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MEMS SWITCHES SCBU NxM

SCBU:  Customizable fiber optic switch and Non-blocking Matrix up to 16x16

Sercalo's fiber optic SCBU NxM switches are bidirectional opto-mechanical switches based on coaxial design where a matrix of MEMS mirrors redirects light from N inputs to M outputs. The optical networks can be based on a strictly nonblocking matrix (from 4x4 up to 16x16 ports) or on a tree structure (up to 1x1116 ports).

The miniature package withstands rugged environments and is well suited for direct mounting on printed circuit boards.

The underlying MEMS technology results in low insertion loss and low cross-talk between channels while keeping a constant switching performance over life. The hermetically sealed MEMS and the laser welded collimators guarantee broad temperature range and superior long term stability. The part is designed to conform to Telcordia 1221 reliability standards. No epoxy is present in the optical path.

# FEATURES APPLICATIONS
1 • Fast switching time • Optical network reconfiguration
2 • Low insertion loss • Reconfiguration
3 • Optical network protection and restoration • Optical Subsystems
4 • Compact design • Instrumentation
5 • UART, I2C/SMBus and USB interfaces • Test and measurement
6 • Custom networks available on request • Medical
6 • RoHS compliant • Telcecom Network

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OVERVIEW

Sercalo's fiber optic SCBU NxM switches are bidirectional opto-mechanical switches based on coaxial design where a matrix of MEMS mirrors redirects light from N inputs to M outputs. The optical networks can be based on a strictly nonblocking matrix (from 4x4 up to 16x16 ports) or on a tree structure (up to 1x1116 ports).

The miniature package withstands rugged environments and is well suited for direct mounting on printed circuit boards.

The underlying MEMS technology results in low insertion loss and low cross-talk between channels while keeping a constant switching performance over life. The hermetically sealed MEMS and the laser welded collimators guarantee broad temperature range and superior long term stability. The part is designed to conform to Telcordia 1221 reliability standards. No epoxy is present in the optical path.

 

DESCRIPTION

Sercalo’s SCBU fiber optic switches are based on a strictly non-blocking bidirectional architecture. An additional status where the channels are disconnected is available. The switch is non latching: at power-off it breaks the optical connection and routing of ports is not defined. The component is bidirectional, i.e. the common port can be used as input or output of the light signal.

TECHNICAL SPECIFICATIONS for Single mode fiber

 UnitMinTypMax
Optical Specifications  
Wavelength range nm 1250   1670
Insertion loss (matrix)14x4 dB   0.8 2.0
8x8, 16x16 dB   1.6 3.0
Insertion loss (tree)11x16 dB   0.8 1.2
1x36 dB   1.2 2.0
1x72 dB   1.6 3.0
1x540 dB   2.2 3.5
1x1116 dB   2.4 4.0
Cross-talk dB 50 60  
Polarisation dependent loss dB   0.1 0.18
Return loss  dB 50  55  
Wavelength dependent loss (one band)  dB     0.2
Wavelength dependent loss (1250–1670 nm)  dB   0.5  1.0
Temperature dependent loss  dB     0.2
Maximum optical power level2 mW     500
Switching time ms   5 10
Cycle rate Hz   1 20
Repeatability3 dB     0.01
Durability cycles No wear out
Electrical Specifications  
Supply voltage V 4.75 5 5.25
Power consumption, normal mode mW     150
Power consumption, standby mW   40  
UART speed baud 9600   115200
SMBus/I2C bus speed kbps     400
Logic level low V   0 0.6
Logic level high V 2.4 5  
Reset inactive voltage4 V 2.4 5  
Reset active voltage V   0 0.9
Reset pulse duration ms 15    
Package  
Operating temperature ˚C -10   70
Storage temperature ˚C -40   85
Operation humidity (non condensing) % r.h. 0   95
Pigtail length cm 50   100
Dimensionssmall size mm 72 x 140 x 16
medium size mm 100 x 180 x 16
large size mm 185 x 180 x 16
RoHS Compliance 2015/863/EU (no exceptions)

1 Values at 1550nm or 1310nm at 25 ˚C, without connectors.
2 It is recommended to turn off the laser during switch transients when switching optical power above 100 mW.
3 For constant temperature and polarization.
4 Through onboard pull-up resistor.

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 SCBU : Customizable fiber optic switch and Non-blocking Matrix up to 16x16

  SCBU 1xN 2xN NxM

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  Rue des Draizes 5,
     CH 2000 Neuchâtel
     Switzerland
  + 41 32 732 15 20
  + 41 32 732 15 29
  info@sercalo.com

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