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Chapter 4 Status

View MX2800 STS-1status information by selectingSTATUS from theMAIN MENU (seeFigure 4-1).The information for the

STS-1,VT/Port lines, power supplies, and controller cards is provided.

Figure 4-1.Status Menu

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Chapter 4. Status

STS-1STATE

Displays the current state of the STS-1.The following sections describe theSTS-1status fields in detail.

Card A

Displays the current condition of the network. Possible conditions are listed in the following chart:

Condition

Description

 

 

Normal

The MX2800 STS-1is ready to pass data.

 

 

Alarm

The unit is currently receiving an alarm indication.

 

Alarm types are discussed in the following

 

section, Card A/Card B Alarms.

 

 

In Test

The unit is currently in test mode. See Chapter 6,

 

Diagnostics for information on the test type.

 

 

Card A/Card B Alarms

This field displays the current alarm condition of the

MX2800 STS-1.Possible conditions are given in the following chart:

Condition

Description

 

 

Normal

No alarms are currently being received.

 

 

LOS

(Loss of Signal)

 

The controller card has lost the network receive

 

signal.

 

 

LOF

(Loss of Framing)

 

The controller card detects a framing loss from the

 

network.

 

 

LOP

(Loss of Pointer)

 

The controller card is unable to detect a valid

 

pointer in the receive signal.

 

 

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Chapter 4. Status

Condition

Description

 

 

LOMF

(Loss of Multiframe)

 

The controller card detects loss of H4 multiframe

 

from the network.

 

 

AIS-L

(Line Alarm Indication Signal)

 

The controller card is receiving a line alarm

 

indication signal. The Section Terminating

 

Equipment generates AIS-Lafter detecting LOS

 

or LOF.

 

 

AIS-P

(Path Alarm Indication Signal)

 

The controller card is receiving a path alarm

 

indication signal. AIS-Pis defined as all ones in

 

bytes H1, H2, and H3 as well as all ones in the

 

entire STS synchronous payload envelope.

 

 

RFI-L

(Line Remote Failure Indication)

 

The controller card is receiving a line remote

 

failure indication. RFI-Lis declared when the

 

incoming line remote defect indication (RDI-L,

 

“110” pattern in bits 6, 7, and 8 of the K2 line

 

overhead byte) lasts for 2.5 +/- 0.5 seconds.

 

 

RFI-P

(Path Remote Failure Indication)

 

The controller card is receivinga path remote

 

failure indication. RFI-Pis declared when the

 

incoming path remote defect indication (RDI-P,“1”

 

in bit 5 of the G1 path overhead byte for

 

contiguous frames) lasts for 2.5 +/- 0.5 seconds.

 

 

SLM-P

(Path Signal Lavel Mismatch)

 

The controller card is detecting a signal label

 

mismatch. A received signal label is mismatched

 

if it does not equal the locally provisioned value or

 

the value “equipped non-specific”.

 

 

UEQ-P

(Path Unequipped)

 

The controller card detects that the path is

 

unequipped. The path is unequipped if it is not

 

provisioned. Byte C2 of the STS path overhead is

 

set to zero.

 

 

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Condition

Description

 

 

XCV

(Excessive Code Violations)

 

The controller is receiving excessive code

 

violations exceeding the threshold set by the user

 

(see XCV Threshold on page 3-12).

 

 

TLOS

(Transmit Loss of Signal)

 

The contoller card’s transmitter has failed.

 

 

Network Port Mapping

This entry contains a description of the mapping between network ports and controller cards. In a redundant system with circuit protection the following is displayed:

Card A

 

Port A | Card B

 

Port A

 

 

In a redundant system with network protection the following is displayed:

Card A

 

Port A

|

Card B

 

Port B

 

 

 

 

 

OR

 

 

 

Card A

 

Port B

|

Card B

 

Port A

 

 

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POWER SUPPLY STATE

This field indicates which types of power supplies are installed (AC or DC) in Card A and Card B and gives their current state.

Condition

Description

 

 

Normal

The power supply is fully operational.

 

 

Error

The controller card cannot communicate with the

 

power supply.

 

 

Power Low

The power supply output level is abnormally low.

 

 

Power Fail

The power supply input power is lost.

 

 

Charger Fail

The battery backup charger has failed or has lost

 

its AC connection.

 

 

Battery Low

The battery backup has reached a critical energy

 

point at which it may be unable to supply the unit

 

with sufficient power to maintain operation.

 

 

Temp High

The power supply card temperature is abnormally

 

high.

 

 

Temp Critical

The power supply card temperature is so high that

 

it will soon shut off completely.

 

 

SYSTEM STATE

The system state fields display information regarding the two controller cards. The following sections describe these fields in detail.

Alarm

This field displays what type (if any) of system alarm is currently recognized by the unit. The condition is displayed until it clears up,

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Chapter 4. Status

with the exception of the SWITCHED condition (which is cleared manually).

To clear the SWITCHED condition, selectACKNOWLEDGE ALARMS (ACO) or push theACO button on the front panel. See the sections

ACO Buttons on page 2-12 and Acknowledge Alarms (ACO) on page 4-12 for more information. Possible alarm types are listed in the following chart:

Condition

Description

 

 

Supply Failure

A power supply card has failed.

 

 

Card Failure

A controller card is not passing data.

 

 

Excessive

The MAXSWITCHINGTHRESHOLDhas been

Switches

exceeded. See Max. Switch Threshold on page

 

3-6.

 

 

Switched

A card switch has occurred.

 

 

Card A/Card B

These fields display the current state of the two controller cards. Possible states for the controller cards are listed in the following chart:

Condition

Description

 

 

Not Installed

No controller card is installed in this slot.

 

 

Stand By

The controller card is ready to pass data, but is

 

currently acting as a backup card.

 

 

Active

The controller card is acting as the primary card.

 

 

Failure

The controller card has failed and needs to be

 

replaced.

 

 

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Protection

This field lists the type of protection mode currently active.

Possible states are listed in the following chart:

Condition

Description

 

 

Network

Both controller cards are installed and everything is

 

functioning properly. The unit is in full Network

 

Protection Mode.

 

 

Circuit

Unit is in Circuit Protection Mode and everything is

 

functioning properly,

 

or

 

unit is in Network Protection Mode and a failure on

 

the network has occurred.

 

 

None

One controller card is installed,

 

or

 

the unit is in Circuit Protection Mode and the

 

secondary card has failed.

 

 

For more information on the different types of Protection Modes, see Chapter 7, Circuit and Network Redundancy.

Card Comm

This field displays the current state of the communication link between the two controller cards. OK indicates that the cards are communicating;FAILURE indicates that the cards are not able to communicate with each other. If there is only one card installed,NON-REDUNDANT is displayed.

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TIMING STATUS

The following entries describe the state of the transmit timing subsystem, including the status of the selected reference clock(s), availability and status of the external clock sources, timing acquisition status, and internal clock failures.

Clock Status

This entry describes the condition of the clock synchronization circuitry. The clock status can be any of the following values:

NORMAL – clock synchronization is operating normally.

RECOVERING – clock synchronization is in the process of recovering from a fault.

LOSS OF SOURCE – the reference clock source has become invalid

OUT OF RANGE – the clock synchronization circuit is unable to track the reference source.

OUT OF LOCK – the clock synchronization circuit is unable to lock to the reference source.

Current Source

Indicates the source of the clock. The values for the clock source are:

LOOP – indicates that timing is currently being derived from theSTS-1receive signal.

PRI EXT – indicates that timing is currently being derived from the source assigned to the primary external clock source.

SEC EXT – indicates that timing is currently being derived from the source assigned to the secondary external clock source.

FREE-RUN – indicates that transmit timing is currently being derived from an internal+/-20ppm (Stratum 4) SONET minimum clock source.

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HOLDOVER – indicates that a failure in the selected clock sourc has occurred and the unit has enteredhold-overmode. In this mode, the last known good clock reference frequency will be held within 4.1 ppm for a minimum of 24 hours.

PRI Ext. Clock

The PRI EXT Clock alarms indicate when a failure condition is encountered on the PRImary clock source (if configured). The possible values for this alarm are:

DISABLED – indicates that the selected clock has been disabled by the user and will not be used.

NORMAL – indicates that the clock source is currently being used a the timing reference.

AVAILABLE – indicates that the clock source is available to be used as a timing source if a failure of the current source occurs.

LOS/AIS – indicates that the clock source is not valid due to an LOS or AIS condition.

FAIL – indicates that an internal hardware failure on the unit prevents the clock source from being used.

UNAVAILABLE – indicates that the user has specified a T1/E1 port to be used as an external clock source, but the port has not been enabled.

SEC Ext. Clock

The SEC EXT Clock alarms indicate when a failure condition is encountered on the SECondary clock source (if configured). The possible values for this alarm are:

DISABLED – indicates that the selected clock has been disabled by the user and will not be used.

NORMAL – indicates that the clock source is currently being used a the timing reference.

AVAILABLE – indicates that the clock source is available to be used as a timing source if a failure of the current source occurs.

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LOS/AIS – indicates that the clock source is not valid due to an LOS or AIS condition.

FAIL – indicates that an internal hardware failure on the unit prevents the clock source from being used.

UNAVAILABLE – indicates that the user has specified a T1/E1 port to be used as an external clock source, but the port has not been enabled.

VT/PORT STATE

This field displays the current alarm condition of the VTs/ports.

Possible conditions are given in the following chart:

VT/Port State

Alarm

Description

 

 

OFF

VT in unequipped and T1/E1 port is disabled.

 

 

OK

VT/Port is in a normal state.

 

 

LOS

(T1/E1 Loss of Signal)

 

The unit has lost the receive signal on a T1/E1.

 

 

CAIS

(Carrier Side AIS)

 

The T1 is receiving all ones from the STS side

 

of the network.

 

 

LAIS

(Loop Side AIS)

 

The T1 is receiving all ones from the DSX-1

 

interface.

 

 

XCV

(T1/E1 Excessive Code Violations)

 

The controller card is receiving excessive code

 

violations, exceeding the threshold set by the

 

user (see XCV Threshold on page 3-12).

 

 

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