AT&T DEFINITY 7100 series Uživatelský manuál stáhnout pdf (Strana 93)

DUPLICATION OPTION

G3iV2, the Duplication Option provides:

●

A duplicated control carrier (multicarrier cabinet) or a

duplicated control cabinet (single-carrier cabinet) that

houses a second Switch Processing Element (SPE). The

SPE includes the following:

— Processor Circuit Pack TN773

— Network Control Circuit Pack TN777B

— Packet Control Circuit Pack TN778 (G3V2)

— Memory Circuit Pack(s) TN770

Power source to the fans from both the control carrier

and duplicated control carrier.

Duplicated Tone-Clock circuit packs TN768 that allow the

system clock to be generated from either tone-clock cir-

cuit pack. Note that if Stratum 3 Interface is required, the

TN780 replaces the TN768.

Duplicated lightguide cable between the Processor Port

●

Network (PPN) cabinet and the Expansion Port Network

(EPN) cabinets. Duplicated 9823-type Iightwave tran-

sceivers at both the PPN and EPN cabinets to terminate

the fiber-optic links.

For G3rV2, the Duplication Option provides the above options or a

duplicated processor-only system, as follows:

●

Two control carriers located in the PPN cabinet, which

contain duplicate SPEs and tone-clock circuit packs

●

One tone-clock circuit pack per EPN

●

Duplicate expansion interface circuit packs in the PPN

(for DEFINITY G3rV2 with CSS)

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AT&T DEFINITY 7100 series Uživatelský manuál Strana 93