NEC Univerge sv8500 Manual page 650

8. MCMG Card [SCA-7COTA]
8.1 General
8.1.1 What is MCMG?
MCMG has two functions, Media Converter and Media Gateway. Media Converter (MC) is an interface pro-
viding 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 and Analog PSTN line.
MC side <Analog Terminal Interface>
MC has one analog port. Analog terminal and fax can be connected to the analog port. Service conditions
are the same as Analog 1-Port MC.
MG side <Analog PSTN Interface>
MG has seven analog ports and connects IP Network and PSTN. Any IP terminals can originate and receive
call to/from analog PSTN line.
MC and MG usually work independently. In the case of some failure of MCMG, Power Failure Transfer (PFT)
connects C.O. lines and analog terminals directly and provides emergency line.
There are following two shapes for MCMG such as Card Type and Box Type.
MCMG Card is mounted on 1U-MPC (Multi Purpose Chassis) module. One unit of 1U-MPC module can
Note:
accommodate a maximum of two cards. MCMG Card is mounted in the left slot in this figure.
Outerview of MCMG
MC MG1 MG3 MG5
MG0 MG2 MG4 MG6
ON
MC MG1 MG3 MG5 PFTRD
100M LINK CONSOLE
LINE
PWR ALM
MC MG
RESET
MG0 MG2 MG4 MG6
Ether
OPERATION
MUSIC
MCMG Card [SCA-7COTA]
VOL.2-397
MG7MC1
Note1
MCMG Card [SCA-7COTA]