产品描述：
Table 2-1 Features
Feature Description
Physical
dimensions
??1??71??1??778??1??71??1??775 Dimensions (L × W × H): 30 mm × 30 mm ×2.35 mm
??1??71??1??778??1??71??1??775 Weight: about 5 g
Operating
Bands
(ME909u-521)
LTE: FDD Band 1, 2, 3, 5, 7, 8, 20, all bands with diversity
WCDMA/HSDPA/HSUPA/HSPA+: Band 1, 2, 5, 8, all bands with
diversity
GSM/GPRS/EDGE: 850/900/1800/1900 MHz
GPS/GLONASS: L1
Operating
Temperature
Normal operating temperature: –20°C to +70°C
Extended operating temperature[1]: –30°C to +75°C
Storage
Temperature
–40°C to +85°C
Moisture RH5% to RH95%
Power Voltage DC 3.3 V–4.2 V (typical value is 3.8 V)
AT Commands For ME909u-521, see the HUAWEI ME909u-521 LTE LGA
Module AT Command Interface Specification.