Maximum Terminal Equipment
The following shows the number of each terminal equipment type supported by the PBX.
Terminal Equipment Type Maximum Number
Telephone 172
SLT 36
KX-DT300/KX-T7600 series DPT 40
KX-T7560/KX-T7565 DPT 36
Other DPT 10
APT
4
IP-PT
*1
128
*2
SIP Extension 128
DSS console 8
CS 21
*3
PT-interface CS (2-channel) 11
PT-interface CS (8-channel) 5
IP-CS (8-channel) 16
PS 64
Voice Processing System (VPS)
2
Doorphone 16
*4
Door Opener 16
External Sensor 16
External Relay 16
*1
KX-NT400, KX-NT300 series, and KX-NT265 (software version 2.00 or later only)
*2
For the KX-NT400, the maximum number of extensions that can be connected to the PBX is 64.
*3
One 8-channel PT
-interface CS or IP-CS counts as 2 CSs, up to a maximum of 32 CSs. Therefore, the maximum number of CSs is
21 (eleven 2-channel CSs + ten 8-channel CSs).
*4
For the KX-NCP500, when using the DPH2 card, the maximum number of doorphones is 12.
Installation Manual 31
1.3.3 System Capacity
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