Mercedes-Benz HERMES 2.0 Manual page 11

CPM-QE/ RCM
3.1.7 WLAN Interface Hermes 2.0, 2.1
Hermes 2.0 does not support any Bluetooth. The WLAN solution of Hermes 2.x based on CWM-
07/71 modules manufactured by WNC. CWM-07 and CWM-71 modules provide the same
functionality are pin compatible but are base on different SoC. CWM-07 is based on Cypress SoC
BCM89342 and CWM-71 on Cypress BCM89359. Both SoC have the same die but different
packages.Therefore both modules use the same configuration files. Modules are calibrated during
production and calibration process and data are stored in the internal OTP memory. There are two
variant of CWM-07/71 modules, CWM-07/71-25 and CWM-07/71-2255. The table belowe provides
mapping between Hermes's version, variants and used modules.
Hermes 2.0
UMTS variant CWM-07-25
LTE variant CWM-07-2255
The table below shows the Block diagram of the CWM-Modules that are used in Hermes 2.x
HERMES 2.0
WLAN/BT Module CWM-07-25
WLAN RF 5G Core 1
WLAN RF 2G4 Core 1
WLAN RF 5G Core 0
37.4MHz BCM89342
WLAN RF 2G4 Core 0
WLAN/BT Module CWM-07-2255
WLAN RF 5G Core 1
WLAN RF 2G4 Core 1
WLAN RF 5G Core 0
37.4MHz BCM89342
WLAN RF 2G4 Core 0
WLAN Parameter:
Supported standards:
802.11a data rates of 6, 9, 12, 18, 24, 36, 48, and 54 Mbps
802.11b data rates of 1, 2, 5.5 and 11 Mbps
802.11g data rates of 6, 9, 12, 18, 24, 36, 48, and 54 Mbps
802.11n data rates of MCS0 ~MCS7 HT20 and HT40
802.11ac data rates of MCS0 ~MCS9 HT20, HT40 and HT80
802.11e Quality of service (QoS)
802.11h transmit power control
No DFS support
Host Interface: PCIe
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CONFIDENTIAL / ALL RIGHTS RESERVED
Manual Hermes
Hermes 2.1
CWM-71-25
CWM-71-2255
HERMES 2.1
RF Port 1
FEM Diplexer
FEM Filter
RF Port 2
FEM Diplexer
FEM Filter
RF Port 1
FEM Diplexer
FEM Filter
Frequenz:
Modulation:
Typical RF power: 15dBm ±2dBm
Antenna:
Antenna gain UMTS variant (RF port 1) :
Antenna gains LTE variant:
Technology
SISO
MIMO
WLAN/BT Module CWM-71-25
WLAN RF 5G Core 1
WLAN RF 2G4 Core 1
WLAN RF 5G Core 0
BCM89359
37.4MHz
WLAN RF 2G4 Core 0
WLAN/BT Module CWM-71-2255
WLAN RF 5G Core 1 FEM
WLAN RF 2G4 Core 1 FEM
WLAN RF 5G Core 0 FEM
BCM89359
37.4MHz
WLAN RF 2G4 Core 0
FEM
2,401-2,4835 GHz; 5,160GHz - 5,835GHz
BPSK, DBPSK, QPSK, DQPSK,
8PSK, 16QAM, 64QAM, 256QAM
internal PCB antenna
2G4 band : 5,7 dBi
5G band : 4,0 dBi
RF Port1: 2G4 band: 5,7 dBi; 5G band: 4,0 dBi
RF Port2: 2G4 band: 5,2 dBi; 5G band: 4,8 dBi
Regulatory Compliance Management
Band Concurency
No
No
RF Port 1
FEM Diplexer
FEM Filter
RF Port 2
Diplexer
Filter
RF Port 1
Diplexer
Filter
2018-05-30 16:03:00
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