AT&T SB35020 Specifications download pdf (Page 18)

Syn248 Installation and Configuration Guide Back to Contents

Installation 17

Gateway Installation

Figure 4. Gateway Grounding Terminal

Connect the telephone lines to the Gateway:

1. Remove the plastic covers from the Gateway LINE ports to be used, as shown in

Figure 5.

Figure 5. Gateway Telephone Line Connections

2. Plug up to four telephone lines from the telephone wall jacks into the Gateway.

Figure 6. DSL Connection

The Gateway grounding terminal shown in Figure 4 must be connected to

reliable earth ground using a separate ground wire before connecting the

telecommunication lines. The connection to earth ground must be verified by

qualified personnel.

Grounding Terminal

If your service provider uses Centrex lines, you must log in to the WebUI and

enter a line access code for each line to allow calibration to take place. Before

connecting the PSTN lines, connect the Gateway and one Deskset to the

network, then see “Logging in to the WebUI” on page 27 and “Line Calibration

Configuration” on page 67.

DC 5.1V

LINE 1

LINE 2 LINE 3 LINE 4 BYPASS

LAN

RESET

LINE 1

LINE 2

LINE 3

LINE 4

POWER

SELECT CANCEL

DOWN

BYPASS

LINE 1 through LINE 4

If you subscribe to Digital Subscriber Line (DSL) high-speed Internet service

through your telephone line, you must plug each telephone line with DSL

service into a DSL filter. Then plug the DSL filter into the telephone wall jack,

as shown in Figure 6.

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AT&T SB35020 Specifications Page 18