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"Signal Transporter" LTX-7215

Signal TransporterFeatures

 The LTX-7215 Bidirectional Fiber Optic Link multiplexes one analog signal along with up to 4 independent TTL/CMOS/LVTTL digital channels to over 10 kilometers with a single fi ber.

 The incoming analog data is digitized to 12 bit precision at 100 mega samples per second and the digital channels operate at data rates of 0 to 50Mb/s. This is then transmitted at 2 Gb/s second for distances up to 10 kilometers.

 The digital signal is then received and the analog signal is accurately reproduced at the far end of the fibre optic link.

 The analog signal bandwidth may be from DC to 25 MHz (-3dB).

 The LTX-7215 has input voltage ranges of ±1 Volt or ±5 Volts.

 The input impedance of the analog channel may be set to 50 ohms or 1 megohm (75 ohms is optional).

 The LTX7215 series has a battery option that will allow for up to 3 hours of operation for experiments at extremely high potentials.

 Applications include data acquisition for plasma physics experiments, signal transmission and control of equipment at high voltage potentials, transmission of high quality video, and precise noise-free signal transmission in hostile EMI environments.

Signal Transporter




Laser Wavelength 1310 nm +/- 20 nm

Optical Transmission Rate 2.0 Gb/S

Loss Budget 7 dB

Laser Safety Classification Class I safety per FDA/CDRH and IEC-825-1 regulations

Typical Transmission Distances 10 km with 9/125μm (SM) fibre

Fibre Optic Connectors ST standard, FC available upon request

Analog Connector BNC

Digital Connector (Cable and Breakout Board Supplied)

LED Annunciators Provided Input Overload, Optical Signal and Power

Power Supplies Wall Mount, Universal, US, UK, Continental Europe and Australian plugs included

Power Requirements 95 - 260 VAC, 50 - 60 Hz, 16 VA Max.

Batteries/hrs of Operation 6 AA NiMH / 3 hrs

Operating Temperature Range 0 - 40 C

Transmitter Dimensions ( mm ) 214 L x 114 W x 59 H

Weight (each) 0.578 Kg

Analog Channels

Number of Analog Channels 1

Analog Signal Bandwidth DC to 25MHz (-3 dB)

Resolution 12 Bits

Input Voltage Ranges +/- 1 V or +/- 5 V

Transfer Accuracy +/- 10 mV offset, +/- 0.1% Full Scale(100Hz sine wave 8v pk-pk)

Output Impedance 50 Ohms

Output Drive Capability +/- 5 V open circuit, +/- 2 V into 50 ohm load
Input Impedance 50 Ohms or 1 Megohm || 20 pF, (selectable)

A/D Sampling Rate 100 Mega samples p/s

Digital Channels

Number of Digital Channels 4

Digital Inputs TTL, LVTTL, CMOS compatible

Digital Outputs LVTTL ( 0 - 3.3 V)

Signal Latency (with one meter of fi ber) Approximately 300 ns

Digital Channel Switching Rate 0 - 50 Mb/s

Digital Signal Edge Uncertainty 0 - 10 ns


Ordering Information


 Singlemode, 2 Gbps Analog/Digital Fibre Transceiver


 Singlemode, 2 Gbps Analog/Digital Fibre Transceiver with Battery Pack

Useful Documents


LTX-72x5 datasheet - pdf (90K)

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