Cisco Systems OL-12811-01 Manual De Usuario
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Connecting Cisco ISDN PRI Network Modules to
the Network
the Network
Revised: May 1, 2008, OL-12811-01
This guide describes how to connect Cisco Integrated Services Digital Network (ISDN) Primary Rate
Interface (PRI) network modules to your network. It contains the following sections:
Interface (PRI) network modules to your network. It contains the following sections:
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Note
Unless specifically identified, references to PRI modules in this chapter include all these network
modules.
modules.
Note
Do not install an ISDN BRI network module in the same chassis as an ISDN PRI network module, unless
you are using Cisco IOS Release 11.3(3)T or later. Earlier Cisco IOS releases do not support this
configuration.
you are using Cisco IOS Release 11.3(3)T or later. Earlier Cisco IOS releases do not support this
configuration.
CT1/PRI modules are available with or without a built-in channel service unit (CSU), and with one or
two ports. CT1/PRI modules connect to an external CSU; CT1/PRI-CSU modules connect directly to the
network. Each T1 module provides up to 24 virtual channels per T1 port. Each channel can be configured
individually as a serial interface.
two ports. CT1/PRI modules connect to an external CSU; CT1/PRI-CSU modules connect directly to the
network. Each T1 module provides up to 24 virtual channels per T1 port. Each channel can be configured
individually as a serial interface.