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Symmetricom TimeHub 5500 Reference Guide

Symmetricom TimeHub 5500
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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.

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Symmetricom TimeHub 5500 Specifications

General IconGeneral
BrandSymmetricom
ModelTimeHub 5500
CategoryData Loggers
LanguageEnglish

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