Lucent Technologies Comcode 108678723 Preparation, Critical reliability/network duplication only

DEFINITY ECS Release 8.2 ATM Installation,	Issue 1
Upgrades, and Administration 555-233-124	April 2000

4Upgrading to ATM-PNC

Preparation 4-2

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 4-1. Installation checklist for DEFINITY ECS with ATM installed

√	Component	Description
	Cabinet	Installed and fiber-prepped (fiber pass-through)
	Timing (if	T1 or E1 synchronization splitter installed and stable timing source
	needed)	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	■	All circuit packs required for DEFINITY ECS Release 8 are
	packs		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

Table 4-2 lists and describes the equipment and materials required for an ATM upgrade.