Avaya 6211 Mode D'Emploi

— SN270B (digital) circuit packs
— 7400 series (digital) terminals

Digital terminals protected by PDPs do not require local power if the terminals have no adjuncts

attached. The terminals do require local power if adjuncts are attached.

Do not use the PDP with analog ports and terminals.

The following protectors supplied by AT&T or ITW are used for secondary protection:

●

AT&T Data Link Protector (DLP) — date-link transformers that provide secondary electrical
protection for:

— 1201A (comcode 103972733; PEC 24901) — 8-circuit protector that is mounted on 110A-type

cross-connect hardware

— 1203A (comcode 103972758: PEC 24900) — single-circuit protector contained in a wall-

mounted, 104A connector-block housing

DLPs are used to protect 7400-series digital terminals and SN270B circuit packs and must be
installed with a primary protector. DLPs are especially recommended for protection against lightning
and must be installed at both ends of the exposed cable serving an SN270B or a digital terminal.

Terminals protected by DLPs must be powered locally from either the satellite closet or at the
workstation. The use of local power extends the loop range of the terminal from 3400 ft to 5000 ft.

DLPs cannot be used for METs, hybrid 7200 terminals, or hybrid SN224B circuit packs.

Table 3-3, System 85 and DEFINITY Generic 2 with Traditional Modules Protection Matrix, contains
the overall protection matrix for port packs, terminals, and trunks in the System 85 and DEFINITY
Generic 2 with traditional modules.