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Cisco 2600 Series Hardware Installation Guide

Cisco 2600 Series
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2-12
Cisco 2600 Series Routers Hardware Installation Guide
OL-2171-02
Chapter 2 Preparing to Install the Router
Preparing to Connect to a Network
Figure 2-6 Serial Interface Adapter Cables
ISDN BRI Connections
The BRI WAN interface cards provide Integrated Services Digital Network (ISDN) Basic Rate Interface
(BRI) connections. The BRI modules and BRI WAN interface cards are available with either an S/T
interface that requires an external Network Terminator 1 (NT1), or a U interface that has a built-in NT1.
You can install the BRI modules in any available slot in the chassis.
Warning
Network hazardous voltages are present in the BRI cable. If you detach the BRI cable, detach the
end away from the router first to avoid possible electric shock. Network hazardous voltages also
are present on the system card in the area of the BRI port (RJ-45 connector), regardless of when
power is turned OFF. To see translations of the warnings that appear in this publication, refer to
the Regulatory Compliance and Safety Information document that accompanied this device.
Warning
The ISDN connection is regarded as a source of voltage that should be inaccessible to user
contact. Do not attempt to tamper with or open any public telephone operator (PTO)-provided
equipment or connection hardware. Any hardwired connection (other than by a nonremovable,
connect-one-time-only plug) must be made only by PTO staff or suitably trained engineers. To see
translations of the warnings that appear in this publication, refer to the Regulatory Compliance
and Safety Information document that accompanied this device.
Router connections
EIA/TIA-449 V.35 X.21
Network connections at the modem or CSU/DSU
H2485
EIA/TIA-232 EIA-530

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Cisco 2600 Series Specifications

General IconGeneral
BrandCisco
Model2600 Series
CategoryNetwork Router
LanguageEnglish

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