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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Upgrading to ATM-PNC
4-2Preparation
4
Preparation
Table 4-1 lists the installation items that must be completed and the equipment or
materials available before starting the upgrade procedure. We assume that in
DEFINITY ECS Release 6.3r or later with ATM-PNC that the ATM switch and
interface circuit packs are installed and administered.
Table 4-2
lists and describes the equipment and materials required for an ATM
upgrade.
Table 4-1. Installation checklist for DEFINITY ECS with ATM installed
√ Component Description
Cabinet Installed and fiber-prepped (fiber pass-through)
Timing (if
needed)
T1 or E1 synchronization splitter installed and stable timing source
present
ATM switches ■ ATM switches installed and fiber connected
ATM interfaces ■ All ATM interface circuit packs (TN2305/TN2306) installed and
able to receive and pass on synchronization
Required circuit
packs
■ All circuit packs required for DEFINITY ECS Release 8 are
installed and administered.
Critical reliability/network duplication only
Duplication
■ 2 independent switches or 1 switch with duplicated switch
fabrics and controls.
■ Independent fiber optic connections between the OC-3/STM-1
ATM interfaces and each duplicated switch fabric
Power supply No one power failure (other than the commercial AC source) able to
cause
■ both pairs of switch fabric and controls to simultaneously fail—
no one power failure (excluding AC source)
■ all interface circuits to fail simultaneously
Back up power
■ Back up option (independent of commercial AC source) installed
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