Cabletron Systems 2000 manual T1 Configuration Window, Line Status, T3 Line Type, T3 Loop Back

HSIM-W87 Configuration

Line Status

This Þeld indicates the line status of the interface. It contains loopback state and failure state information. Scroll to view all of the status information, if necessary.

T3 Line Type

Select the type of DS3 or C-bit application implementing this interface: M23 or CbitParity. The type of interface affects the interpretation of the usage and error statistics.

T3 Loop Back

Select the loopback conÞguration of the T3 interface. Options are:

No Loop	Not in a loopback state. A device that is not capable of
	performing a loopback on the interface will always have this
	value.
Payload	The received signal at this interface is looped through the device.
	Typically the received signal is looped back for retransmission
	after it has passed through the devicesÕs framing function.
Line Loop	The received signal at this interface does not go through the
	device, but is looped back out.

Transmit Clock Source

Select the T3 Transmit Clock Source: Loop-Timing, which indicates that the recovered receive clock is used as the transmit clock, or Local-Timing, which indicates that an internal clock source is used.

To change an option in the T3 ConÞg window:

1.In the Line Type, Loop Back, and Transmit Clock Source sections, click to select the desired option.

2.Click the Apply button to set your changes.

The T1 Configuration Window

You can set certain variables for the DS1 connections using the T1 ConÞg window. To access the T1 ConÞg window:

1.Click on the appropriate Module Index to access the Module menu.

2.Select HSIM W87 Config (T1). The T1 Config window,Figure 8-2, will appear.

The T1 Configuration Window 8-3