Mtbf Values - Avaya 4900 Series Installing

Table 5: PoE+ specifications
Model Number of
Power Supplies
ERS 4950GTS- 1
PWR+
2
1
2
ERS 4926GTS- 1
PWR+
2
1
2

MTBF values

The following table lists the MTBF values for the switches in ERS 4900 Series in combination with
one or two PSUs.
Model
4926GTS
4926GTS-PWR+
4950GTS
4950GTS-PWR+
February 2016
Power supply
Rated
1025 W
1025 W
1025 W
1025 W
1025 W
1025 W
1025 W
1025 W
Number of PSUs
1
2
1
2
1
2
1
2
Installing Avaya Ethernet Routing Switch 4900 Series
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Power over Ethernet (PoE+)
Line voltage Max
Power
per Port
(Watts)
200–240 VAC 30 W
200–240 VAC 30 W
100–110 VAC 30 W
100–110 VAC 30 W
200–240 VAC 30 W
200–240 VAC 30 W
100–110 VAC 30 W
100–110 VAC 30 W
Power Supply rating
250W
250W
1025W
1025W
250W
250W
1025W
1025W
Technical specifications
power output
Max power
output
Sum of all Ports
(Watts)
720 W 24 ports
at 30 W
1440 W 48 ports
at 30 W
720 W 24 ports
at 30 W
1440 W 48 ports
at 30 W
720 W 24 ports
at 30 W
720 W 24 ports
at 30 W
720 W 24 ports
at 30 W
720 W 24 ports
at 30 W
MTBF (hours)
212,509
191,705
211,044
197,295
199,834
181,329
195,578
183,714
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