Technical description HERMES 3.0 LFT2 1. Introduction HERMES 3.0 LFT2 1.1 Intended usage The Hermes 3.0 system is a Telematic Unit(TCU) for remote-, mobility- and emergency services. This unit is designed for automotive usage and contains the features: GSM, UMTS, LTE, WLAN, GNSS. It provides different telematic services and is the interface between different types of Daimler car headunits and the public network. Therefor the car headunit generate a wireless connection with the Hermes box and over GSM/UMTS/LTE it provides access to public network. Note: The Hermes 3.0 TCU can not be connected with customer devices, only the car headunit is able to connect with the Hermes 3.0 box. 1.2 System Description The different calls can either be triggered via Airbag interface, buttons or Headunit. E-Call:
-Emergency Call to a eCall center
-Before the call 2 SMS including the MSD are sent to backend. If fails, the backend does pull the MSD via inband
-An automatic eCall is triggered if the car stops by its own if driver does not react anymore R-Call:
-Roadside/Workshop call to a Call center
-As soon the call is connected, the backend does pull the MSD via inband I-Call:
-Information call to a Call center
-As soon call is connected, basic data is send to backend via DTMF Internal Communication to Headunit (in car communication):
The Hermes 3.0 acts as a modem for the headunit. It provides internal access and is routing data from external network to the headunit. 20.Dec.2021, HERMES 3.0 LFT2 - Technical Description - Continental_v3.docx Continental Automotive GmbH | Siemensstrasse 12 | D93055 Regensburg Confidental Seite 1 von 5 1.3 Technical Description The NAD module of the Hermes 3.0 support for NAFTA market the following frequency bands:
GSM: B2, B5 UMTS: B2, B4, B5 LTE-FDD: B2, B4, B5, B7, B12, B13 The WLAN module of the Hermes 3.0 support for NAFTA market the following frequency bands:
2.4GHz Band: Channel 1-11 5GHz Band: Channel 36-48, 149-165 Channel list 802.11 2.4 GHz band with 20MHz bandwidth Channel number RF output power 1 6 11 Frequency 2412 MHz 2437 MHz 2462 MHz 13.2 dBm 13.1 dBm 12.95 dBm I III I III Channel list 802.11 5GHz band with 20 MHz bandwidth UNII Band Channel number Frequency RF output power 36 40 44 48 149 153 157 161 165 38 46 151 159 5180 MHz 5200 MHz 5220 MHz 5240 MHz 5745 MHz 5765 MHz 5785 MHz 5805 MHz 5825 MHz Frequency 5190 MHz 5230 MHz 5755 MHz 5795 MHz 9.06 dBm 8.98 dBm
<9 dBm 8.86 dBm 10.52 dBm
<10.6 dBm 10.55 dBm
<10.6 dBm 10.47 dBm 8.33 dBm 8.26 dBm 10.03 dBm 10.05 dBm Channel list 802.11 5GHz band with 40 MHz bandwidth UNII Band Channel number RF output power 20.Dec.2021, HERMES 3.0 LFT2 - Technical Description - Continental_v3.docx Continental Automotive GmbH | Siemensstrasse 12 | D93055 Regensburg Confidental Seite 2 von 5 1.4 Hermes 3.0 LFT2 product label The Hermes 3.0 label is printed with the details for FCC and Canada:
FCC ID: KR5HERMES3 Contains FCC ID: LHJ-BL28NARD1 IC: 7812D-HERMES3 Contains IC: 2807E-BL28NARD1 1.5 Compliance information USA The user manual or instruction manual for an intentional radiator shall caution the user that changes, or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. In cases where the manual is provided only in a form other than paper, such as on a computer disk or over the Internet, the information required by this section may be included in the manual in that alternative form, provided the user can reasonably be expected to have the capability to access information in that form. Sample of this statement:
Federal Communications Commission (FCC) Compliance Statement United States This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) the device must accept any interference received, including interference that may cause undesired operation. Caution FCC Warning:
Changes or modifications not expressly approved by the party, responsible for compliance, could void the users authority to operate the equipment. RF Exposure Requirements 20.Dec.2021, HERMES 3.0 LFT2 - Technical Description - Continental_v3.docx Continental Automotive GmbH | Siemensstrasse 12 | D93055 Regensburg Confidental Seite 3 von 5 The maximum reported* SAR values for Body-worn configuration for transmitting systems are shown in a table below. The device conforms to the requirements of the standards when the maximum reported SAR value is less than or equal to the limit. The SAR limit specified in FCC 47 CFR part 2 (2.1093) for Body-worn SAR1g is 1.6 W/kg. The minimum antenna distance is for WLAN 90mm and for GSM / UMTS / LTE 190mm. Following picture left show the minimum distance of 190mm between car-antenna and passenger, the right picture shows the minimum distance of 95mm between Hermes 3.0 WLAN antenna and passenger. 20.Dec.2021, HERMES 3.0 LFT2 - Technical Description - Continental_v3.docx Continental Automotive GmbH | Siemensstrasse 12 | D93055 Regensburg Confidental Seite 4 von 5 1.6 Compliance information Canada The user manual or instruction manual shall contain the following or equivalent statements in a conspicuous position:
This digital apparatus complies with DHHS rules 21 CFR. Subchapter J applicable of the date of manufacture. This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:
(1) This device may not cause interference
(2) This device must accept any interference, including interference that may cause undesired operation of the device. Cet appareil contient des metteurs / rcepteurs exempts de licence conformes aux RSS(s) dInnovation, Sciences et Dveloppement conomique Canada. Le fonctionnement est soumis aux deux conditions suivantes:
(1) Cet appareil ne doit pas causer dinterfrences
(2) Cet appareil doit accepter toutes les interfrences, y compris celles susceptibles de provoquer un fonctionnement indsirable de lapparail. For information only and not to be included in the operating instructions:
Since there are some countries that are based on the approval requirements of the USA / Canada, the general inclusion of the conformity information from above makes sense. The devices have the following approval IDs in the USA / Canada:
FCC ID: KR5HERMES3 Contains FCC ID: LHJ-BL28NARD1 IC: 7812D-HERMES3 Contains IC: 2807E-BL28NARD1 These approval IDs can be found on the device label. The compliance information for FCC and Canada are printed inside the owner manual and could be download at following webpage:
https://www.mbusa.com/en/owners/manuals 20.Dec.2021, HERMES 3.0 LFT2 - Technical Description - Continental_v3.docx Continental Automotive GmbH | Siemensstrasse 12 | D93055 Regensburg Confidental Seite 5 von 5