Installation guide

Installation 43
Synapse Installation Guide
 To connect the PSTN Gateway telephone lines:
1. Remove the plastic covers from the Gateway PSTN (telephone) jacks to be used, marked LINE 1 through LINE 4 and
BYPASS, as shown in Figure 22.
Figure 22. PSTN Gateway Telephone Line Connections
2. Plug up to four telephone lines from the telephone wall jacks into the Gateway. The line
LEDs blink for up to 15 seconds during initialization.
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
UP
+-
LINE 1 through LINE 4
BYPASS
Telephone Line LEDs
If your service provider uses Centrex lines, you must use the WebUI to enter a line access code to allow calibration
to take place. Before connecting the PSTN lines, see “Line Calibration Configuration” on page 135.
Figure 23. DSL Connection
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 identified
in Figure 23.
For customer service or product information, contact the installer at the number on the cover of this guide. If your
installer is unavailable, visit our website at
www.telephones.att.com/smb or call 1 [phone]. In
Canada dial
1 [phone].