DOWNLOAD Panasonic KX-TGP500B09 / KX-TPA50B09 (serv.man2) Service Manual ↓ Size: 4.44 MB | Pages: 127 in PDF or view online for FREE

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There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper
(Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu), or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the
manufacturer's specific instructions for the melting points of their products and any precautions for using their product with other
materials. 
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3 mm, 0.6 mm and 1.0 mm.

When discarding P. C. Board, delete all personal information such as telephone directory and caller list or scrap P. C. Board.

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Support Codec

• G.711 

µ-law, G.711 A-law, G.726 (32k), G.729A, G.722

Interface

• 10 base-T/100 base-TX Ethernet RJ-45 connector 

× 1   

VoIP Status indication

• STATUS indicator on the Base Unit

Supported Protocols

• SIP, DNS, DHCP, HTTP (client/server), FTP, TFTP
• Telnet (Server), Syslog, RTP, RTCP, SNTP

Firmware Upgrading

• local upgrading by web browser

Security

• encrypted firmware and profile transmission (AES128, 192, 256 bit)

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IP phone is a telephone service provided by utilizing IP of the packet communication protocol used in the Internet.
Communicating with other party through the IP network by sending a voice, which is transformed into the digital data and
divided into Packet at IP phone.

The protocol which exchanges message for call control between both called and calling party and has the sequence control of
connection request, invitation, response and termination of sessions etc.

Transport protocol to provide network delivery services for the transmission of real time data such as audio and video. 
UDP (User Datagram Protocol) type that doesn’t carry packet loss measure and does not ensure timely delivery.

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The frequency range of 1.88 GHz-1.90 GHz is used. Transmitting and receiving carrier between base unit and handset is same
frequency. Refer to Frequency Table (P.96). 

This system is the cycles of 10 ms, and has 6 duplex paths, but maximum duplex communication path is 5 because of dummy
bearer use.
In 1 slot 417 

µs, the 10 ms of voice data is transmitted.

• 2 - Handsets Link

A link is established between base unit and handset.
The state where duplex communication is performed.
Handset doesn't make up duplex in no free RF channels because of interference. (*1)

Base unit sends Dummy-data to the all stand-by state handsets.
Handsets receive that data for synchronization and monitoring request from the base unit.
Base unit doesn't send Dummy bearer in no free RF channels because of interference. (*1)

(*1) It is a feature under FCC 15 regulation and for interference avoidance.
In the case of checking RF parts, it is better in least interference condition.