CRYSTAL 40ZX USER GUIDE
6
3. NUMBERING SCHEME
Extension numbering is three digit starting from 201, 202....
Junction numbering is 61, 62.... 69, 60. Further 40 ZX is100%
flexible in terms of Jn line / extn. line combinations -- i.e.
simply by using appropriate cards, one can configure 1030
system as 2+38 or 4+36 or 6+34 and so on.
To enable above flexibility there are two types of line cards
2+6 type (i.e. 2 Jn and 6 extn.) and 0+8 type (i.e. ..8extn.
only). Any type of card can be plugged into any slot. (Do
not use 0+8 card in the Ist slot. This Ist slot is reserved for
2 + 6 card only.) However, if 2+6/0+8 cards are used, then
first all 2+6 cards will be inserted followed by all 0+8 cards.
The numbering scheme for various options shall be as
follows :
1st slot
2+6 line card Jn 61, 62
EXTN 201, 202, ....... 206
2nd slot
2+6 line card Jn 63, 64
EXTN 207, 208, ....... 212
0+8 line card EXTN 207, 208, ....... 212, 233, 234
3rd slot
2+6 line card Jn 65, 66
EXTN 213, 214, ....... 218
0+8 line card EXTN 213, 214, ....... 218, 235, 236
4th slot
2+6 line card Jn 67, 68
EXTN 219, 220, ....... 224
0+8 line card EXTN 219, 220, ....... 224, 237, 238
5th slot
2+6 line card Jn 69, 60
EXTN 225, 226, ....... 230
0+8 line card EXTN 225, 226, ....... 230, 239, 240
