Commercial grade advanced (for the day) Avalanche photodiode with preamp module, hermatically sealed and Gold plated mini DIL body and leads intended for SMD mounting ... Offered for custom projects or educational use.
HISTORY:
Removed from secure fibre optic communications equipment used by the Federal Government, the equipment having been updated due to technological redundancy - prior to dismantling, the equipment was fully operational.
Technological redundancy? You bet! Technology advances in leaps and bounds and while this receiver module was used with 10Gbps optical systems, the current standard for high speed is 800Gbps and 1T is just around the corner - this module is like the old man with a walking frame but it is offered at far less than modern components!
Optical communications has the advantages of extremely wide bandwidth (bandwidth of this component is 8.5GHz) and immunity from external influences such as EMI, RF and widely used in highly secure installations where it is not desirable to have "unauthorised" access to communications links.
Typical commercial uses are telecommunications, data networks and digital signal transmission
FUJITSU (FOC Japan) - Optical Communications Receiver Module
Mini DIL package, this was originally mounted directly onto the PCB comms card.
Part number FRM5W232BS
Structure: InGaAsP/InP APD with preamplier module
Wavelength (centre): 1310nm
Designed originally for use in long haul 2.5Gb/s fibre communication systems
Module body: 11.4mm x 7.5mm x 5mm height
8 pins, body and pins are all Gold plated
Fiber tail is 100cm length
Terminated with a SC P BLUE connector
Pin designations ... please refer to the photographs, the full datasheet remains available online from Fujitsu (FOC)
COSMETIC CONDITION:
EXTREMELY carefully removed from equipment (ESD precautions and also stored in ESD bags)
Module pins have always been 'buried' in ESD material and will be supplied the same way.
Fiber cable has been handled with care, no sharp bends and certainly no "kinks"
Urggg! Although great care was taken during removal, I notice that one leg did not cleanly lift from the PCB when desoldered! The pin affected is Pin 4 (Ground) which is welded to the case anyway. Just the "leg" is missing but the solder tab on the side of the case remains. All other pins are fine.
Pins are all clean (minus Pin 4 - Ground) and ready for PCB mounting.
TESTING:
Removed (eventually - we had to wait for special clearance before making the "cutover" to the new equipment as maintaining of communication system integrity was critical for the client) This module and the rack modules they were installed in were absolutely fully functioning prior to removal.
I have NOT re-tested this module since removal from the card PCB though.
See the photograph showing the receiver module packed in a hard plastic case - this is how they will be received, not loose!
