| Title: | DEChub/HUBwatch/PROBEwatch CONFERENCE | 
| Notice: | Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7 | 
| Moderator: | NETCAD::COLELLA DT | 
| 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 | 
    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
| T.R | Title | User | Personal Name | Date | Lines | 
|---|---|---|---|---|---|
| 3165.1 | modular physical medium dependent | NETCAD::GALLAGHER | Wed Jan 17 1996 14:35 | 20 | |
| 
"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
 | |||||
| 3165.2 | Thank You | HGOVC::RAPHAELHUNG | raphael | Fri Jan 19 1996 01:14 | 5 | 
|     Shawn,
    
    Thanks !
    
    Raphael
 | |||||