Transcript Presentation

Plan Projects – Current
status
S.Sureshkumar, Engineer E
Fiber Optics and RFI Group
Our Team
 S.Sureshkumar
 Pravin
Raybole
 Arun Kumar
 M. Gopinathan
 Satish Lokande
 Digambar
 Amit Sawanth
Projects under Plan
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Broadband analog fiber optic link – GMRT Upgrade.
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Ethernet link to antennas – 1 Gbps.
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Supporting existing fiber optic link with smooth upgrade.
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8 x 1 GBE Long haul fiber optic link

Fiber Optic LAN for GMRT – Fiber to your work place.

RF common box with fiber connectivity – 15 meter dish.
Proposed new scheme
IF / LO / Ret. Tel
IF / LO / Ret. Tel
RF - CH1
RF – CH2
RF - CH1
RF – CH2
Spare
Spare
CWDM
De- MUX
LO / Forward Tel
1310 nm
1310 nm
1550 nm
1310 / 1550 Bidirectional Mux
LO / Forward Tel
Antenna Base
Fiber Link
1550 nm
CWDM
MUX
Central
Electronics
Building
Need for New scheme
 Single
fiber supports
Broadband fiber optic link,
Existing GMRT Return Link,
Existing GMRT Forward Link
 Provides
second fiber for Bi-directional
Ethernet link to GMRT Antennas.
CWDM System – Current status
 Design
Completed
 Installed Ch 1 – C04 and C11 antenna
DWDM System – Current status
 Design
Completed
 Installed Ch 2 – C04 and C11 antenna
 Installed in Ch1 and Ch2 – W04 and E06
Conversion Gain – CWDM Vs DWDM system
Noise Figure – CWDM Vs DWDM system
Operating level – DWDM system
Operating Level – CWDM system
Ethernet link to antenna
 100
Mbps link installed
– C00, C12, C05
 10/100/1000Mbps
upgrade
– 10 pairs arrived
 Bi-directional
single fiber link
- 1310nm / 1550 nm,
- 40 km distance
15 mt Dish
SWAP SWITCH
UNIT 1


UNIT 2

Gain = 17 dB
Variable Attenuator
UNIT 3
Design completed

RF Switch
RF

Termination

Swap Switch
Dc – 6 GHz amplifier
Dc – 2 GHz dir_coupler
Rf detector
Fiber optic transmitter
Gain = 17 dB
UNIT 5
Directional Coupler
UNIT 4
DC out – RF Monitoring

Design in progress
RF Detector
FIBER OPTIC TRANSMITTER

Control &
Monitor


UNIT 6

Single Mode Fiber to Central
Processing Location for single
Polarisation
Variable attenuator
Programming of C & M
Common box drawing
Water proof connector
Dc Power supply

Fiber Optics


Frontend

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+/- 15 V 3 Amps
+/- 20 V 10 Amps
15 mt dish ant.

+/- 20 V 10 Amps
CWDM based 8 x 1 GBE Link – GMRT and NCRA
Current Status: Completed
Upgrade Proposed
: Remote monitoring for Rajgurunagar
: Optical Amplifier between NCRA - Rajgurunagar
Optical Amplifier
Cost : 4 Nos. x 3200 USD
Fiber LAN – GMRT
Fiber Network Rack
Fiber distribution
Fiber distribution at user end
Expenses 2009 - 2010


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TEC controller 10 Nos
Noise Source 10 Nos
Media converters
EMI filter
PCB Roger Make
Finolex wires
10 Antenna Pigtail, Adaptor,
And Attenuator
 Milli ohms resistor 0.068
 RF Connectors

Total Expenditure
60,890
3,64,000
1,57,200
25,285
80,000
7,912
12,50,000
7,280
2,94,221
22,46,788
Proposed expenses 2010 - 2011

30 Ant CWDM Broadband link Components:




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80.75 Lakhs
Lasers( 950 USD x 120 Nos )
MUX and De-MUX (Rs. 62500 x 30 pairs)
TEC controllers ( 100 USD X 100 Nos )
Pigtails, adaptors and attenuators ( Rs. 35250 X 20 )
Optical Amplifier ( Pune – Narayangaon Link ) 4 Nos,
OTDR
Splicing Machine
Network Analyzer
Optical Spectrum Analyazer / Wavelength meter
Optical Laser source 1550 nm


7.0 Lakhs
4.5 Lakhs
5.5 Lakhs
10 Lakhs
12 Lakhs
2.0 Lakhs
Optical Power meter CWDM wavelength callibrated
Hand-held RF Spectrum Analyzer
With GPS and RFI locator.
 PC based RF spectrum analyzer
 Engineering Handset – Mobile
 RF Power Amplifier
2.0 Lakhs
8.0 Lakhs


Manpower for RFI Survey
Lap-top Computer – Ethernet link work
1.5 Lakhs
0.5 Lakhs

Total Budget for OFC and RFI
5.0 Lakhs
0.1 Lakhs
1.5 Lakhs
143.85 Lakhs