I like to swap 655A slot 0 with a different g650 cabinet
then swap 655A slot 15 with yet another cabinet
swap fan assembly would also be an option before replacing a cabinet.
moving bad hardware moves the alarm and errors to a different cabinet.
having redundant 655 in slot 0 and 15 are hot swappable and no down time.
fan assembly if swapped in under 60 seconds is also hot swappable.
Below is also from Mikeydidntdoit's Maintenance book:
g650 cabinet 1A. Tech should also check fans and filters to make sure that
blocking of airflow through the g650 is not an issue.
700258155-R AVAYA G650 MEDIA GATEWAY FAN ASSEMBLY REFURBISHED 4 screws
700394398-R AVAYA G650 MEDIA GATEWAY FAN ASSEMBLY REFURBISHED 3 clasps
700246671-R AVAYA G650 MEDIA GATEWAY POWER SUPPLY 655A REFURB
700406135-R AVAYA G650 MEDIA GATEWAY POWER SUPPLY 655A RHS REFURB
If this Fan Assembly does not resolve this issue, the g650 itself will need to
be shipped and replaced.
700259724-R AVAYA G650 MEDIA GATEWAY CHASSIS W/O POWER SUPPLY REFURB
CAB-PFL and CAB-TEMP alarms in 1A g650
1 (a) Power/Fan Lead Query Test (#1533) MAJ MIN OFF test environment location
a. Error Type 1: The AuxSig lead is active. Run test environment location and
follow the repair steps for Power/Fan Lead Query Test (#1533).
1 FAIL G650: In a G650 carrier, this indicates a failure in any of the following
MOs:
- SER-BUS (Serial Communication Bus)
- POW-SUP (Power Supply)
- CAB-TEMP (Cabinet Temperature)
- PS-RGEN (Power Supply Ring Generator)
Use the diagnostic procedures for those MOs to clear the problem.
1 FAIL
(cont'd)
G600 / CMC1
There is a fan, temperature, power, or voltage problem in one or more of
the cabinets. The power supply's LEDs may indicate the problem's
source.
1. If none of the fans are running, then:
a. Verify 8- to 14-Volt DC power is available to the fan units by
checking the wiring connector. If there is 8- to 14-Volt DC power
at the connector, there should be power to the fans. If the fans
still do not run, replace the fan assembly.
b. If not, then the power unit's fan output is defective or thermally
shut down. Let the power unit cool, and recycle AC input power.
If no fan output, replace the power unit. If the fans still do not
run, escalate the problem.
2. If only 1 of the fans is not running, replace the fan.
3. If every fan can be started, wait 5 minutes and rerun the test. If the
test fails again, proceed to Step 4 or Step 5 as applicable.
4. If the fans are not at high speed, measure the cabinet's
temperature at the air intake and the air exhaust at the top of the
cabinet.
a. If the 5- to 600-C criteria is met, there is a problem with the fans
that is preventing the fans from operating at high speed.
Replace the fans. If the fans run at high speed, wait 5 minutes
to give the cabinet time to cool down and, rerun the test. If the
problem persists, go to step 5.
b. If not, the Processor circuit pack is incorrectly reporting this
condition. Look for and resolve every error on these MOs first,
then rerun the test.
5. If the fans are running at high speed, check the following items. Any
one of these could be restricting or redirecting the cabinet's air flow:
a. Check the filter. If the filter is dirty or clogged, it should be
cleaned or replaced. The filter can either be washed with soap
and water or vacuumed.
b. Verify that nothing other than circuit packs are in the carrier
slots that could be restricting air flow.
c. Verify that no circuit-pack blanks or carrier faceplates are
missing. Install and/or replace them as necessary.
d. Be sure the cabinet's doors are properly closed. The doors
must be closed to enable the fans to properly cool the cabinet.
Wait 5 minutes to allow the fans to cool the cabinet. Rerun the
test. If the test still fails, proceed to Step 6.
6. At this point, there should be nothing impeding the air flow, and the
fans should be running at high speed. Check the temperatures for
the 5- to 600-C criteria.
a. If the 5- to 600-C criteria exists, a temperature problem exists,
and the fans (at high speed) should cool down the switch. Wait
5 minutes, then rerun the test. If the test still fails, the ambient
room temperature is probably too high, and the room should be
cooled.
b. If the 5- to 600-C criteria does not exist, the fans are defective.
Replace the fan assembly and rerun the test. Failures can
occur on the Processor circuit pack that are not detected but
that cause many, if not every, environment test to fail. If many
environment tests are failing, the suspected circuit pack,
depending on the system configuration, should be replaced and
the test rerun.
7. There is a problem with the environment of the power system. The
power unit for the cabinet may be defective.
a. Verify and, if necessary, replace the power unit.
b. Rerun the test. If the test still fails, escalate.
--------------------------------------------------------------------------------
G650 fan removal/replacement
! WARNING:
WARNING: You can remove the fan assembly while the system is running, but you must 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.
A great teacher, does not provide answers, but methods to teach others "How and where to find the answers"
bsh
40 years Bell, AT&T, Lucent, Avaya
Tier 3 for 30 years and counting
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