40
System components
Group
LED Name
Color
Functionality
CLOCK SYNC
Red
Lit when clock controller disabled
CLOCK SYNC
Green
Lit when locked to a reference or in free-run
mode
Clock Synch
(1 LED)
CLOCK SYNC
Flashing
green
Flashing when in tracking mode
LNK/ACT
Green
Flashing when Ethernet Link is receiving data
Ethernet
(2 LEDs)
SPEED
Yellow
Lit when speed is 100 Mbps
Off when speed is 10 Mbps
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
Nortel Communication Server 1000
Media Gateway 1000E PRI Gateway Installation and Commissioning
NN43041-311 04.01
4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
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Содержание 1000E PRI
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