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Conference 7.286::fddi

Title:	FDDI - The Next Generation

Moderator:	NETCAD::STEFANI

Created:	Thu Apr 27 1989
Last Modified:	Thu Jun 05 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	2259
Total number of notes:	8590

1108.0. "FDDI questions from customer" by CGOOA::BARNABE (Guy Barnabe (DIS) Regina/Canada) Wed Oct 06 1993 23:13

    Could someone please provde some answers to these fddi questions for my
    telco customer?
    
    -- cheers,
       Guy
    
    
    

                  I N T E R O F F I C E   M E M O R A N D U M

                                        Date:     06-Oct-1993 09:37 MDT
                                        From:     George Durell
                                                  GEORGE DURELL@5=MRXGATE@3=SASKTEL400@2=TELECOM.CANADA@1=CA@MRX_ENVOY@TROU01@CAX
                                        Dept:     MRXGATE
                                        Tel No:    

TO:  barnabe                              ( GUY BARNABE@RZO )


Subject: FDDI Questions                                              


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Guy:

	Could you get the following information 
for me please.

	For the Single mode optics on DEC FDDI 
equipment (Concentrator 500):

	What is the transmit ouput power level?
	What is the receiver sensitivity (min 
power level to operate)?
	What is the receiver overload (max power 
level)?

	Is the fiber that is on the card (receive 
side, from the connector to the photodiode) single 
or multi mode?  Apparently, most of our single 
mode transmission equipment uses multi mode on the 
receive side of the card because of lower losses 
in the interface to the photodiode.  This allows 
us to use a lower cost multimode attenuator. 


Thanks.

George Durell
SaskTel

T.R Title User Personal
Name Date Lines

1108.1 Answers to your questions LEVERS::KIRK tis a gift to be simple Thu Oct 07 1993 09:33 32

T.R	Title	User	Personal Name	Date	Lines
1108.1	Answers to your questions	LEVERS::KIRK	tis a gift to be simple	`Thu Oct 07 1993 09:33`	32
	For the Single mode optics on DEC FDDI equipment (Concentrator 500): What is the transmit ouput power level? -8.0 dBm minimum What is the receiver sensitivity (min power level to operate)? -30.0 dBm minimum What is the receiver overload (max power level)? -14.0 dBm Is the fiber that is on the card (receive side, from the connector to the photodiode) single or multi mode? The fiber on the receiver is a multimode fiber. Regards, Richard Kirk Optical PMD Project Leader High Performance Networks

	For the Single mode optics on DEC FDDI 
equipment (Concentrator 500):

	What is the transmit ouput power level?

     		-8.0 dBm   minimum

	What is the receiver sensitivity (min 
power level to operate)?

     		-30.0 dBm  minimum

	What is the receiver overload (max power 
level)?

     		-14.0 dBm


	Is the fiber that is on the card (receive 
side, from the connector to the photodiode) single 
or multi mode?  

     		The fiber on the receiver is a multimode fiber.


Regards,

     Richard Kirk
     Optical PMD Project Leader
     High Performance Networks