Panasonic KX-TDA600BX Service Manual page 13

Calculation Example
The total load figure is 136. As this is between 128 and 512, you must install the PSU-L.
Equipment Type
KX-T7600 series DPT
Other DPT
ESLC16
EMSLC16
VPS
Total
Load Figure
48 units 48
4 units 16
1 card 16
3 cards 48
8 ports 8
136
13
KX-TDA600BX