Cisco WS-X4604-GWY - VoIP Gateway Especificaciones descargar pdf (Pagina 37)

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Cisco Catalyst 4000 Access Gateway Module Installation and Configuration Note

OL-3008-01

Chapter 2 Installing the Access Gateway Module

Connecting the Voice and WAN Interface Modules

Step 5 Verify that the CD LED is green, indicating that the internal DSU/CSU in the module is communicating

with another DSU/CSU.

Table 2-2 describes the T1/FT1 WAN interface module LEDs.

Connecting the 2-Port Asynchronous/Synchronous Serial Modules

This section describes how to connect and verify the status of 2-port asynchronous/synchronous (A/S)

serial modules (WIC-2A/S).

Note The AGM does not support asynchronous mode operation at this time.

The 2-port A/S serial module has “smart” serial ports. The serial cable attached to one of the module’s

ports can determine the electrical interface type and mode (DTE or DCE).

Six types of serial cables (also called serial adapter cables or serial transition cables) are available from

Cisco Systems for use with the 2-port A/S serial module:

• EIA/TIA-232 serial cable assembly

• EIA/TIA-449 serial cable assembly

• V.35 serial cable assembly

• X.21 serial cable assembly

• EIA/TIA-530 serial cable assembly

• EIA/TIA-530A serial cable assembly

All serial cables have a universal plug at the interface module end. The network end of each cable

provides the physical connectors that are most commonly used for the interface. For example, the

network end of the EIA/TIA-232 serial cable is a DB-25 connector, which is the most widely used

EIA/TIA-232 connector.

All serial interface types, except EIA-530, are available in DTE or DCE mode: DTE with a plug

connector at the network end and DCE with a receptacle at the network end. The V.35 assembly is

available in either mode with either gender at the network end. The EIA/TIA-530 assembly is available

in DTE only.

After you install the 2-port A/S serial module, use the appropriate serial cable to connect the serial port

on the module to one of the following types of equipment (see Figure 2-6):

Table 2-2 T1/FT1 WAN Interface Module LEDs

LED Description

LP Yellow indicates that the internal DSU/CSU is in loopback mode.

This LED is off during normal operation.

AL Yellow indicates that one of these alarm conditions is present: no

receive signal, loss of frame signal from the remote station, or an

out-of-service signal from the remote station. This LED is off during

normal operation.

CD Green indicates that the internal DSU/CSU in the WIC is

communicating with another DSU/CSU. This LED is off during

normal operation.

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