Connecting The Isdn Gateway; Before You Start; Your Isdn Connection - Cisco TelePresence ISDN GW 3241 Getting Started

Connecting the ISDN gateway

Before you start

IMPORTANT
safety information at

Your ISDN connection

To reduce the risk of fire, use only 26 AWG or larger telecommunication
line cord.
Outside North America
Check with your network provider to ensure that your incoming ISDN PRI line is
terminated in an NTU/CSU (Network Termination Unit/ Channel Service Unit). If
it is not, then seek their advice regarding the provisioning of such a device. Do not
connect the ISDN gateway directly to an external ISDN line.
Within North America
If your network provider has not terminated all of your incoming ISDN PRI lines
with an NTU/CSU, Cisco recommends that you install a suitably approved CSU to
protect the ISDN gateway from damage by surges on your ISDN PRI lines.
If you do not install a CSU between the incoming ISDN PRI lines and the
ISDN gateway, then the ISDN gateway must be installed in a restricted
location as defined by EN, IEC and UL60950. This is defined as an area
intended for qualified or trained personal only with access controlled by a
locking mechanism such as a key.
If you do not install a CSU between the incoming ISDN PRI lines and the
ISDN GW 3241, then you are required to connect the unit to a
protective earth as follows:
Connect a protective earth cable (not supplied) to the terminals on the
rear of the chassis marked with the earth symbol
Connect the other end of this cable to a true earth.
The earth terminal accepts two M4 screws on a 16mm (5/8") spacing for
!
use with a two hole copper lug (such as the Panduit LCD10-10A-L).
: Before installing the ISDN GW 3241, you must read the
http://www.cisco.com/go/telepresence/safety
Connecting the ISDN gateway
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