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IP Telephony and QSIG Over IP
Power over LAN
9-16 Strata CTX I&M 06/04
Addressing
Regarding addressing of IP packets exchanged between IPT and the main system unit, the
following restrictions are normally applied.
• NAT (Network Address Translation)/NAPT (Network Address and Port Translation) devices
NAT/NAPT devices must not be used for communication between the “IPT Anywhere”
terminal and the interface card. The original IP header and UDP header must not be revised.
• VPN Tunneling – By making the private IP address a capsule of the global IP address, the
private IP address can be used to tunnel through the global IP network. Using tunneling makes
communication between the “IPT Anywhere” telephone and the interface card transparent.
Tunneling use requires that the carrier or the provider that the user is in contract with provides
a tunneling device or that the user installs his/her own tunneling device separately.
• Address system – It’s important to devise a control system to prevent the private IP addresses
of the network for the “IPT Anywhere” telephone and the network to which the interface card
installed in this terminal belongs from overlapping.
Power over LAN
The recommended electric power device by LAN is called Power over LAN
TM
from PowerDsine,
Ltd. http://www.powerdsine.com. Compatible models are shown in Table 9-6
Table 9-6 Power over LAN Models
Port Models Model Name Input Output
24 port type
PD-PH-6024/ACDC/48
AC input Voltage: 88 – 264 VAC
AC Frequency: 47 – 63 Hz
DC input Current: 10A at 48 VDC
Output Voltage: -48VDC
User Port Power:
16.8W (Maximum)
Data Rates: 10/100
Mbps
PD-PH-6024/AC/48
AC input Voltage: 88 – 264 VAC
AC Frequency: 47 – 63 Hz
12 port type
PD-PH-6012/ACDC/48
AC input Voltage: 88 – 264 VAC
AC Frequency: 47 – 63 Hz
DC input Current: 10A at 48 VDC
PD-PH-6012/AC/48
AC input Voltage: 88 – 264 VAC
AC Frequency: 47 – 63 Hz
6 port type
PD-PH-6006/ACDC/48
AC input Voltage: 88 – 264 VAC
AC Frequency: 47 – 63 Hz
DC input Current: 10A at 48 VDC
PD-PH-6006/AC/48
AC input Voltage: 88 – 264 VAC
AC Frequency: 47 – 63 Hz