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- How To Find Your MDF Position From Your Equipment Number
-
- Researched and Written by iNFERNO
-
- How to find you MDF position from your Equiptment Number | iNFERNO 1996
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- A subscriber's line can be identified within a concentrator by the number
- of the equiptment to which it is connected. The equiptment number is within
- the range 0-2047 for each concentrator, if there is more than one
- concentrator within the exchange the the equiptment numbers expand in
- multiples of 2048.
-
- The shelves in the T.E containing the groups of Subscriber Line Units
- (SLUs) are labeled ALUS xx yy, where xx is the concentrator No. and yy is
- the shelf group No. within that concentrator. The MDF blocks are similarly
- marked.
-
- To determine the MDF block and circuit No. of a subscribers line, given the
- Equiptment & Concentrator No. :
-
- o Divide your EN by 2048, which gives a number and a remainder. The
- remainder is the Subs Line No. within that concentrator.
- o Dividing the remainder by 192 gives the Shelf Group No. and a new
- new remainder. This remainder gives the Circuit no. in that shelf
- group.
-
- e.g Concentrator 3, EN 10720: 10720/2048 = 5.480.. Line No. 480 in Conc3.
- 480/192 = 2.96, giving ALUS 3-2, Circuit 96.
-
- o For Mark 2 SLUs: Divide the circuit No. by 8 to give the SLU No.
- o For Mark 3 Plessey SLUs: As above, but if the remainder is odd then
- add one too the SLU No.
- o For Mark 3 GEC SLUs: Divide the circuit No. by 16 to give the SLU.
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