X900-12Xt/S Fixed Ac Psu; Ipv6 Accelerator Card; How The Card Works - Allied Telesis x900-48FE Hardware Reference Manual

38
x900-12XT/S
fixed AC PSU

How the card works

The following LEDs report operations and faults on the PWR05 PSU
The following table describes LEDs on the PWR05 AC power supply unit.
LED State Description
~
Green AC input voltage is within 90-264 VAC, 47-63Hz.
IN
Off AC input voltage is outside the acceptable range.
Green DC output voltage is within 12V +/- 10%.
OUT
Off DC output voltage is outside the acceptable range, or the Standby
switch is Off. If a fault occurs then the FAULT LED will display and
the OUT LED will be Off.
Red A fault has occurred. There is either a fan failure, or the
temperature has exceeded its limit of 70º C (158º F).
Off No fault conditions detected.
FAULT
The following table describes LEDs on the PWR05 DC power supply units.
LED State Description
Green DC input voltage is within 40 VDC to 60 VDC.
IN
Off DC input voltage is outside the acceptable range.
Green DC output voltage is within 12V +/- 10%.
OUT
Off DC output voltage is outside the acceptable range, or the Standby
switch is Off. If a fault occurs then the FAULT LED will display and
the OUT LED will be Off.
Red A fault has occurred. There is either a fan failure, or the
temperature has exceeded its limit of 70º C (158º F).
Off No fault conditions detected.
FAULT
Key features are:
Universal 100–240 V AC 50/60 Hz input
■
Maximum continuous current draw: 2 A at 90 V, 0.8 A at 230 V at full-rated
■
load
Maximum inrush surge current (cold start at 25º C/77º F): 33 A peak at
■
115 VAC
A single LED on the front panel of the switch reports operations and faults on
the PSU. See "System LEDs" on page 17

IPv6 Accelerator Card

An optional AT-ACC01 network processor accelerator card accelerates IPv6
unicast and multicast routing in hardware on AT-8948 switches. For full
functionality, 512 MBytes SDRAM must be installed in the switch.
When the switch receives an IPv6 packet to route, the packet is sent to the
network processor accelerator card. The card processes the packet and sends it
out the correct port with appropriate alterations to the packet. Other IPv6
functions are passed to software, such as routing protocol control packets,
encryption, authentication, and hop-by-hop headers.
x900 Series Switch and SwitchBlade
for more information.
®
x908
C613-03092-00 REV J