Physical DS3 Port

The Physical DS3 Port object defines a port (physical interface) on a DS3 communications card, providing TDM connectivity into the PSTN.

Each Physical DS3 Port object is a child of an Adaptor object with adaptor type TD2000, TD2100, PB4000, PB4500 or PB5000.

In the EMS System Explorer, the name shown for each Physical DS3 Port indicates

For example, 'Physical DS3 Port (Controller B, Slot 3, Port 1)'.

In general, you will add Physical DS3 Port objects using the "create all ports" action on the parent Adaptor object, and should not need to create them individually.

To start using DS3 ports, you need to do the following:


If you attempt to quiesce deactivate the object when it is using a DS0 for MTP2 links or ISDN D-channels , it will not deactivate until you deactivate the signaling cross connect or ISDN PRI . (This will usually be because a DS1 over DS3 Port child object is using the DS0.)


Parameter

Access

Description
Description Read only Information about the controller, chassis slot number and port number associated with this port.
Port number Create An identifier for this Physical DS3 Port. The valid port numbers depend on the parent adaptor type, as follows.
  • A TD2000 or TD2100 adaptor has one child DS3 port with port number 1.
  • A PB4000 adaptor has one child DS3 port, with port number 2.
  • A PB4500 or PB5000 adaptor has three child DS3 ports, with port numbers 1 - 3.
Additional information Change A text field that can be used to store information about the Physical 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.
Channelization Change Inactive Indicates whether this DS3 line is channelized into T1 or E1 channels. Values:
  • T1
  • E1
Line framing Change Inactive Specifies the DS3 framing structure used on this DS3 port. This must match the framing on the incoming DS3 line. Values:
  • M23 (default)
  • C-bit parity
Line length Change Inactive Specifies the approximate length of the DS3 cable connected to this port. This is used to control the DS3 transceivers to ensure adequate signal strength on the line. Values:
  • Less than 600ft (180m)
  • More than 600ft (180m)
Line status Read only Specifies the line status of the DS3 interface. One or more of the following values may be set:
  • AIS
    Alarm indication signal: either no child DS1 ports are active, or a remote fault is affecting data that would otherwise be received at this port.
  • RAI
    Remote alarm indication: a remote system is not receiving the data that the port is sending.
  • LOF
    Loss of framing: the port is receiving a signal but is unable to synchronize with it to recover the data.
  • LOS
    Loss of signal: no receive signal can be detected.
Deactivation mode Change Specifies how child objects should be deactivated when deactivating this object. Values:
  • Normal (default)
    Shut down child objects normally before deactivating the object.
  • Quiesce
    Deactivating the Physical DS3 Port in quiesce mode will wait for all existing child objects using the port to be completed before deactivation. No new child objects using this port will be accepted during this deactivation period.
  • Abort
    Deactivate the object and all its child objects immediately. (This may result in errors at remote systems.)
If a Normal or Quiesce deactivation is already in progress, you can force a faster deactivation by changing the value from Normal to Quiesce or from Quiesce to Abort.
Alarm state Read only Specifies whether any alarms are currently raised for this object. Values:
  • Clear
    No alarms are currently raised.
  • Attention Required
    Attention Required - the object is not operating normally, and needs operator intervention.
  • Attend To Dependent
    Attention Required elsewhere - another object on which this object depends is not operating normally.
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.
DS1 Port Attention Required alarms Read only The total number of DS1 Over DS3 Ports (and their child objects) associated with this DS3 Port that are in Attention Required state.
DS1 Port Attention Required alarm events Read only / Reset The total number of times that the alarm state for a DS1 Over DS3 Port child object of this DS3 Port has gone to Attention Required.
Summary child alarm state Read only Summarizes the alarm status for all children of this object. Values:
  • Clear
    No alarms are currently raised.
  • Attention Required
    Attention Required - one or more child objects are not operating normally, and need operator intervention.
  • Attend To Dependent
    Attention Required elsewhere - another object on which one or more child objects depend is not operating normally.
Requested status Read only Specifies whether an administrator has attempted to activate the port. Values:
  • Active
    The object has been activated.
  • Inactive
    The object has not been activated or has been deactivated.
  • Disabled
    The object has been disabled.
Actual status Read only Specifies the current status of the port. Values:
  • Active
    The object is active.
  • Activating
    Activation is in progress.
  • Deactivating
    Deactivation is in progress.
  • Inactive
    The object is inactive.
  • Disabled
    The object has been disabled.
  • Activation Failed
    The object is inactive because an activation attempt has failed.
  • Failed
    The object was active but has failed.
  • Quiescing
    The object is preparing for normal deactivation. It is operating normally but will not accept any new users.
  • Waiting For Parent
    The object cannot be used because its parent object is not yet active.
  • Parent Failed
    The object cannot be used because its parent object has failed.