M R V C o m m u n i c a t i o n s , I n c . – I n s t a l l a t i o n M a n u a l

APPENDIXE

TereScopes Bench Test Procedure

Introduction

All TS Products are bench tested indoors prior to outdoor installation to ensure that the system is fully functional.

The bench test is a simple procedure whereby a link pair is aligned on the table and activated to simulate a channel of communication (see fig.1).

2 Points to Remember

1.Since the link distance during the bench test is very short (i.e. the devices activated are very close), the receivers will go into saturation unless the signal is attenuated.

To avert entering saturation, the transmit signal must be physically attenuated.

We recommend the simple procedure of inserting a piece of paper or the like into the beam path, or concealing a portion of the beam with an opaque (non-transparent) material. This will reduce the signal power entering the receiver.

Make sure to attenuate the signal enough so that the receiver’s optical power meter value falls below the saturation estimate of the device. See table below for saturation estimate.

2.An additional derivative of the short link distance is the presence of reflections.

The signal will reflect off the front window of the receiver back at the transmitting device and may be mistaken as part of the opposite transmission.

This interference is commonly called “cross talk”.

To avoid cross talk during the bench test, it is advisable to check whether interfering reflections exist by shutting off power to one device and verifying that the optical power meter reading in the other (active) device is zero.

This should be repeated for the opposite device. Alternatively, a practical setup for bench testing the 4” series (models B, C and D) and Light series (models A and C2) is presented in Figure 1; the bench test setup for the 10” series (models E and F) is presented in Figures 2a,2b.

In the 4”/Light setup, a thin physical barrier, such as a piece of cardboard, is used as a wall to divide between the beam paths, thus ensuring that no cross talk occurs.

In the 10” setup, the two devices are not centrally aligned; instead, only one corner of each device faces the opposite device. This allows for testing each transmitter separately. By rotating the devices

45degrees, the next pair of transmitters is tested. Hence, testing all

8transmitters in the link pair requires only 4 rotations.

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MRV Communications TS5000/ETH/V*, TS5000/XYZ/V**, TS5000/4U1/V*) installation manual Introduction, Points to Remember
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TS5000/ETH/V*, TS5000/XYZ/V**, TS5000/XXX (TS5000G/XYZ/V**, TS5000/4U1/V*) specifications

MRV Communications has established a strong reputation in the networking industry, known for delivering innovative solutions that enhance the performance and reliability of communication systems. One of their standout product lines is the TS5000 series, which includes models such as TS5000/4U1/V*, TS5000/XXX, TS5000G/XYZ/V**, TS5000/XYZ/V**, and TS5000/ETH/V*. These devices are engineered to meet the growing demands of modern networks, providing a range of features that cater to various connectivity needs.

The TS5000 series is designed with versatility in mind, accommodating multiple deployment scenarios in both enterprise and service provider environments. One of the key features of the TS5000 models is their comprehensive support for multi-service operations. This means they can seamlessly handle different types of traffic including voice, video, and data, making them ideal for organizations that require robust communication solutions.

Incorporating state-of-the-art technologies, the TS5000 series supports various networking protocols and standards. This interoperability ensures compatibility with a wide array of existing network setups, allowing for easier integration and reduced overhead costs. The series utilizes advanced Ethernet technologies that enhance bandwidth efficiency and support high-speed data transfers.

Reliability is another hallmark of the TS5000 series. These devices are built with redundancy in mind, featuring hot-swappable components and failover capabilities that minimize downtime. This is critical for organizations that cannot afford interruptions in service, such as those in the finance or healthcare sectors.

Security is also a priority in the design of the TS5000 series. With built-in encryption and secure access controls, these devices help organizations protect sensitive data from cyber threats. The management interface is designed for ease of use, allowing IT teams to monitor and configure the system effortlessly.

Another notable characteristic of the TS5000 series is its scalability. Organizations can start with a basic configuration and expand their network capabilities as their needs grow. This flexibility makes the TS5000 an ideal choice for businesses aiming for future growth.

In summary, the MRV Communications TS5000 series represents a comprehensive solution for today's networking challenges. With its focus on multi-service support, advanced technology, reliability, security, and scalability, the TS5000 models are well-equipped to serve the demands of diverse environments, making them a valuable addition to any network infrastructure.
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