Connecting the Power

FOM-E1/T1Installation and Operation Manual	Chapter 2 Installation and Setup

Note

Warning

2.Connect the transmit fiber to the connector marked TX and the receive fiber to the connector marked RX.

3.At the remote unit connect the transmit fiber to RX and the receive fiber to TX.

Connecting the E1/T1 Interface

The rear-panel E1/T1 connector provides interface for data input/output, clock reference and control signal exchange between FOM-E1/T1 and E1/T1 equipment.

Balanced E1/T1 interface terminates in DB-15 female connector, which also serves as an alarm relay (see Appendix A for the connector pinout).

Unbalanced E1 interface terminates in two coaxial BNC connectors, designated as IN and OUT. IN refers to the FOM-E1/T1 input signal. OUT refers to a signal transmitted from FOM-E1/T1 to the attached equipment.

RAD offers an optional splitter cable for connecting the DB-15 port to the balanced E1/T1 equipment and alarm device (refer to Appendix A for further details).

The E1 and T1 ports should be connected to SELV (Safety Extra Low Voltage) links only.

To connect the power to FOM-E1/T1, refer to the appropriate section below, depending on your version of the unit (AC or DC).

Before switching on this unit and connecting or disconnecting any other cable, the protective earth terminals of this unit must be connected to the protective

ground conductor of the mains power cord. If you are using an extension cord Warning (power cable) make sure it is grounded as well.

Any interruption of the protective (grounding) conductor (inside or outside the instrument) or disconnecting of the protective earth terminal can make this unit dangerous. Intentional interruption is prohibited.

The line fuse is located in an integral-type fuse holder located on the rear panel. Make sure that only fuses of the required rating, as marked on the rear panel, are used for replacement. Do not use repaired fuses or short-circuit the fuse holder. Always disconnect the mains cable before removing or replacing the fuse. Whenever it is likely that the fuse protection has been damaged, make the unit inoperative and secure it against unintended operation.

Installation and Setup

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T1, E1 specifications

RAD Data Communication specializes in providing advanced networking solutions, particularly for E1 and T1 lines. These digital transmission systems are pivotal in telecommunications, allowing for efficient data transfer, voice communication, and multimedia services.

E1 and T1 lines are standardized digital circuits offering capacity for multiple channels. A T1 line, commonly used in North America, accommodates data transmission at a rate of 1.544 Mbps, while an E1 line, predominantly used in Europe and other parts of the world, supports a rate of 2.048 Mbps. Each line can carry multiple voice channels—up to 24 for T1 and 32 for E1—making them suitable for both voice and data services.

One of the main features of RAD's E1 and T1 solutions is their versatility. These lines can be utilized in various applications, including traditional telephony, private branch exchanges (PBXs), and modern Voice over IP (VoIP) networks. RAD's solutions enable users to seamlessly migrate from older systems to more integrated and efficient digital networks without sacrificing performance.

RAD Data Communication focuses on ensuring reliability and robustness in their E1 and T1 offerings. With built-in error detection mechanisms, such as cyclic redundancy check (CRC), these systems maintain high levels of data integrity. In addition, RAD’s devices often incorporate advanced features like Adaptive Rate Control, allowing for dynamic adjustments to accommodate varying network conditions.

Technology-wise, RAD integrates advanced protocols and features, such as Frame Relay and Multiprotocol Label Switching (MPLS), into their E1 and T1 equipment. This flexibility supports the transmission of diverse data types, ensuring users can transition smoothly between legacy systems and modern technologies.

Another characteristic that sets RAD's products apart is their management capabilities. Many devices come equipped with SNMP (Simple Network Management Protocol) support, enabling remote monitoring and management. This feature is essential for network administrators seeking to maintain optimal performance and quickly address potential issues.

Moreover, RAD's E1 and T1 solutions are designed for easy integration into existing network infrastructures. Their compact and modular design allows for straightforward installation and scalability, accommodating future growth and technology advancements without major overhauls.

In summary, RAD Data Communication’s E1 and T1 solutions are characterized by their reliability, versatility, and advanced management features. Designed to meet the evolving needs of communication networks, they ensure that users can take full advantage of both traditional and modern telecommunications technologies.