Panasonic KX-TDA15 Installation Manual page 27

Load Figure Calculation (BRI Extension Port)
If the Hybrid IP-PBX has a BRI extension port, you need to calculate the total load figure from the type and
number of equipment to be connected.
If the total load figure exceeds 32, it cannot be supported by the KX-TDA15. In this case, use the KX-TDA30
with Additional AC Adaptor. If the load figure exceeds 96, use the KX-TDA100 with M-Type Power Supply
Unit (PSU-M), or the KX-TDA200 with either PSU-M or L-Type Power Supply Unit (PSU-L).
PT
Pre-installed 4 Super Hybrid Ports
Extension Card
CS (1 unit)
VPS (1 port)
ISDN Telephone
*1 If the connected ISDN telephone has an external power source, its load figure is 0.
Calculation Example
Other DPT/Other DSS console (except KX-
T7600 series, KX-T7560/KX-T7565)
CS
ISDN Telephone
Total
Equipment Type
KX-T7600 series DPT/KX-T7600 series DSS
console
KX-T7560/KX-T7565 DPT
Other DPT/Other DSS console
APT
IP-PT
SLC8
Equipment Type
4 units
2 units
1 unit
1.4 Specifications
Load Figure
0
0
4
4
0
0
0
4
0
1 *1
Load Figure
16
8
1
25
Installation Manual 27