Cabletron Systems CSX200 User Manual

Also see for SPECTRUM: User guide User guide User guide User guide Guide

Contents

T1 Port Configuration4-7CSX WAN ConfigurationIn this window you will see the following fields:Line StatusDisplays the status of the port. The status can be one of the following:• Inactive — The connection through this port is not active.• OK — The port is the active port and the connection is operational.• In Alarm — The port is the active port and the connection has experienced afailure.The left side of this portion of the window is color-coded to indicate the linestatus: Blue for Inactive; Green for OK; and Red for In Alarm.Port 1Displays the port type, i.e., Fractional T1.Circuit IdThe Circuit Id field lets you enter a character string — specified by the circuitvendor as a circuit identifier — for troubleshooting purposes.Line CodeDisplays the line coding for the Full T1 line. The available selections are B8ZS andAMI. The default for this field is B8ZS. If AMI is chosen, the line code selection oneach active interface cannot be None (see Configuring the WAN Interfaces onpage 4-11 for more information). The line code should be set according to yourWAN service provider’s instructions.Line Build OutDisplays the value of the Line Build Out setting, which controls the amount ofattenuation of the T1 signal. The possible values in this field are 0 db, -7.5 db,-15 db, and Unknown. You should set Line Build Out at the device according toyour WAN service provider’s instructions.Framing TypeDisplays the type of service you are using over your T1 line (i.e., ESF – ExtendedSuper Frame DS1, or D4 – AT&T D4 format DS1). You should set the FramingType at your device according to your WAN service provider’s instructions.Clock SourceDisplays the T1 Transmit Clock Source. Loop Timing indicates that the recoveredreceive clock is used as the transmit clock. Local Timing indicates that an internalNOTEWhile it is possible for the next three fields Line Build Out, Framing Type, and ClockSource to be set remotely on a CSX, Cabletron recommends against it, as you mayinadvertently interrupt a working connection. All three should be set at the hardwarelevel with switches on the device. For more information on how to set these switches, seeyour hardware documentation.