Specifications

5-38

Reference Guide

Model No.

Running Head

IP Packet Routing CPU Card

5.5.1 nX64 Screen

The Enhanced NMS Connectivity screen (Figure 5-18) provides a solution to increase channel

bandwidth for management purposes. FDL was previously the answer to this need for not

consuming valuable bandwidth. However, by giving up a time slot the increase of bandwidth

provided better connectivity allowing a variable bandwidth from 56 Kbps to 1.54 Mbps for T1

and 2 Mbps for E1. A single 1x64 kpbs channel improves the bandwidth over FDL 16 times.

Figure 5-18. nX64 Main Screen

The 5.x CPU includes four controllers for use in various types of communication. All four

controllers are mapped through two TSA (Time Slot Assigner) devices and will share a

common pool of 64 time slots. The TSAs are cross-connected to the TDM (Time Division

Multiplexing) bus via MTUSs (Memory Time Switches).

Currently, the four nx64 ports can only be assigned to WAN resources.

Node_1 | C1 CPU XCON Rev XA-0 Ser 00009 | 12-31-99 14:33

C1 C2 C3 C4

STATE actv stdby stdby stdby

WAN w1-1 none none none

TS table table table table

FORMAT hdlc fr hdlc hdlc

RATE 56k 64k 64k 64k

MTU 240 1500 1500 1500