DPX™ Extension System

DPX™ Fiber Based Extension System

Multi-Band Fiber Optic Extension Solution

DPX™ Extension System

DPX™ Base Interface Unit

Tunnel Radio’s DPX System keeps your train seamlessly

connected through any environment. With our unique fiber

optic network, up to 6 GHz of bandwidth may be extended

through mountainous terrain and tight curves. Remote nodes

create cells to fill coverage needs and provide a hot standby

solution. Eliminate coverage issues and stay connected with

your trains in any location.

● Distributed Power Capable – 450 MHz

●Positive Train Control Capable – 220 MHz

● Voice Capable – 160 MHz

● Low Component Count – Easy Installation

● Remote Diagnostics – IP Visible Host for Monitoring

FEATURES and BENEFITS

Overview of DPX™ System

Network

GE

LOCOTROL

® Repeater

DPX™ Fiber Optic Base

Interface

Fiber Demarc

Panel

Fiber

Demarc

Panel

DPX™ Fiber Optic

Remote Interface

Fiber Optic Cable Fiber Optic Cable

DPX™ Extension System

General Specifications for DPX™ Base Interface

U.S. Patent Number 6041216 A

General Electrical Specifications (typical), TRL- 450 or TRL-450HP

Bandwidth, Rx, Tx 6 GHz 160, 220 and 450-470 MHz standard

Gain, Rx, Tx (adjustable) 20dB Standard or 30 dB High Power, depending on configuration

Noise figure, Rx, Tx 4 dB

TMS Remote diagnostics, local and network compatible (IP) remote read capable

TMS, uplink option for simplex polling, RX RSSI, Po, VDC for base and remote node

Impedance 50/75 Ω

Power Out Up to +33dBm

Uplink Sensitivity -100 dBm

Power Consumption 1 Amp @ 12VDC-120VAC/Battery backup

FSK/QRSP Compatible GE LOCONTROL/PTC

Fiber Optic Specifications

Fiber Type

Single Node, 1 Fiber Pair per Remote

Connector Type SC/APC

Distance Between Nodes Up To 15 Miles

Enclosure

Remote Dimension 16” x 20” x 6”

Standard UL 508A Listed: Type 12, 13; File No. E61997 cUL Listed

Number of Clamps 4

Body Gauge 16

Head Rack Unit 19”X 6 X 12”

Contact Tunnel Radio for System Design Assistance