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Conference netcad::hub_mgnt

Title:DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:NETCAD::COLELLADT
Created:Wed Nov 13 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4455
Total number of notes:16761

3165.0. "MOD-PMD on Concentrator" by HGOVC::RAPHAELHUNG (raphael) Tue Jan 16 1996 21:06

    Hello,
    
    When we going to configure the DEChub900 with Concentrators, there is a
    term MOD-PMD, or MODOMD for the wiring, can any one tell me what it is, 
    and where to find more information on this.
    
    
    Raphael
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3165.1modular physical medium dependentNETCAD::GALLAGHERWed Jan 17 1996 14:3520
"ModPMD" stands for "modular physical medium dependent".  "Physical
Medium Dependent" is the lower sub-layer of the OSI physical layer.

According to the DECconcentrator Reference Manual:

    ModPMDs are interface modules that allow flexibility so concentrators
    can adapt to various network cabling schemes.  ModPMDs are easily
    installed by the user.  ModPMDs are available in three basic types:

	- single-mode fiber (SMF),
	- multimode fiber (MMF), and
	- Unshielded twisted pair (UTP).

Information about ModPMDs should be in the catalog.  You can also find
more information in the DECconcentrator documentation.  Try:
	
	TNPUBS::PUBLIC$651:[PUBLIC.ONEHUB]*con*.ps

						-Shawn
3165.2Thank YouHGOVC::RAPHAELHUNGraphaelFri Jan 19 1996 01:145
    Shawn,
    
    Thanks !
    
    Raphael