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This section describes how to replace a Telecom Signaling
Card in a TSU. The replacement TSC must be of the same type as the
other TSCs in the TSU. It is possible to replace a TSC in a TSU
on a running platform without disturbing the traffic. | | | |  | WARNING! Be sure to power off the TSU when instructed to do
so. | | | | |
| | | |  | CAUTION: The following procedure involves disconnecting the
TSU from the SS7 network. The HP OpenCall SS7 platform will therefore
lose network links. However, depending on the platform, it may be
possible for the traffic that uses these links to be redirected
via other links. Do this in consultation with the personnel responsible
for operating the platform. | | | | |
You should be logged onto the active host as ocadmin. If the platform has
more than one TSU, divert the traffic from the TSU that you are
going to work on. To do this, refer to “Diverting Traffic”. If you have a 1-host platform with only one TSU, stop HP OpenCall SS7 by
running the ss7Stop -all command. As a result, all traffic will be stopped. Take anti-static precautions
by wearing the grounding wrist strap. Power off the TSU. Remove all cables from the rear
panel of the TSU and disconnect the TSC cables at the network end. Slide the TSU out on its rails
until it blocks. Remove the cover of the TSU,
as described in “Removing
the TSU Cover”. Remove the card cage from the
TSU, as described in “Removing
the Card Cage”. Remove the old TSC and install
the new card in its place. Refer to “Removing
a Card from a TSU” and “Adding
a Card to a TSU” for help with this. Note that you may need to remove other TSCs in order
to gain access to the relevant slot. If this is the case, do not
forget to replace them! Re-insert the card cage into
the TSU, as described in “Replacing
the Card Cage”. Replace the cover of the TSU,
as described in “Replacing
the TSU Cover”. Slide the TSU on its rails back
into the cabinet. Reconnect all cables to the rear
panel of the TSU, but do NOT connect any TSC cables at the network
end yet. Power on the TSU and wait until
the TSU has booted (approximately 2 minutes). Use the command ss7TsuPing -v -u <TSU_ID> to check that you can reach the replacement TSC. Run the hardware replacement
command ss7HwReplace. If the tool returns an error, refer to the HP OpenCall SS7 Troubleshooting
Guide. When asked if you wish to load the updated configuration,
answer affirmatively. Do not accept changes now - quit the tool or move to another
window to continue - if you accept the changes, no rollback will
be available. Reconnect the TSC cables to the
signaling network. If you have diverted the traffic
from the TSU, you can now restore the traffic to the TSU. To do
this, refer to “Restoring
the Traffic”. If you have stopped HP OpenCall SS7, you can now restart
it. To do this, run the ss7Start command. Configure the hardware. To do
this, refer to “TSC Configuration:
Replacing a TSC in a TSU”.
RollbackYou should only perform this rollback when instructed to do
so in the procedure “TSC Configuration:
Replacing a TSC in a TSU”. You should be logged onto the active host as ocadmin. If the platform has
more than one TSU, divert the traffic from the TSU that you are
going to work on. To do this, refer to “Restoring
the Traffic”. If you have a 1-host platform with only one TSU, stop HP OpenCall SS7 by
running the ss7Stop -all command. As a result, all traffic will be stopped. Take anti-static precautions
by wearing the grounding wrist strap. Power off the TSU. Remove all cables from the rear
panel of the TSU and disconnect the TSC cables at the network end. Slide the TSU out on its rails
until it blocks. Remove the cover of the TSU,
as described in “Removing
the TSU Cover”. Remove the card cage from the
TSU, as described in “Removing
the Card Cage”. Remove the replacement TSC and
install the old card back in its place. Refer to “Removing
a Card from a TSU” and “Adding
a Card to a TSU” for help with this. Note that you may need to remove other TSCs in order
to gain access to the relevant slot. If this is the case, do not
forget to replace them! Re-insert the card cage into
the TSU, as described in “Replacing
the Card Cage”. Replace the cover of the TSU,
as described in “Replacing
the TSU Cover”. Slide the TSU on its rails back
into the cabinet. Reconnect the power and LAN cables
to the rear panel of the TSU but do NOT reconnect the TSC cables
to the TSCs yet. Power on the TSU and wait until
the TSU has booted (approximately 2 minutes). Use the command ss7TsuPing -v -u <TSU_ID> to check that you can reach the TSC that you have re-installed. Reconnect the TSC cables. Rollback the configuration changes
by carrying out either of the following: run
the command ss7HwRollback reject the updated configuration
in the ss7HwReplace window.
If you have diverted the traffic
from this TSU, you can now restore the traffic to the TSU. Refer
to “Restoring
the Traffic”. If you have stopped HP OpenCall SS7 on the hosts, you can
now restart it. To do this, run the ss7Start command.
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