Cisco UC520-24U-8FXO-K9 Overview page 40

Connect the Interfaces
To connect a UC 520 to a WAN, PSTN, and ISDN, perform these steps in any order:
For connecting to a cable or DSL modem: Connect an RJ-45 cable to the WLAN port on the
Step 1
front panel of the UC 520. Connect the other end of the cable to the cable or DSL modem.
For connecting to an ISDN line: Connect an RJ-45 cable to one of the BRI or T1/E1 PRI ports
Step 2
on the front panel of the UC 520 and connect the other end of the cable to a PC or hub or to
a ISDN wall jack.
For connecting to a PSTN: Connect an RJ-11 cable to one of the FXO ports on the front panel
Step 3
of the UC 520 and connect the other end of the cable to a PSTN line or a station interface on
a PBX.
Connect the Devices
To connect wireless access points, Cisco Unified IP phones, and other devices to a UC 520 or a Cisco
Catalyst Express 520 switch, follow these steps in any order:
Install and connect Cisco Unified IP phones to the PoE ports on the front panel of the UC 520
Step 1
and if installed, to PoE ports on front of the switch.
Note The PoE ports on the UC 520 provide up to 15.4 W of power to connected
Cisco prestandard and IEEE 802.3af-compliant powered devices, with a maximum of
80W total on the eight PoE ports.
The PoE ports on the Catalyst Express 520 provide up to 15.4 W of power to
connected Cisco prestandard and IEEE 802.3af-compliant powered devices if the
switch detects that there is no power on the circuit. On a per-port basis, you can
control whether the PoE port automatically provides power when a powered device is
connected by using the Configuration Assistant. By default, the setting is Auto.
The back panel of the Cisco Unified IP phone might have more than one RJ-45 connector. Use
the LAN-to-phone connector to connect the phone to the UC 520. See the Unified IP Phones
7900 Series Install and Upgrade Guide for your IP phone at
http://www.cisco.com/en/US/products/hw/phones/ps379/prod_installation_guides_list.html.
For connecting to a fax: Connect an RJ-11 cable to one of the FXS ports on the front panel
Step 2
of the UC 520. Connect the other end of the cable to a fax unit.
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