Prerequisite Setup, Signal Strength Rssi

Chapter 2 – Getting Started

Step 6. Using AT Commands to Verify Signal Strength and Network Registration

Important Note: Before you can use these commands, you must complete the previous steps in this chapter.

Prerequisite Setup

In order to communicate directly with the internal cellular module with AT commands, you first must disable PPP by logging into the Web Management software of the router:

1.From the workstation, open a Web browser.

2.Type the default Gateway Address: http://192.168.2.1

3.Login

After entering the Address, the Login screen displays.

•Type the default User name: admin (all lower-case).

•Type the default password: admin (all lower-case).

Note: The User name and Password are case-sensitive (both must be typed in lower-case). If Windows displays the AutoComplete screen, you may want to click No to tell the Windows OS not to remember the password; this helps maintain PC security.

•Click the Login button. The Web Management Home screen displays.

4.Select Wizard Setup.

5.On the Wizard Setup screen under PPP Configuration, disable PPP.

6.Click the Submit button.

7.Click Save & Restart.

Open the Command Window

1.From the workstation, open the command window by clicking the Start button and selecting Run.

2.Type CMD to open the command window. Click OK.

3.When the command window opens, type Telnet 192.168.2.1 5000 Note: 5000 is the port number.

3.At Login, enter the user name admin.

4.At Password, enter the password admin. Once logged in, you can use AT commands to communicate with the cellular module.

Verify Signal Strength

1.In the command window, type AT+CSQ

2.The modem responds with the received signal strength (rssi) and the channel bit error rate (ber).

RSSI ranges from 0 to 31. BER ranges from 0 to 7 (7 is the highest error rate).

Signal Strength – RSSI

10 - 31	Sufficient
0 - 9	Weak or Insufficient
99	Insufficient

Note: Sprint models will respond differently. Please refer to the CDMA AT Command Reference Guide.

Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375B)

RJ-9, RJ-45 specifications

Multi-Tech Systems offers a range of communication solutions, prominently featuring the RJ-45 and RJ-9 connectors that are crucial in networking and telecommunications. These connectors are foundational to many applications, enabling efficient data transfer and ensuring reliable voice communications.

The RJ-45 connector is primarily used in Ethernet networks. It features eight pins and is designed for high-speed data transmission, making it the standard for wired local area networks (LANs). This connector supports various Ethernet standards including Fast Ethernet (100BASE-T), Gigabit Ethernet (1000BASE-T), and even 10 Gigabit Ethernet (10GBASE-T). An essential characteristic of the RJ-45 is its versatility, as it can be used with both straight-through and crossover cable configurations. This flexibility allows for straightforward connectivity between devices such as computers, routers, and switches.

Multi-Tech Systems employs advanced technology in their RJ-45 connectors, including support for Power over Ethernet (PoE). This innovation permits electrical power and data to be transmitted over the same cable, simplifying installations and reducing the need for additional wiring. The robust design of these connectors ensures durability and minimizes signal interference, thereby maximizing data integrity during transmission.

On the other hand, the RJ-9 connector, also known as the RJ-9 or RJ-10 connector, is typically used in telephone and headset applications. Characterized by its smaller size and four or six pins, the RJ-9 is optimized for voice frequency communication. It connects devices such as telephones, headsets, and other VoIP equipment, delivering clear audio quality that is essential for effective communication.

One standout feature of the RJ-9 connector is its ability to provide superior noise resistance, making it ideal for environments with significant electromagnetic interference. Multi-Tech Systems' RJ-9 connectors are designed for ease of use, allowing quick and simple connections. These connectors can often be found in various telephony devices, ensuring that they remain a staple in personal, commercial, and industrial communication systems.

In conclusion, Multi-Tech Systems continues to lead in the provision of reliable RJ-45 and RJ-9 connectors, integrating innovative technologies that enhance performance in data and voice communication. Whether in a high-speed networking environment or in everyday telephony applications, these connectors deliver the functionality and quality demanded by modern users. Their design and engineering reflect a commitment to excellence, helping users stay connected in an increasingly digital world.

Multi-Tech Systems RJ-9 manual Prerequisite Setup, Open the Command Window, Verify Signal Strength

Models: RJ-9 RJ-45