5 Wireless Communication

5.1 WiFi

The ED-CM4IND supports dual-band WiFi (2.4GHz & 5GHz).

2.4GHz Band

ParameterCharacteristics
Frequency Range802.11b/g/n (HT20): 2412-2472MHz
802.11n (HT40): 2422-2462MHz
Modulation802.11b: DSSS
802.11g/n: OFDM
Channel Spacing5MHz

5GHz Band

ParameterCharacteristics 
Frequency Range802.11a/n/ac: 5150-5350MHz, 5470-5725MHz, 5725-5850MHz
ModulationBPSK
Channel Spacing5MHz

5.2 Bluetooth

The ED-CM4IND supports Bluetooth 5.0.

ParameterCharacteristics 
Frequency Range2402-2480MHz
ModulationGFSK/DPSK
Channel Spacing2MHz

5.3 4G LTE

The ED-CM4IND includes a Mini PCIe interface for connecting 4G LTE modules, supporting multiple 4G modules.

4G ModuleSupport CountrySupported Frequency Band
EC20-CEChina/India LTE FDD: B1/B3
LTE TDD: B38/B39/B40/B41
TDSCDMA: B34/B39
WCDMA: B1
CDMA 1x/EVDO: BC0
GSM: 900/1800MH
EC25-AFXNorth America LTE-FDD: B2/B4/B5/B12/B13/B14/B66/B71
LTE-TDD
WCDMA: B2/B4/B5
GSM/EDGE
EC25-AUXLatin America/Australia/New Zealand LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B28
LTE-TDD: B40
WCDMA: B1/B2/B4/B5/B8
GSM/EDGE: B2/B3/B5/B8
EC25-EUXEMEA/Thailand LTE-FDD: B1/B3/B7/B8/B20/B28A
LTE-TDD: B38/B40/B41
WCDMA: B1/B8
GSM/EDGE: B3/B8

5.4 Antennas

5.4.1 4G LTE Antenna

ParameterCharacteristics
Antenna TypeExternal Antenna
Frequency BandsLTE-FDD, LTE-TDD
Frequency Range698-894MHz, 1710-2200MHz, 2496-2690MHz
Antenna Gain2 dBi
Impedance50 Ω

5.4.2 WiFi/BT antenna

ParameterCharacteristics
Antenna TypeExternal Antenna
Frequency Range2400-2500MHz, 5150-5850MHz
Antenna Gain2 dBi
Impedance50 Ω