The DS1 Over DS3 Port object defines an individual DS1 channel that provides a T1 or E1 connection over a DS3 port.
Each DS1 Over DS3 Port object is a child of a DS3 Port object.
In the EMS System Explorer, the name shown for each DS1 Over DS3 Port indicates
For example, DS1 Over DS3 Port (Controller A, Slot 2, Port 3, Chan 13) "DS3/1/02/03/013".
In general, you will add DS1 Over DS3 Port objects using the "create all ports" action on the DS3 port's parent Adaptor object, and should not need to create them individually.
To start using DS1 Over DS3 ports, you need to do the following:
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If you attempt to quiesce deactivate the object when it is using a DS0 for MTP2 links, it will not deactivate until you deactivate the signaling cross connect . |
Object-Specific Actions | |
Start local line loopback | This action applies only for a DS1 port on a PB4000, PB4500 or PB5000 adaptor. It puts the DS1 port into line loopback mode. You cannot use this action if the port is already in loopback mode, if the far end is in loopback mode (or a far-end loopback request is outstanding), or if an out-of-service Bit Error Rate Test is running. |
Stop local line loopback | This action applies only for a DS1 port on a PB4000, PB4500 or PB5000 adaptor. It takes the DS1 port out of line loopback mode into normal operation. You can use this action only when the port is already in local line loopback mode. |
Start far-end line loopback | This action applies only for a DS1 port on a PB4000 adaptor with Line framing set to ESF or ESF MF, or on a PB4500 or PB5000 adaptor with Line framing set to ESF, ESF MF, D4 or D4 MF. It requests the remote equipment to operate in line loopback mode. You cannot use this action if the local port is already in loopback mode, if a far-end loopback request is outstanding, or if an out-of-service Bit Error Rate Test is running. Loopback signaling uses the facility data link channel when the Line Framing is configured for ESF or ESF MF, or inband codes when configured for D4 or D4 MF. |
Stop far-end line loopback | This action applies only for a DS1 port on a PB4000 adaptor with Line framing set to ESF or ESF MF, or on a PB4500 or PB5000 adaptor with Line framing set to ESF, ESF MF, D4 or D4 MF. It requests the remote equipment to move out of line loopback mode into normal operation. Loopback signaling uses the facility data link channel when the Line Framing is configured for ESF or ESF MF, or inband codes when configured for D4 or D4 MF. |
Start BERT | This action applies only for a DS1 port on a PB4000, PB4500 or PB5000 adaptor. It starts out-of-service Bit Error Rate Testing on the port. (This is independent of the in-service Bit Error Rate monitoring reported by the Bit Error Rate field.) You cannot use this action if the port is already in local line loopback mode, if a far-end loopback request is outstanding, or if an out-of-service Bit Error Rate Test is already running. |
Stop BERT | This action applies only for a DS1 port on a PB4000, PB4500 or PB5000 adaptor. It stops out-of-service Bit Error Rate testing on the port. You can use this action only when the port is already running an out-of-service Bit Error Rate Test. |
Parameter |
Access |
Description |
Port name | Read only | A unique identifier for this device among all other devices on the Media Gateway. This identifier is used by other objects that need to reference this device. |
Additional information | Change | A text field that can be used to store information about the DS1 Over DS3 Port. This field is optional; you can supply up to 64 characters of free-form text. The text wraps to the width of the field on screen, or you can use the Enter key to force linebreaks. |
Description | Read only | Information about the controller, chassis slot number and port number associated with this port. |
DS1 type | Read only | Specifies the type of DS1 link. Values:
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Channel number | Create | Primary rate channel number of this DS1 channel within the DS3 port. The valid port numbers depend on the Channelization setting of the parent DS3 port:
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Line framing | Change Inactive | Specifies the framing used on this DS1 port. This setting must match the framing on the incoming DS1 line; check with the provider of the line if necessary. Values:
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Line status | Read only | Specifies the line status of the DS1 interface. One or more of the following values may be set:
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Bit Error Rate | Read only | This field appears only on an interface below a PB4000, PB4500 or PB5000 adaptor card. It gives an indication of the current rate at which bit errors are being detected on the DS1 interface. BER is calculated continuously, regardless of whether an out-of-service Bit Error Rate Test is being run. Values:
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Clock reference | Change Inactive | Specifies whether the clocking on this DS1 link is used as a general clock reference. You should leave this value set to No. Values:
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Supported terminations | Read only | Specifies which termination protocols this port supports. Values:
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Deactivation mode | Change | Specifies how child objects should be deactivated when deactivating this object. Values:
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Loopback - local loopback status | Read only | This field appears only for a DS1 port on a PB4000, PB4500 or PB5000 adaptor. Specifies whether the port is currently operating in local loopback mode. This means that all data sent to the port is sent back unchanged to the remote equipment, for use in test procedures such as Bit Error Rate Testing (BERT). Values:
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Loopback - far-end loopback request status | Read only | This field appears only for a DS1 port on a PB4000 adaptor with Line framing set to ESF or ESF MF, or on a PB4500 or PB5000 adaptor with Line framing set to ESF, ESF MF, D4 or D4 MF. Specifies whether the MetaSwitch NE has requested the remote equipment to operate in loopback mode. This means that all data sent from the port is sent back unchanged by the remote equipment, for use in test procedures such as Bit Error Rate Testing (BERT). Values:
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Loopback - allow automatic loopback activation | Change Inactive | This field appears only for a DS1 port on a PB4000 adaptor with Line framing set to ESF or ESF MF, or on a PB4500 or PB5000 adaptor with Line framing set to ESF, ESF MF, D4 or D4 MF. Specifies whether this port should automatically accept loopback activation requests from the remote equipment. Values:
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Bit Error Rate Test (BERT) results - test running | Read only | This field and the following Bit Error Rate Test fields appear only for a DS1 port on a PB4000, PB4500 or PB5000 adaptor. They relate to out-of-service Bit Error Rate Testing started using the action pushbuttons, which is independent of the in-service monitoring indicated by the Bit Error Rate field.
Specifies whether a Bit Error Rate Test is currently running on this port. Values:
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Bit Error Rate Test (BERT) results - test pattern synchronized | Read only | This field appears only if Bit Error Rate Test (BERT) results - test running is True. Specifies whether the test pattern used in BERT is currently synchronized (and hence whether the error rate can be measured). Values:
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Bit Error Rate Test (BERT) results - total test time | Read only | The length of time in seconds for which the current BERT has been running, or the duration of the most recent BERT if it is not currently running. This field is updated once every minute. |
Bit Error Rate Test (BERT) results - loss of synchronization seconds | Read only | The total length of time in seconds for which synchronization has been lost during the current BERT, or during the most recent BERT if it is not currently running. This field is updated once every minute. |
Bit Error Rate Test (BERT) results - loss of signal (LOS) seconds | Read only | The total length of time in seconds for which there has been a Loss Of Signal condition during the current BERT, or during the most recent BERT if it is not currently running. This field is updated once every minute. |
Bit Error Rate Test (BERT) results - Bit Error Rate | Read only | The Bit Error Rate as measured by the current BERT, or by the most recent BERT if it is not currently running. If the test runs with loss of synchronization conditions, this field shows the measured BER while the test was synchronized.
This is displayed as a floating-point number with three significant figures:
15 minutes: accuracy to order 10-8 2.5 hours: accuracy to order 10-9 1 day: accuracy to order 10-10 |
Bit Error Rate Test (BERT) results - maximum interval Bit Error Rate | Read only | The highest Bit Error Rate measured during any five-second interval by the current BERT, or by the most recent BERT if it is not currently running. This is displayed as a floating-point number with three significant figures, in the same format as for Bit Error Rate Test (BERT) results - Bit Error Rate. |
Alarm state | Read only | Specifies whether any alarms are currently raised for this object. Values:
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Alarm log correlator | Read only | Identifier of the log message for the event that caused the last Attention Required alarm state for this object. This field is reset when the Attention Required alarm events field is reset to zero. |
Attention Required alarm events | Read only / Reset | Number of times (since the alarm count was reset) that this object's alarm state has gone to Attention Required. |
Alarm state changed timestamp | Read only | The time at which the Alarm state last changed. |
Alarm events reset timestamp | Read only | The time at which the Attention Required alarm events was last reset to zero. |
Diagnostics - logging - log level | Change | Specifies the level of logs recorded for this object. Logs with a priority equal to or greater than the priority specified are recorded. Set to Default level to use the system-wide default level. Values:
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Diagnostics - API trace - enabled | Change | Specifies whether API tracing is enabled for this object. Values:
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Diagnostics - API trace - trace tag | Change | An optional diagnostics tag inserted into API tracing and PD logging for this object. This tag may include any ASCII characters. |
Requested status | Read only | Specifies whether an administrator has attempted to activate the port. Values:
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Actual status | Read only | Specifies the current status of the port. Values:
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