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40 System components
Group
LED Name
Clock Synch
CLOCK SYNC
(1 LED)
CLOCK SYNC
CLOCK SYNC
Ethernet
LNK/ACT
(2 LEDs)
SPEED
Media Gateway Controller and DSP daughterboards
The MGC occupies slot 0 of a Media Gateway and supports legacy
backplane interfaces (DS30x, CEMUX). The MGC provides Gateway
Controller functions, and does not function as a Server. The system
requires a separate Server to handle call processing requests.
The MGC card has two expansion slots for DSP daughterboards. A
MGC card can provide a maximum of 256 DSP ports (2x128-port DSP
daughterboards).
For more information about the Media Gateway Controller and DSP
daughterboards, see Circuit Card Reference (NN43001-311).
Power supply
The PRI Gateway power supply characteristics are:
•
100 Watt AC to DC switching power supply
•
Universal input: 90 Vac - 265 Vac
•
Triple output voltages: +5V/12A, +12V/1A, -12V/1A
•
High efficiency = 83%
•
Regulation (line and load) 3% max
•
Output Ripple 1% rms max
•
Convection cooling
•
Working temperature: 0 C to +50 C
•
High power density
•
Fixed switching frequency = 132 kHz
•
Approvals: UL/ TUV/ CE
•
EMC approvals: FCC part 15, class A
Media Gateway 1000E PRI Gateway Installation and Commissioning
Color
Red
Green
Flashing
green
Green
Yellow
Nortel Communication Server 1000
NN43041-311 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
Functionality
Lit when clock controller disabled
Lit when locked to a reference or in free-run
mode
Flashing when in tracking mode
Flashing when Ethernet Link is receiving data
Lit when speed is 100 Mbps
Off when speed is 10 Mbps
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