Nortel Networks Passport 8306 - Handbuch (Seite 61)

Ethernet Routing Switch 8005DC power supply specifications 61
Table 12
Ethernet Routing Switch 8302 AC power specifications (cont’d.)
Heat dissipation (thermal/output): 1126 BTU/hr 1195 BTU/hr
Hold-up time: 20 ms 20 ms
DC Output Power Ratings
Max. output power (combined): 850 W (760 W + 90 W fans) 1400 W (1310 W + 90 W
fans)
Non-PoE: 3.3 VDC @ 150 A 3.3 VDC @ 150 A
12 VDC @ 65 A 12 VDC @ 65 A
PoE: 50 VDC @ 18 A 50 VDC @ 18 A
Fans: 12 VDC @ 7.5 A 12VDC @ 7.5 A
Note the following information:
• The maximum steady-state output power is limited to a total of 850 W
for any combination of output voltages/currents at low-line 100-120
VAC nominal input voltage conditions.
• The maximum steady-state output power is limited to a total of 625 W
for any combination of output voltages/currents, excluding the 50 VDC
source at low-line 100-120VAC nominal input voltage conditions. This
limitation is required to ensure that there is sufficient PoE power or 225
W total at this input voltage condition.
• The maximum steady-state output power is limited to a total of 950 W
for any combination of output voltages/currents, excluding the 50 VDC
source at high-line 200-240VAC nominal input voltage conditions. This
limitation is required to ensure maximum PoE power or 450 W total for
the 50 VDC source at this input voltage condition.
•
To obtain the full output power rating of 1400 W, you must connect the
power supply to a nominal (200-240VAC) input voltage source.
Ethernet Routing Switch 8005DC power supply specifications
This section provides power ratings for the 8005DC power supply.
The following table lists the DC input power specifications.
Parameter Specifications
Input voltage –48Vdc/–60Vdc
Input current (nominal) 42 A /34 A
Input VA (maximum) 1.95 kVA
Input power consumption 1950 W
Heat dissipation (thermal/output) 1666 Btu/hr
Nortel Ethernet Routing Switch 8300
Installation — Chassis
NN46200-309 01.01 Standard
16 June 2008
Copyright © 2008 Nortel Networks
.