV| 0.6
WCDMA V| –1.0
LTE B2| 1.
LTE B4| 0.6
LTE B5| –1.0
LTE B7| 2.0
LTE B12| 0.
LTE B13| 0.2
LTE B 66| 0.6
Antenna Placement:
This device is authorized for installation in qualified vehicles that can
provide enough minimum separation distance. To ensure RF exposure compliance
the antenna(s) used with this module must be installed in vehicles to provide
a minimum separation distance, in all operating modes and orientations of the
vehicles. The separation distance is measured from the antenna and the
passengers in all directions for potential exposure conditions. This module
must not be co-located with any other RF modules or transmitters. Additional
SAR evaluation and FCC equipment approval would be required if other RF
modules or transmitters are co-located with this module. The required minimum
separation distance for the antenna placement is 1.2cm.
Continental Pripriotary Confidential
Documents / Resources
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Continental HNA10 Telematics Control
Unit
[pdf] Instruction Manual
WT50NA02, LHJ-WT50NA02, LHJWT50NA02, HNA10 Telematics Control Unit, Telematics
Control Unit
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