Mec Card Calculation - Panasonic KX-TDA50 Installation Manual

Terminal Equipment Type
Add-on Key Module
USB Module
*1 A maximum of 4 ports (8 channels) of a single VPS can be connected to the Hybrid IP-PBX.
Note
Devices connected to the Hybrid IP-PBX that exceed the system capacity will not function.

MEC Card Calculation

Calculate the MEC figure from the type and total number of items of equipment to be
connected. If the MEC figure exceeds 28, you need to install an MEC card.
MEC Card Calculation
PT
Pre-installed 4 Super Hybrid Ports
Extension Card
CS (1 unit)
VPS (1 port)
ISDN Telephone
*1
Only the extension cards that can support SLTs count for the MEC figures.
Calculation Example
Pre-installed Super Hybrid Ports
KX-T7600 series DPT
SLC4
VPS
Total
Without Additional AC
Without MEC Card
Equipment Type
KX-T7600 series DPT/DSS console
Other DPT/DSS console
APT
SLC4
*1
SLC8
HLC4
PLC4
PLC8
Equipment Type
With Additional AC Adaptor
Adaptor
Without MEC
Card
Total 24 Total 24
4 ports
16 units
2 cards
4 ports
1.4 Specifications
With MEC Card
48
24
MEC Figure
1
1
1
4
4
8
0
0
0
0
1
0
MEC Figure
4
16
8
4
32
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