RAD Data comm operation manual Application, Features, Fiber Optic Interface, E1/T1 Interface

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Chapter 1 Introduction

FOM-E1/T1Installation and Operation Manual

 

 

Application

In the application illustrated, each FOM-E1/T1 receives E1 or T1 signals that are equalized to overcome electrical link distortion. FOM-E1/T1 then converts the E1 or T1 signals into an optical signal.

E1/T1

 

E1/T1

 

E1/T1

Coax

FOM-E1/T1

Fiber Optic

FOM-E1/T1

Coax

PBX

 

DACS

 

 

 

Figure 1-1 FOM-E1/T1 Application

Features

Fiber Optic Interface

Table 1-1details fiber optic interface types supported by FOM-E1/T1.

Table 1-1. Fiber Optic Interface Types

Wavelength

Fiber Type

Transmitter

Power

Receiver

Typical Max.

 

 

Type

 

Sensitivity

Range

[nm]

[m]

 

[dBm]

[dBm]

[km/miles]

 

 

 

 

 

 

850

62.5/125

VCSEL

-18

-38

5/3

 

multimode

 

 

 

 

 

 

 

 

 

 

1310

9/125 single

LED

-18

-40

38/24

 

mode

 

 

 

 

 

 

 

 

 

 

1310

9/125 single

Laser

-12

-40

50/31

 

mode

 

 

 

 

 

 

 

 

 

 

1550

9/125 single

Laser

-12

-40

100/62

 

mode

 

 

 

 

 

 

 

 

 

 

E1/T1 Interface

The electrical interface meets requirements of ITU G.703, G.824, G.921 and G.935 standards for E1 and T1.

FOM-E1/T1 supports both balanced and unbalanced interfaces.

FOM-E1/T1 conforms to all relevant ITU standards.

When FOM-E1/T1 detects electrical interface levels below G.703 electrical levels, the modem transmits an “All 1 signal” (AIS) to the optical interface.

Test and Diagnostics Capabilities

FOM-E1/T1’s built-in diagnostics comply with the V.54 standard.

FOM-E1/T1 features a dry contact alarm port for attaching an external alert device.

When an AIS is detected at the optical or electrical interface, the modem transparently converts the signal and alerts the user via front panel LEDs.

1-2 Overview

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Contents FOM-E1/T1 Page FOM-E1/T1 International Headquarters RAD Data Communications IncLimited Warranty General Safety Instructions Please observe the following precautionsConnection of AC Mains General Safety PracticesConnection of DC Mains Ports Safety Status TNV-2TNV-3 IsdnElectromagnetic Compatibility EMC Canadian Emission Requirements Safety Declaration of ConformityManufacturers Name Manufacturers Address Product NameInstalling FOM-E1/T1 Configuring FOM-E1/T1Jumper/Switch Function Possible Settings Factory Quick Start GuideOperating FOM-E1/T1 Connecting the CablesTo connect cables Contents List of Figures Appendix A. Interface Connector SpecificationsList of Tables Power Supply Options Chapter IntroductionOverview VersionsFeatures Test and Diagnostics CapabilitiesApplication Fiber Optic InterfacePhysical Description Functional DescriptionData/Clock Recovery Signal ConversionData Transfer Technical Specifications 1A 250V and 50 mA Temperature Humidity Up to 90%, non-condensing50 C Package Contents Chapter Installation and SetupSite Requirements and Prerequisites To install FOM-E1/T1 Installation and SetupTo configure FOM-E1/T1 When using 4-wire connection, set these switches to Floating FOM-E1/T1 PCB LayoutConnecting the Interfaces Connecting the Fiber Optic InterfaceTo connect the fiber optic cables FloatingConnecting the Power Connecting the E1/T1 InterfaceConnecting AC Power Connecting DC PowerTo connect AC power To connect DC powerFront Panel Controls and Indicators FOM-E1/T1 Front Panel Controls and IndicatorsChapter Operations Name Type FunctionOperating Instructions Turning OnNormal Operating Instructions Turning OffChapter Testing and Diagnostics Status Indicators and Alarm RelayAlarm Relay DB-15 Connector, Alarm Relay PinsDiagnostic Tests Local Analog Loopback LLBRemote Digital Loopback RLB To activate local loopbackTroubleshooting Instructions Troubleshooting ChartSymptom Probable Causes Corrective Measures OFFFrequently Asked Questions Does FOM-E1/T1 operate opposite FOM-40?Chapter FOM-E1/T1/R Card Version ASM-MN-214 Card CagePower Supply AC SupplyPower Supply Redundancy DC SupplyFOM-E1/T1/R Front Panel FOM-E1/T1/R Front PanelInstalling the FOM-E1/T1/R Card Setting Internal Jumpers and SwitchesInstalling FOM-E1/T1/R into the ASM-MN-214 Card Cage Alarm RelayBalanced E1/T1 Unbalanced E1Appendix a Interface Connector Specifications DB-15 ConnectorTable A-1. DB-15 Pin Assignment, E1/T1 Pins Table A-2. DB-15 Pin Assignment, Alarm Relay PinsCBL-E1T1/RJ45 Cable FOM-E1/T1/R Modem CardTable A-3 ASM-MN-214, DB-25 Pin Assignment Customer Response Form Excellent Good Fair Poor Very PoorPage Error Report Page Page International Headquarters

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.