Panasonic KX-TDA600

Power Supply Unit Selection for Each Shelf
The PBX needs a power supply unit (PSU) suitable for its configuration. For each shelf, calculate the load
figure from the type and number of items of equipment to be connected, and then determine the type of PSU
that will be required.
Note
Regardless of the total load figure, if a shelf contains an ECSLC24 card, the PSU-L must be installed.
Load Figure Calculation
Equipment Type Load Figure
PT KX-T7600 series DPT/KX-T7600 series DSS
console
1
KX-T7560/KX-T7565 DPT 1
Other DPT/Other DSS console 4
APT 4
IP-PT 0
Extension Card
*1
DHLC8 8
SLC8 8
ESLC16/CSLC16/EMSLC16 16
ECSLC24 24
Basic CS (1 unit) 4
High-density CS (1 unit) 8
ISDN Extension 2
VPS (1 port) 1
*1
Only the extension cards that can support SLTs count for the load figures.
PSU Capacity
Each PSU supports a different load figure.
PSU Type Maximum Load Figure
PSU-M 128
PSU-L 512
If the total load figure is greater than 128, you must install the PSU-L. If the total load figure is less than 128,
but you expect
expansion in the future, it may be better to install the PSU-L instead of the PSU-M. There is no
harm in installing a PSU that is larger than is required for the current configuration.
40 Installation Manual
1.4.3 System Capacity