Cisco XM Universal Gateways Cisco AS5400XM Manual do Utilizador descarregar pdf (Página 28)

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Cisco AS5400XM Universal Gateway Chassis Installation Guide

OL-6418-02

Chapter 2 Preparing to Install

Preparing to Connect to a Network

2T Serial Ports

Two high-speed 12-in-1 serial ports on the rear panel of the chassis provide backhaul WAN and IP

support.

The following types of serial interface standards (in DTE or DCE devices) are supported:

• EIA/TIA-232

• EIA/TIA-449

• EIA/TIA-530

• EIA/TIA-530A

• EIA/TIA-X.21

• CCITT V.35

Each port supports up to 8 Mbps.

For detailed information about connecting devices to the serial ports, see Chapter 3, “Installing the

Cisco AS5400XM Universal Gateway.” See Appendix C, “Cabling Specifications,” for cable and port

pinouts.

Alarm Port

The three pins on the alarm port are connected to the output of a relay. This relay is controlled by system

software. With the alarm ports connected and configured, Cisco

IOS software polls every one second to

detect the failure events that are configured and turns on the alarm when it detects any failure event.

For detailed information about connecting devices to the alarm port, see Chapter 3, “Installing the

Cisco AS5400XM Universal Gateway.” See Appendix C, “Cabling Specifications,” for cable and port

pinouts.

BITS Port

The BITS port is a coaxial interface that provides external synchronized clocking through a timing signal

generator (TSG).

For detailed information about connecting devices to the BITS port, see Chapter 3, “Installing the

Cisco AS5400XM Universal Gateway.” See Appendix C, “Cabling Specifications,” for cable and port

pinouts.

Power Supply Considerations

Check the power at your site to ensure that you are receiving “clean” power (free of spikes and noise).

Install a power conditioner if necessary.

Warning

The device is designed to work with TN power systems.

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