Uninterruptible Power Supply; G650 Media Gateway Power Switch - Avaya G650 Installing

Uninterruptible power supply

An uninterruptible power supply (UPS) can be used for power protection and holdover time on loss of
AC power which increases the G650 Media Gateway availability. Select an UPS that meets the power
capacity and holdover time that is required for your site. Go to
http://www.avayaups.com/avaya/default.asp
surge protection for the G650 Media Gateway.
To install an UPS:
1
Connect the UPS to an electrical outlet capable of handling the power requirements of the G650
Media Gateway:
a
b
c
d
See also
2
Be sure that the G650 Media Gateway is connected to a "nonswitched" or "always on" electrical
outlet on the UPS.
3
Connect and administer the Avaya UPS. (Customers are responsible for connecting and
administering a non-Avaya UPS.)
The holdover time for each power outage is part of the configuration of the UPS to support the
G650 Media Gateway string of carriers. The UPS will issue a major alarm for the following
conditions:
a
b
c

G650 Media Gateway power switch

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Installing the Avaya G650 Media Gateway
June 2004
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.
100 VAC, 7.2 amps
120 VAC, 6.4 amps
200 VAC, 3.3 amps
220 to 240 VAC, 2.8 amps
G650 Media Gateway worst case current levels
Loss of AC - then the advertised holdover time is available.
UPS on Bypass - indicates the UPS has failed and must be serviced.
Low battery warning is issued at approximately 5 minutes before shutdown.
NOTE:
If an Avaya UPS is wired as recommended, the UPS will issue a shutdown warning 5
minutes prior to battery end of life. An UPS can handle any subsequent power outage
based on its total battery capacity.
DANGER:
The latch on the power supply does not remove power from the G650 Media
Gateway (see Figure 13, Power supply for the G650 Media Gateway,
remove the AC power from the 655A, pull the AC power cord from the back of the
G650 Media Gateway. If there are redundant power supplies, you need to pull both
AC power cords from the back of the G650 Media Gateway. To remove DC power,
first locate and switch the external DC circuit breaker to the "off" position and then
disconnect the DC power feed at the back of the G650 Media Gateway.
for sizing and holdover information. The UPS also provides
on page 45.
on page 50). To
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