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Trusted

PD-T8314

Issue 10 Sep 08 PD-T8314 1

Trusted

Fibre TX/RX Unit

Introduction

The Trusted

Fibre TX/RX Unit T8314 is designed to extend the Trusted

Expander Bus over

distances of up to 10km. This enables a Trusted

Expander Chassis to be located remotely from the

Trusted

system.

Note: It is recommended that if a remote Expander Chassis is to be located more than 2km from the

Controller Chassis, the route of the cable is surveyed.

The Expander Bus is extended by means of a communications link using a single mode fibre-optic

cable. The Trusted

Fibre TX/RX Unit converts the differential signals of the copper-based Expander

Bus to a fibre-optic signal for transmission via the single mode cable. Three totally independent pairs

of Trusted

Fibre TX/RX Units provide a non-interfering ‘Grey Channel’ approach to safety.

Features

• Dual 24V dc diode ORed power supply.

• Easy installation (Din rail mounting).

• Communications over a distance of 10km.

• Independent units therefore easily maintained.

• SC type connectors to two fibres (Tx & Rx).

• Low power consumption.

Summary of content (14 pages)

PAGE 1
TrustedTM PD-T8314 TrustedTM Fibre TX/RX Unit Introduction TM TM The Trusted Fibre TX/RX Unit T8314 is designed to extend the Trusted Expander Bus over TM distances of up to 10km. This enables a Trusted Expander Chassis to be located remotely from the TM Trusted system. Note: It is recommended that if a remote Expander Chassis is to be located more than 2km from the Controller Chassis, the route of the cable is surveyed.
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TrustedTM Fibre TX RX Unit T8314 Issue Record Issue Number Date Revised by Technical Check Authorised by Modification 7 Sep 05 J W Clark 8 Dec 06 N Owens I Vince P Stock Corrections 9 Nov 07 N Owens I Vince P Stock Optical Tx/Rx power Format specifications 10 Sep 08 Issue 10 Sep 08 N Owens A Holgate PD-T8314 P Stock Max length difference 2
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TrustedTM Fibre TX RX Unit T8314 Figure 1 T8314 Photo Issue 10 Sep 08 PD-T8314 3
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TrustedTM Fibre TX RX Unit T8314 Table of Contents 1. Description......................................................................................................................................7 2. Installation ......................................................................................................................................9 3. Associated Trusted 4. Cable Specification...........................................................................................................
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TrustedTM Fibre TX RX Unit T8314 Notice The content of this document is confidential to ICS Triplex Technology Ltd. companies and their partners. It may not be given away, lent, resold, hired out or made available to a third party for any purpose without the written consent of ICS Triplex Technology Ltd. This document contains proprietary information that is protected by copyright. All rights are reserved.
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TrustedTM Fibre TX RX Unit T8314 Revision and Updating Policy All new and revised information pertinent to this document shall be issued by ICS Triplex Technology Ltd. and shall be incorporated into this document in accordance with the enclosed instructions. The change is to be recorded on the Amendment Record of this document.
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TrustedTM Fibre TX RX Unit T8314 1. Description TM The Trusted Fibre TX/RX Unit T8314 is designed to be DIN rail mounted in the rear area of a TM cabinet/bay containing the Trusted Controller Chassis T8100. A block diagram of the Unit is shown in Figure 2 below: Figure 2 Trusted TM Fibre TX/RX Unit Block Diagram TM The Unit provides a communications connection interface between the Trusted and a remote Expander Chassis.
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TrustedTM Fibre TX RX Unit T8314 TM Figure 3 below shows the configuration of the Unit within a Trusted Chassis. Figure 3 Trusted TM System using a remote Expander Fibre TX/RX Unit Configuration Six Units and six fibres are required for each remote link with three located at each end. A dual 24V dc power philosophy is employed allowing the user to supply each Unit with dual power feeds. Individual Units require no configuration prior to installation within a remote communications link.
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TrustedTM Fibre TX RX Unit T8314 2. Installation TM The Trusted Fibre TX/RX Unit T8314 may be mounted on either of the TS32 or TS35 DIN rails in the horizontal or vertical position as required. Note: Allow a minimum of 200mm on either side of the Unit to allow for the fibre cable bend radius. This bend radius may vary depending upon the type of cable chosen by the user. 3.
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TrustedTM Fibre TX RX Unit T8314 4. Cable Specification TM The specification of cables used to inter-connect Trusted Parameter Value Cable type Single Mode 1300 Fibre TX/RX Units is detailed below. Min 1270 Dispersion @ 1300nm Bandwidth Unit nm Attenuation @ 1300nm Cut-off Wavelength Max 0.38 dB/km 1360 nm 3.5 nm 600 MHz Spectral Width 2.5 nm Variation in Refractive Index 0.
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TrustedTM Fibre TX RX Unit T8314 5. Pin connections 5.1. Power Connection Details Pin Service 1 +24V dc 1 2 0V1 3 0V2 4 +24V dc 2 Table 3 Power Connection Details Note: The 24V dc supplies are diode ORed to allow the Unit to be powered from a dual or single source as required. 5.2.
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TrustedTM Fibre TX RX Unit T8314 6. Specifications Voltage Range 18 to 32V dc Power Consumption (Max) 1.7W Transmitter power -15 dBm minimum Receiver sensitivity -28 dBm Maximum propagation time difference 80ns Maximum fibre length difference 15m Operating Temperature -5°C to 60°C (23°F to 140°F) Non-operating Temperature -25°C to 70ºC (-25°F to 158°F) Operating Humidity 5 to 95% RH Environmental Specifications Refer to Document 552517 Dimensions Height Width Depth 84mm (3.
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