Huawei E182E Product Manual - Page 5

HUAWEI E1820 HSPA+ USB Slider（W2100+GSM） V100R001 Product Description Contents 1 Overview ...6 2 Features ...7 2.1 Main Features ...7 2.2 Technical Specifications...8 2.2.1 Hardware ...8 2.2.2 Dashboard ...9 3 Services and Applications 11 3.1 Packet Data Service ...11 3.2 SMS...11 4 System Architecture ...12 4.1 System Architecture...12 4.2 Functional Modules ...12 5 Technical Reference...14 5.1 Layer 1 Specifications (Physical 14 5.2 Layer 2 Specifications (MAC/RLC 14 5.3 Layer 3 Specifications (RRC)...14 5.4 Layer 3 NAS/Core Network (MM/CM 14 5.5 GSM Protocol Specifications...15 5.6 GPRS Protocol Specifications...15 5.7 General Specifications...15 5.8 Performance/Test Specifications 16 5.9 SIM Specifications ...16 6 Packing List ...17 Issue 01 (2009-02-12) Commercial in Confidence Page 5 of 19