AT&T MERLIN LEGEND Release 3.1 System Planning Manual page 293

Unit Load Calculation
Module
Equipment
Network Access Lines*
DID
DS1
NI-1 BRI
GS/LS
Tie
Telephones
MLX-10
MLX-10D
MLX-10DP
MLX-28D
MLX-20L
BIS-10
BIS-22
BIS-22D
BIS-34
BIS-34D
MLC-5
MDC 9000
MDW 9000
10-Button Basic
10-Button HFAI
34-Button Basic
34-Button DLX
34-Button BIS
34-Button BIS/DIS
Single-Line Telephone
Optional Equipment
Direct Station Selector
General-Purpose Adapter
Hands-Free Unit
Headset Adapter
* Unit loads are computed for each trunk for trunk-type network access lines.
† The MFM has its own wall power unit located at the telephone and therefore is not added to
the unit load calculation.
‡ Up to two DSSs (one DSS for each MLX-28D or MLX-20L) can be powered from each
control unit carrier. For example, a three-carrier system can have six system operator
positions, each with one DSS powered from the control unit.
F–4
System Planning
Qty x
Hybrid/PBX
or Modified
†
‡
Unit Load
Key
1.0 1.0
0.0 0.0
0.0 0.0
0.0 0.0
1.4 1.4
0.9 1.2
0.9 1.2
0.9 1.2
1.2 1.7
1.1 1.6
0.9 1.1
1.0 1.3
1.0 1.3
1.1 1.5
1.1 1.5
0.0 0.0
0.0 0.0
0.0 0.0
0.9 1.1
1.0 1.2
0.9 1.1
1.2 1.7
1.2 1.4
1.2 1.4
0.6 0.7
0.7 0.9
0.8 1.0
0.8 1.0
0.8 1.0
Total Actual Unit
= Total