700394398-R AVAYA G650 MEDIA GATEWAY FAN ASSEMBLY REFURBISHED 3 clasps
Code:
G650 fan removal/replacement
! WARNING:
WARNING: You can remove the fan assembly while the system is running, but you mu
st replace the
new assembly within 60 seconds to avoid a thermal overload.
To replace a G650 fan:
1. Place the new fan assembly close to the G650.
2. Loosen the thumb screws on the fan assembly, and pull it straight out as
shown in
Figure 58: Removing the G650 fan assembly on page 292.
3. Disconnect the fan cable.
4. Connect the new cable and position the new fan assembly.
5. Tighten every thumb screw on the fan assembly.
Avaya Doc
tek-tips link
Some 655A power units made between February and June of 2006 were assembled with
reversed zener diodes. This can cause both power units and thus the G650 Gateway
to be reset when a defective power unit is HOT inserted into a G650 Gateway.
Having one or two defective units installed in a G650 Gateway will not cause any
problems during normal operation, even during a power disruption to one or both
of the units, unless a defective unit is physically reseated or a second
defective unit is added into an operational gateway. Only the act of physically
HOT inserting a defective power unit may cause a disruption. The G650 Gateway
will automatically restart after the disruption. Any G650 Gateways with only a
single 655A power unit will not have any problem unless a defective 655A is
installed as a second power unit, even if the single unit might be defective.
A known good unit can be added, without incident, to a G650 Gateway containing a
defective 655A.
The defect can not be visually inspected and only be identified by serial
numbers and special testing.
Resolution
Any 655A power units with a serial number from 06R40200XXXX to 06R40600XXXX,
where the 5th and 6th digits indicates the month manufactured, has the potential
to contain a reversed zener diode. Many units in this range have been screened
for this issue and verified good units are marked with a black dot following the
655A on the latch label.
Marked with a d o t when screened
Month
The shipping boxes that these screened units are in, have also been marked with
a white label, next to the serial number label that say DIODE TEST PASSED.
This label is placed on both 655A Power Unit boxes, as well as G650 Getaway
boxes that contain a screened power unit.
Replace suspect units as needed with screened units as shown above or with units
outside the serial number range. There is no need to replace 655A power units
that are installed in G650 Gateways that only contain a single power unit with
no plans to add a second power unit in the future.
655A power units manufactured after June 2006 with serial numbers of
06R40700XXXX or higher, have been tested by the manufacturer and do not have the
special marking or labels.
G650 Gateways manufactured after July 10th with serial numbers of 061628XXXXXX
and higher, or 06KC29XXXXXX and higher have verified good 655A power units, but
do not have the outside box label.
A great teacher, does not provide answers, but methods to teach others "How and where to find the answers"
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45 years Bell, AT&T, Lucent, Avaya
Tier 3 for 35 years and counting
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