ADTRAN 3060 Protection Configuration Option Settings, Protection Options Settings Description

Page 15

Table 4. Protection Configuration Option Settings

Protection Options

Settings

Description

 

 

 

Protection Mode

Auto

System automatically switches from Main to AUX with no user intervention.

 

 

Switch is initiated by loss of sync on Main or exceeding BER Threshold.

 

 

Alarms and switchover notification are generated via the SCU. Auto Mode

 

 

also allows reversion back to Main once sync is reestablished or the error

 

 

count drops below the BER Threshold.

 

 

 

 

Auto Hold

Auto Hold provides system protection identical to Auto Mode, except that

 

 

reversions are not allowed to the Main without user intervention. Once

 

 

switchover has occurred to the AUX circuit, data can only be reverted by

 

 

modifying any option on the terminal screen or by the pushbutton on the

 

 

faceplate of the LTU.

 

 

 

 

Manual Main

Manual Main requires manual switchover to the AUX circuit by user

 

 

intervention. Switchover can be accomplished via the faceplate pushbutton

 

 

or the terminal screen. The SCU will make notification of a Main circuit

 

 

failure, but will not report switchover until the data is manually switched to

 

 

the AUX circuit.

 

 

 

 

Manual AUX

Data is manually forced to the AUX circuit and will remain there until the

 

 

mode is changed via the terminal screen or by pushbutton on the faceplate.

 

 

All other option settings are ignored while in this mode.

 

 

 

 

 

In the Manual Disable mode, the Main and AUX circuits act as two

 

Manual Disable

independent units. Separate data can run on either circuit without affecting

 

 

the operation of the other. All other option settings are ignored while in this

 

 

mode.

 

 

 

Minimum Hold-in Time

1-99 minutes

Defines the minimum time that data will remain on the AUX circuit. This

 

 

option is only valid when in Auto or Auto Hold Protection Modes.

 

 

 

BER Threshold

1E-4, 1E-5, 1E-6,

Allows the user to set the Bit Error Rate that will cause switchover from the

 

1E-7

Main to AUX circuit when exceeded. BER Threshold can also be set from

 

 

the Main card's protection configuration and should coincide with the

 

 

settings used on the AUX card.

 

 

 

BER Interval

5, 10, 15 minutes

Defines the interval over which errors will accumulate for comparison with

 

 

the BER Threshold setting. BER Interval can also be set from the Main card's

 

 

protection configuration and should coincide with the settings used on the

 

 

AUX card.

 

 

 

Lock-in Hours

0-99

Defines duration of locking to the AUX circuit upon reaching the Switch to

 

 

AUX Limit.

 

 

 

Switch to AUX

Limit 1-9

Defines the number of times switch can occur from Main to AUX over the

 

 

defined Locking Check Interval before the system is locked to the AUX

 

 

circuit for the defined Locking Hours.

 

 

 

Lock-in Check Interval

1-99

Defines the interval over which the Switch to AUX Limit is compared before

 

 

locking in the data to the AUX circuit for the Locking Hours duration.

 

 

 

61182007L1-5A

Section 61182007L1-5, Issue 1

15

Image 15
Contents General Adtran Total Access 3010 LTURevision History InstallationFaceplate LED Indicators Powering OptionsLTU Alarm Outputs Faceplate IndicatorsHdsl System Testing Display Off Mode SCU Control Port Operation HdslFront Panel Screen Abbreviations MenusMajor Minor Major Minor InfoLTU Access Module Menus ScreenNTU REG1REG2 CAS CRC4HDB3 CFM HDB3 Enabled CRC4LTU E1 CAS HDB3No Alarm Conditions LTU REG NTU LP1 and LP2 GuidellinesNET Cust SES UAS BPV LTU LP1 REG NTUNET Cust LP2 ES SES UAS BPVProtection Configuration Screen Main Protection Options Settings Description Protection Configuration Option SettingsSet Circuit ID Screen Hdsl Deployment Guidelines MaintenanceTotal Access 3000 LTU Specifications Product SpecificationsWarranty and Customer Service L1-5, Issue Materials Required Prerequisite ProceduresInstall the LTUs Into Total Access IntroductionInstall the NTU Install the DUAL-SLOT Standalone HousingAdjust Wiring at Dual Remote Housing Reset ALL Equipment to Operating ConditionDisabling Protection Switching Disabling Protection SwitchingL1-5, Issue Install the DS3 MUX Modules Unpack and Inspect the the Total Access DS3 MUX ModulesProvision the DS3 MUX Table B-1. Faceplate LED IndicatorsProvision the LTU Install the LTUInstall the NTU into the Dual-Slot Remote Housing 61182007L1-5A L1-5, Issue L1-5, Issue