AT&T Syn248 SB35010 Installation And Configuration Manual page 28

Syn248 Installation and Configuration Guide
To install an overhead paging system:
1. Plug an audio cable from the OHP device into the "Paging Output" jack of the audio
in/out cable supplied with the SB35025 Deskset, as shown in Figure 13.
If you need to hard-wire a connection between your OHP device and the supplied
audio in/out cable, you can configure a stereo audio cable as follows:
a. Remove the 1/8-inch (3.5 mm) plug from one end of the cable.
b. Strip enough shielding from the cable to expose the three wires inside.
c. Identify the Ring (Right channel) and Ground wires. Depending on the cable, the
Ring wire may be red and the Ground wire may be bare/unshielded, as shown in
Figure 14. You can use a voltmeter to properly identify the wires.
3.5 mm stereo plug to
supplied audio in/out cable
d. Trim the Tip (Left channel) wire to ensure it does not contact other wires or
terminals.
e. Connect the Ground wire to the negative terminal and the Ring wire to the
positive terminal on the OHP device.
f. Connect the other end of the hardwired cable to the "Paging Output" jack of the
supplied audio in/out cable.
2. Connect the supplied audio in/out cable to the SB35025 Deskset AUX I/O port.
3. Log on to the WebUI to enable the OHP device. See
WebUI" on page 36
Installation
RESET
SB35025 Deskset
Figure 13. Overhead Paging System Connection
Figure 14. Hard-Wiring a Stereo Cable to the OHP
and "Overhead Paging" on page
27
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Overhead Paging System
Paging
Output
Tip (Left Ch.)—
Do not wire to OHP
Ground
Ring (Right Ch.)
"Accessing the Administrator
51.