FOM-E1/T1Installation and Operation ManualChapter 1 Introduction

1.4 Technical Specifications

E1/T1

Transmission Rates

E1: 2.048 Mbps

Interface

 

T1: 1.544 Mbps

 

 

 

Interface

User-selectable:

 

 

E1: 120balanced or 75unbalanced

 

 

T1: 100balanced

 

Zero Suppression

E1: HDB3

 

 

T1: B8ZS

 

Connectors

Balanced: 15-pin D-type, female

 

 

Unbalanced: two BNC

Optical

Operating

See Table 1-1

Interface

Wavelength

 

 

Receiver Sensitivity

For BER 10-9:

 

 

-38 dBm at 850 nm

 

 

-40 dBm at 1310 nm or 1550 nm

 

Connectors

ST, SC or FC

 

Dynamic Range

28 dB for all types of optical interfaces

 

Budget (Max)

20 dB for 850 nm over 62.5/125

 

 

22 dB for 1310 nm over 9/125

 

 

28 dB for 1310 nm or 1550 nm laser over 9/125

Alarm

Operation

Normally Open and Normally Closed, using different pins

 

Connector

15-pin, D-type, female

Indicators

POWER

ON – The unit is powered

 

TEST LOC

ON – The unit is in local loopback mode

 

TEST REM

ON – The unit is in remote loopback mode

 

ELECTRICAL LOW

ON – The electrical interface input is below G.703

 

 

electrical levels

 

ELECTRICAL AIS

ON – An “All 1s” string is received at the electrical

 

 

interface

 

OPTICAL ERR

ON – Bit error rate of the received signal from the optical

 

 

interface is 10-6or worse

 

OPTICAL AIS

ON – An “All 1s” string is received at the optical interface

Technical Specifications

1-5

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RAD Data comm E1, T1 operation manual Technical Specifications

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.