Installation guide

A-20

Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases

OL-1165-06

Appendix A System Specifications

Network Synchronization

Network Management Control

External Clock Sources: The IGX switch synchronizes to the nearest, highest-stratum

clock available. Any T1, E1, T3, E3, OC3 (STM-1) line, trunk, or

optional external clock inputs can serve a clock source.

Internal to Node Source: T1: 1.544 MHz, ± 10 ppm (stratum 4)

E1: 2.048 MHz, ± 10 ppm (stratum 4)

Clocking Hierarchy: Dynamic primary, secondary, and tertiary clocking

Note Without a defined external clock reference, the IGX

defaults to its internal clock source.

Network Control Terminal: Cisco WAN Manager workstation and Cisco software required

for graphical display of network status, statistics gathering and

display, and automatic downloading of software.

Control Terminal: DEC VT100, WYSE 85, Televideo 970, or equivalent terminal

for basic system configuring and alarm monitoring.

Remote Alarm Reporting: Auto-dial modem connects to one of two control ports on each

IGX node for automatic reporting of network alarms.

Remote Diagnostics: Auto-answer modem connects to one of two control ports on

each IGX node for remote diagnostic access by Cisco TAC or

other authorized personnel.

Network Control Ports: Two ports per node—one EIA/TIA 232C interface and one

Ethernet LAN port.

Alarm Notification: Status of all trunks and nodes in network distributed to and

stored by each individual node. Reported to Cisco WAN

Manager workstation at connecting node.

External Alarms: Meets Telecordia Technologies (formerly Bellcore)

Compatibility Bulletin #143 and AT&T Technical Reference

PUB 43801 DS1 (T1) facility alarm requirements when

equipped with DTI group.

Indicators and Controls: Active and Fail lights on all cards and power supplies.