Archived: Emona FOTEx Specifications

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Overview



Technical Specifications for the Emona FOTEx add-in board for the NI ELVIS platform.

Contents

NI ELVIS Functions

NI ELVIS Platform functions available at the FOTEx front panel:

All NI ELVIS functions provided are directly connected to the NI ELVIS signals, and their performance is in accordance with NI ELVIS specifications.

Digital I/O:

Digital inputs D IN-0 to IN-3

Digital outputs D OUT-0 to OUT-3

Function Generator:

Input VCO IN;

Outputs FUNCTION OUT and SYNC OUT

Analog I/O:

Inputs ACH0 and ACH1

Outputs DAC0 and DAC1

Variable Power Supplies:

Outputs "+" and "-"

FOTEx Functional Modeling Blocks

Amplifier

Bandwidth DC to approx 500kHz

Gain 0 to 10

Fiber Optic Couplers

Fiber Optic Device four port coupler, two identical couplers provided

Coupler Characteristics

Strong Path port-to-port loss typically 4.5dB, A to D and B to C

Weak Path port-to-port loss typically 6dB, A to C and B to D

Back Reflection typically 21dB, A to B and C to D

Fiber Optic Connector System single way, 'dnp' (dry non-polish) system

Fiber Optic Cable 1000um, polymer, single core fiber optic cable, sheathed in polyethylene

Fiber Optic Receiver

Fiber Optic Device high speed, low noise PIN photo diode, 800nm peak spectral input

Fiber Optic Connector System single way, 'dnp' (dry non-polish) system

Fiber Optic Cable 1000um, polymer, single core fiber optic cable, sheathed in polyethylene

Outputs TTL level digital signal, and, standard FOTEx level analog signal

Output Frequency Range DC to > 1MHz

Fiber Optic Transmitters Red/Green

Input TTL level digital signal, or standard FOTEx level analg signal, switch selectable

Input Frequency Range DC to > 1MHz

Fiber Optic Device - RED high radiance LED, 660nm peak spectral output

Fiber Optic Device - GREEN high radiance LED, 530nm peak spectral output

Fiber Optic Connector System single way, 'dnp' (dry non-polish) system

Fiber Optic Cable 1000um, polymer, single core fiber optic cable, sheathed in polyethylene

Fiber Optic WDM Filters Red/Green

Fiber Optic Device red and green wavelength filters

Filter Characteristics

Red Filter Loss typically 6dB

Green Filter Loss typically 7dB

Extinction of the other Wavelength typically 18dB

Fiber Optic Connector System single way, 'dnp' (dry non-polish) system

Fiber Optic Cable 1000um, polymer, single core fiber optic cable, sheathed in polyethylene

Headphone Aplifier

Output power 125mW, stereo socket

Headphone Type and Connector 3.5mm stereo, > 8ohm impedance

Line Code Encoder

Input data from Sequence Generator "X" or "Y" data sequence

CLK same digital-level clock as Sequence Generator CLK signal, fmax > 100kHz

Output LINE-CODE signal +/-2Vp-p

Lowpass Filters

3kHz Lowpass Filter F[sub]cut-off[/sub] = 3kHz +/- 5%

Maximum input +/- 4Vpk

Gain = 1.2

Type: 4th order Butterworth

1kHz Lowpass Filter F[sub]cut-off[/sub] = 1kHz +/- 5%

Maximum input +/- 4Vpk

Gain = 1.2

Type: 4th order Butterworth

Master Signals

Output Frequencies

100kHz digital signal (high speed sample clock)

10kHz sample clock (sub-multiple of the high speed clock)

2kHz sinusoidal and digital (sub-multiple of the fast clocks)

500Hz digital (slow speed sample clock)

Output Levels

4V pk-pk, analog

Digital level, 0V to 5V

PCM Bit Clock Regenerator

Input PCM data stream generated with a 100kHz bit clock

Output 100kHz bit clock

Signal Levels 0 to 5V digital signals

PCM Encoder

Input Vin +/-2.5V, DC coupled

Bit Clock Input <=100kHz, digital-level

Output Signal serial, digital-level data stream in offset binary format

Output Format 7 bit data plus embedded Frame Sync

Frame Synchronization FS synchronization signal coincident with frame's LSB

TDM Mode two input Time Division Multiplex system

PCM Decoder

Input PCM Data serial, digital-level data stream in offset binary format

Input Format 7 bit data plus embedded Frame Sync

Bit Clock Input <=100kHz, digital-level; positive edges of CLK & PCM DATA coincident

Output Signal approximately +/-2V, DC coupled

TDM Mode two channel TDM system, set by PCM Encoder module's PCM/TDM Switch

Sequence Generator

Input Clock Range TTL 1Hz to 200kHz

Number of Sequences 2, X and Y

Sequence Lengths X = 31 bits, Y = 255 bits

Sync indicates start of sequence X

Speech

Microphone electret-type with frequency response of 500Hz to 3kHz

Output typically 0.2Vrms

System Specifications

MANUAL/PC-CONTROL MODES

All front panel controls can be varied either manually or via PC-control.

PC-control can only be implemented by NI LabVIEW and DAQmx interface via NI ELVIS edge connector

PC-control software interfaces:

FOTEx SFP, FOTEx Toolbar SFP and FOTEx low level VIs

STANDARD ACCESSORIES

Patch Cords 20 x 2mm-2mm stackable patch cords

Scope leads 3 x 2mm-to-BNC coaxial oscilloscope leads

DMM leads 2 x 2mm-to-4mm patch cords

Fiber Optic Patch Cord Short 6 x 50cm Fiber Patch Cord

Fiber Optic Patch Cord Long 1 x 100cm Fiber Patch Cord

Fiber Optic Bulkhead Connector 2 x Bulkhead connectors

Headphones 1 x lightweight stereo headphones, 24ohm, 3.5mm male stereo plug

Documentation 1 x User Manual; 1 x Experiment Manual

Software FOTEx Manuals in soft format

COMMON ELECTRICAL SPECIFICATIONS

Input impedance: typically 50kohm

Output impedances:

    Analog signals: 330 ohm

    Digital signals: 1k ohm

Maximum allowable input voltage: +/- 12V

Maximum output voltage: +/- 12V

COMMON OPTICAL SPECIFICATIONS

Fiber Optic Connector System single way, 'dnp' (dry non-polish) system

Fiber Optic Cable 1000um, polymer, single core fiber optic cable, sheathed in polyethylene

Fiber Optic Cable Minimum Bend Radius 100mm

Fiber Optic Cable Attenuation typically 200dB/km at 665nm and 1500dB at 820nm

POWER SUPPLY

Power Source supplied via NI ELVIS edge connector

+5, +15, -15 rails consume <200mA each

ENVIRONMENTAL

Operating Temperature Range 10 to 30 degrees C

Storage Temperature Range 5 to 40 degrees C

Humidity up to 90% RH, non-condensing

PHYSICAL

Dimensions front panel 280 x 215mm;

 

Additional Resources


Product Page: NI ELVIS II/Emona Telecommunications Bundle

Frequently Asked Questions for Emona FOTEx: Part 1
Frequently Asked Questions for Emona FOTEx: Part 2
Frequently Asked Questions for Emona FOTEx: Part 3