Avaya MCC1 Installation And Upgrades page 240

System 75 XE to R8si (Blowback)
Task List: System 75 XE to R8si
Verify power failure stations (if present) [75 XE upgrade]
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Verify that the power failure stations are functioning.
Remove door and panels [75 XE upgrade]
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1
Remove the front door from each of the cabinets.
2
Disconnect all of the previously labeled connector cables.
3
Disconnect the Manager I from the TERM connector.
4
Remove the ground plate(s) from between all of the cabinets.
5
Remove the top and bottom rear covers from all of the cabinets.
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Remove circuit packs from the carrier [75 XE upgrade]
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!
Before inserting or removing a circuit pack from a cabinet, put on a wrist strap and attach
its plug or clip to the cabinet's frame.
1
Label each port circuit pack in control cabinet A with its slot number.
2
Remove all circuit packs and power units from the control cabinet. Store the circuit packs in the
static-proof packaging.
NOTE:
You can use a TN756 Tone Detector/Generator in an upgraded PPN system. You can not
use the TN756 in an EPN upgrade. If a TN756 is being replaced by a new tone-clock
during the upgrade, you will replace this circuit pack either with a TN2182 tone-
clock/tone detector or with both a new Release 8si tone-clock (TN768 or TN780) and a
new tone detector (TN748B).
3
If a TN741 (or an international TN419A) Tone-Clock resides in port cabinet B, remove this
circuit pack from the port cabinet. It will not be reused.
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240
WARNING:
SI Installation and Upgrades
June 2004