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 Features
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One analog plus four digital channels |
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DC to 25 MHz analog bandwidth |
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Input ranges of ± 1 V and ± 5 V |
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Analog signal digitised to 12 bit precision |
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Four independent digital (TTL) channels |
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DC to 48 Mb/s data rate (each channel) |
The LTX-5515 enables the precise conveyance of one
analog channel plus four digital channels of information over fibre optic links
ranging from metres to more than 10 kilometres.
Incoming analogue data is digitised to 12-bit precision
at 100 megasamples per second and transmitted over optical fiber at one
giga-bit per second. The receiver acquires this digital data and accurately
reconstructs the analog signal at the far end of the fibre optic link.
The analogue signal bandwidth is from DC to 25 MHz (-3
dB ). Two input voltage ranges are provided, ± 1 Volt and ± 5
Volts. The input impedance of the transmitter analogue channel may be set to 50
ohms or 1 Mohm (75 ohms is optional).
Multiplexed along with the analogue data, are four
independent TTL/CMOS/LVTTL digital signals that may be toggled at rates of up
to 48 Mb/s.
Two models are available. Selection depends on the
fibre type and the length of the fiber optic link that is required. The
LTX-5515 (850 nm MM) transmits at 850 nm over multi-mode fiber optic links of
up to 250 metres in length, while the LTX-5515 (1310 nm SM) transmits at 1310
nm over single-mode fiber to span distances exceeding 10 km.
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.
Specifications
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Analogue signal bandwidth: DC to 25 MHz (-3 dB) |
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Input Voltage Ranges: +/- 1 V or +/- 5 V
(selectable) |
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Resolution: 12 bits |
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Transfer Accuracy: +/- 0.1% Full Scale, +/- 20 mV
offset |
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Signal Latency (with one metre of fibre): Approximately 300
nS |
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Sampling Rate: 100 Megasamples per second |
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Input impedance: 50 Ohms or 1 Mohm || 20 pF,
(selectable) |
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Output Drive Capabilty: +/- 5 V open circuit, +/- 2 V into
50 ohm load |
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Output impedance: 50 Ohms |
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Digital Inputs: TTL, LVTTL, CMOS compatible |
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Digital Outputs: LVTTL (0 - 3.3 V) |
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Digital Switching Rates: 0 - 24 MHz |
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Digital Signal Edge Uncertainty: 0 - 10 nS |
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Laser Wavelength: LTX-5515 (850 nm mm); 850 nm+/- 20 nm,
LTX-5515 (1310 nm sm); 1310 nm +/- 20 nm |
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Optical Transmission Rate: 2.0 Gb/S |
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Loss Budget: 15 dB max. |
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Optical Return Loss: >15 dB |
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Laser Safety Classification: Class I safety per FDA/CDRH and
IEC-825-1 regulations |
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Typical Transmission Distances (850 nm): 250m with 50/125
micron fiber, 150m with 62.5/125 micron fiber |
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Typical Transmission Distances (1310 nm): 10km with 9/125
micron fibre |
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Fibre Optic Connectors: ST Type Standard, FC available on
request |
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LED Indicators Provided: Input Overload (transmitter),
Optical Signal - ON (receiver) |
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Power Supplies: Wall Mount, Universal, US, UK. Continental
Europe, and Australian Plugs Included |
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Power Requirements: 95 - 260 VAC, 50 - 60 Hz, 16 VA
Max. |
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Operating Temperature Range: 0-40ºC |
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Transmitter Dimensions (mm): 175 L x 105 W x 40 H |
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Receiver Dimensions (mm): 175 L x 105 W x 40 H |
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Weight Each: 0.46 kg |
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Standard Warranty: Two Years, Components and Workmanship, 30
day Satisfaction Guarantee |
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Accessories Supplied: 5 pin DIN connector for digital
inputs/outputs, xmtr and receiver |
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Ordering Information
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LTX-5515T (850nm MM) |
2 x speed 850nm, multi mode, Analogue/Digital E/O
converter, with universal power supply |
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LTX-5515R (850nm MM) |
2 x speed 850nm, multi mode, Analogue/Digital O/E
converter, with universal power supply. |
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LTX-5510T (1310 nm SM) |
2 x speed 1350nm, single mode, Analogue/Digital E/O
converter, with universal power supply. |
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LTX-5510R (1310 nm SM) |
2 x speed 1350nm, single mode, Analogue/Digital O/E
converter, with universal power supply. |
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