AT&T 3.0 manual Optional Equipment

Unit Load Calculation Worksheet

	Qty x	Unit Load		= Total
Equipment		Hybrid/PBX or
		Modified	Square
Optional Equipment
Direct Station Selector‡		0.7	0.9
General Purpose		0.8	1.0
Adapter		0.8	1.0
Hands-Free Unit		0.8	1.0
Headset Adapter
		Total Actual Unit Load

†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 per MLX-28D or MLX-20L console) can be powered from each control unit carrier. For example, a 3-carrier system can have 6 system operator positions, each with one DSS powered from the control unit,

■If the total actual unit load is less than or al to 54, auxiliary power is not required.

■If the total actual unit load is greater than 54, continue to Step 7.

Installation B–5