AT&T Syn248 Quick Start Manual page 2

4
Connect the Gateway to the LAN and AC Power
1. Connect a supplied CAT 5 LAN cable from your office LAN to the
Gateway LAN port.
2. Plug the AC adapter into an electrical outlet not controlled by a wall
switch and the DC plug end into the Gateway DC 5.1V port. Wait up
to one minute until the Gateway screen lights up.
The Gateway LINE LEDs will blink for up to 15 seconds while the lines
calibrate to the Gateway.
LAN Port DC 5.1V Port
7
System Check
When the Gateway finds the network and
another Syn248 device, the display changes from
"Synchronizing" to "Synchronized." The red LINE
LEDs should turn off for each line you connected
in Step 3, indicating that the lines have calibrated
to the Gateway and you can now make calls on those lines.
If your telephone service provider changes your line configuration
or you need to change Gateway LINE port assignments, you must
recalibrate the affected lines by disconnecting them for 15 to
30 seconds, then reconnecting them. The LINE LED will flash for
approximately 15 seconds, then go out.
After synchronizing with the Gateway,
the first Deskset connected to the LAN
displays "EXT 200" on its screen.
5
Install the Desksets
You can install the Desksets on a desktop or mount them on the wall.
• Desktop setup requires the Deskset stand, which provides two
positions: 45° and 60°. If wall-mounting or using the stand at 60°,
slide out and rotate the handset tab to secure the handset when it
is on hook.
• When wall-mounting the Deskset, connect the LAN cable and power
adapter first. Do not connect the LAN cable to the LAN switch yet.
• Connect the handset cord. Insert the coiled end into the Deskset
handset port (located on the side of the unit) and insert the longer
straight section into the handset.
• If not using PoE, plug the AC adapter into an electrical outlet not
controlled by a wall switch and the DC plug end into the Deskset DC
5.1V port.
Desktop installation
Handset tab
(under handset)
Handset cord
port (on side)
8
Connect the Remaining Desksets
Connect the remaining Desksets to the LAN switch. Each Deskset will
be assigned an extension number in sequence: 201, 202, and so on. You
can change extension numbers and assign user names later.
See the Syn248 Installation and Configuration Guide, available from
www.telephones.att.com/smb
, for complete system configuration
information.
6
Connect the first Deskset to the LAN
Connect a CAT 5 LAN cable from your LAN switch to the Network port
on the back of the Deskset.
You can also connect a PC to the PC port on the Deskset so that the
Deskset and PC share the same network connection.
It is not recomended to use the PC port for a computer required to run
network-intensive applications such as CAD, graphics, etc.
Wall-mounting
Network port
For customer service or product information, visit our web site
at www.telephones.att.com/smb
In Canada, call
© 2012 Advanced American Telephones. All Rights Reserved. AT&T
and the AT&T logo are trademarks of AT&T Intellectual Property
licensed to Advanced American Telephones, San Antonio, TX 78219.
tm
Syn248
PC port
or call 1 (888) 386-2006.
1 (888) 469-2005.
is a trademark of Advanced American Telephones.
Printed in China Issue 1.0 03/12