NEC Univerge sv8500 Manual page 449

6. MC & MG with PFT
6.1 General
6.1.1 What is MC & MG with PFT?
MC & MG with PFT has two functions, Media Converter and Media Gateway. Media Converter (MC) is a gate-
way device providing media conversion between Internet Protocol (LAN-side) and conventional Voice Data
(the MC-connected conventional terminal-side). Media Gateway (MG) is an interface between IP network with
PSTN. MC & MG with PFT can be placed in remote office
MC and MG usually work independently. In the case of some failure of MC & MG with PFT, Power Failure
Transfer (PFT) connects C.O. lines and Analog terminals directly.
Outerview of MC & MG (COT) with PFT
ON
PWR
OPERATION LINK
LINE
Tx/Rx
MC 0 1 2 3
MG 0 1
FRONT VIEW
VOL.2-196
TEL 0 TEL 1 TEL 2 TEL 3
MC & MG with PFT