To Next Page

To Previous Page

Keywords

Keyword Description

96 TimeHub 5500 TL1 Reference Guide 097-55501-02 Issue 7 – January, 2005

BRIDGED (Bridged Input)

This keyword allows inputs 1 through 4 to use a bridged rather than a terminated

DS1 input. A bridged connection typically has signal levels at about 1/10 (or 20 dB

down) from the normally terminated DS1 input (nominally 3 volt peak into 100 Ω).

This setting causes signal conditioning circuitry associated with the selected input

channel to appropriately adjust to receive the lower signal strength associated with

a bridged input. To configure an input channel to use a bridged input, set the

BRIDGED setting for that channel to Y. The keyword format is:

BRIDGED=<value>;

Command Examples:

Enable BRIDGED mode for input 3:

ED-SYNC::CLK-3:SV13:::BRIDGED=Y;

The response is:

SYMMBITS 03-03-24 09:10:50

M SV13 COMPLD

;

Parameter Value Description

<value> Y B8ZS coding is enabled

N B8ZS coding is disabled

Parameter Value Description

<value> Y The selected input accepts a bridged input

N The selected input does NOT accept a bridged input;

it only accepts a normally terminated DS1 signal.

This is the default

Note: The BRIDGED setting applies only to inputs 1 through 4. Clock

cards that have inputs 5 through 8, which are used only for DS1

performance monitoring, are not configurable but accept only bridged

inputs.

Symmetricom TimeHub 5500 Reference Guide

Other manuals for Symmetricom TimeHub 5500