Avaya 6424D+M - Page 75

5-2
INSTALLATION EXAMPLE: SYSTEM 85 AND DEFINITY GENERIC 2 WITH TRADITlONAL MODULES
Determining Block Quantities
The following computations show how the field requirements are converted into terminal blocks.
Subtotal Total
Subtotal Total
Total
Cable Cable
Field
Field
MDF
Pairs
Pairs
Blocks
Blocks
Blocks
1. Green Field
A. Number of Cable pairs terminated =
0
B. Number of cross-connect blocks required = 0 0
2. Yellow Field
A. Auxiliary cabinet terminations:
2 cabinets x
12 cables
25 pairs
x
=
600
cabinet cable
B. CC cabinet termination:
1 cabinet x
12 cables
x
25 pairs
=
300
cabinet cable
C. Total pairs
900
D. Blocks needed:
900 pairs +
300 pairs
=
3
block
E. Spare blocks
1
F. Number of required blocks
2
4
3. Purple Field
A. Sizing largest module:
9 step carriers
8 cables
x
25 pairs
i
x
module
carrier cable
1800 pairs
=
module
ii
2 MFAT/DS1 carriers
4 cables 25 pairs
module
x
carricr
x
cable
200 pairs
=
module
200 pairs
1800 pairs
iii
+
x module =
module
module
2000
2000 pairs
+
300 pairs
iiii
module
block
=
7 blocks
module