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82
Installing the Avaya S8700 Media Server with an Avaya G650 Media Gateway
December 2003
Figure 12: Typical DC power for a G650
Uninterruptible power supply
You can use an uninterruptible power supply (UPS) for power holdover. Select an UPS that meets the
holdover power capacity that you need. The UPS must provide surge protection for the G650 Media
Gateway.
CAUTION:
The major alarm contacts are designed to be connected ONLY to an UPS that can indicate
that it is on backup power. For most non-Avaya UPSs, you should not use the major
external device leads.
Figure notes
1
Approved Ground
2
1 AWG Ground Wire
3
CBC Ground Terminal Bar at the MDF
4
Ground Discharge Bar
5
DC Power Cabinet
6
System Single-point Ground Discharge Bar
7
Ground Wire for Battery Cabinet
8
Frame Ground
9
Ground Connection Terminal
10
DC Battery Cabinet
11
Main AC Supply (AC Main)
12
Single-point Ground Block
13
Connector
14
To Next DC-powered Media Gateway
30A
30A
30A
30A
-48
VDC
-48 V
-48 V
-48 V
-48 V RTN
-48 V RTN
-48 V RTN
G650
G650
G650
10 AWG
RED
10 AWG
6 AWG
10 AWG
10 AWG
10 AWG
10 AWG
BLACK
RTN
cydfdc2i KLC 091603
BLACK
10 AWG
RED
BLACK
10 AWG
RED
10 AWG
RED
10 AWG
BLACK
Batter
y
circuit
breaker
+
-
LVD
Rectifiers
DC power
from rectifiers
+
-
Green/Yellow
Green/Yellow
Green/Yellow
1
2
3
4
5
6
7
8
10
12
13
9
11
14