Each ISUP Circuit Group object is a child of an ISUP Remote Signaling Destination object.
This object contains configuration parameters and status information for an ISUP circuit group. A circuit group is one or a group of circuits on a DS1. Typically a circuit group is defined for each DS1. Note that a circuit group cannot include circuits from more than one DS1.
A circuit group is defined by the local exchange, the TDM port, the base timeslot and the number of circuits. Alternatively, the circuit group can be uniquely identified by the local and remote exchanges, the base CIC and the number of circuits.
For initial configuration of an ISUP Circuit Group, you need to do the following:
Object-Specific Actions | |
Validate Circuits | To run a Circuit Validation Test on the circuits in this ISUP Circuit Group, click on the Validate Circuits pushbutton. A Circuit Validation Test checks that the circuit is provisioned at the remote destination, and performs basic checking that the configuration at the two ends is consistent. You are recommended to run this test after commissioning a new Circuit Group, or after a change in the Circuit Group's configuration in the EMS or at the remote system. |
Query Group | To run a Circuit Group Query for this ISUP Circuit Group, click on the Query Group pushbutton. The NE also initiates an automatic Circuit Group Query on each circuit group once a day. |
Test Continuity | To run a Continuity Test for the circuits in this ISUP Circuit Group, click on the Test Continuity pushbutton. The number of simultaneous tests across all circuit groups to a specific remote signaling destinatination that a continuity test will be run on is set on the Maximum simultaneous continuity tests field of the ISUP Remote Signaling Destination object. If your Continuity Tests sometimes fail, this may be because the remote switch does not have enough resources to test all of the circuits simultaneously. If this happens, you should configure a limit to the number of simultaneous continuity tests. |
Reset Circuits | To reset the circuits in this ISUP Circuit Group, click on the Reset Circuits pushbutton. You cannot reset the circuits when the ISUP Circuit Group is disabled. |
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Resetting the circuits will terminate any active calls using circuits in this ISUP Circuit Group. |
Parameter |
Access |
Description |
Circuit group index | Create | A numeric index identifying the circuit group. |
Description | Change | A text string used in the EMS System Explorer to identify this circuit group. Specify a string of up to 64 characters. |
Media channel | Change Inactive | The media channel with which the circuit group is associated. Select from the displayed list of media channels. |
Base CIC | Change Inactive | CIC of the base circuit. The range of circuits in the circuit group is defined by the base CIC and the number of circuits. The minimum value is 1, and the maximum value of Base CIC + Number of circuits is 16384. Note that changing this value clears your selections in the Circuits denied to ISUP and Maintenance block all circuits fields (because it changes the configured circuit numbers). |
TDM port | Change Inactive | TDM port to which the circuit group binds. Select from the displayed list of TDM ports. Note that this list excludes any which have the Clock Reference set to BITS. |
Base timeslot | Change Inactive | Base timeslot for the circuit group. Ensure that the range of timeslots used (defined by the Base timeslot and Number of circuits parameters) does not exceed the capabilities of the underlying trunk (1-24). |
Number of circuits | Change Inactive | Specifies the number of circuits within the circuit group. The range of circuits is defined by the base circuit and the number of circuits. Ensure that the range of timeslots used (defined by the Base timeslot and Number of circuits parameters) does not exceed the capabilities of the underlying trunk (1-24). |
TDM port status | Read only | Status of the TDM port to which the circuit group binds. Values:
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Local block status | Read only | Current local blocking status of this circuit group. Values:
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Remote block status | Read only | Current remote blocking status of this circuit group. Values:
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Trunk type | Change Inactive | Type of the trunk for this circuit group. Values:
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Circuit group test result | Read only | Indicates the progress of the most recent circuit group test. This field applies only to tests that were initiated using the EMS pushbuttons, and not to tests performed automatically as specified by Outgoing calls per continuity check.
If this field indicates that the test failed on one or more circuits or could not be run, check the individual circuits for details. Values:
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Maintenance block all circuits | Change | This field allows you to block all circuits in this group for maintenance. Values:
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Requested circuits to maintenance block | Change | If the Maintenance block all circuits field is set to True, this field is not displayed. If the Maintenance block all circuits field is set to False, set one or more checkboxes to indicate which circuits in the group to block, or leave all checkboxes unset to leave all circuits unblocked. |
Maintenance blocked circuits | Read only | Indicates which circuits in the group (Base circuit - Base circuit + 31) are currently maintenance blocked. |
Circuits denied to ISUP | Change Inactive | Set one or more checkboxes to indicate which circuits in the group are unavailable to ISUP because they are reserved for other functions such as MTP2 signaling links. Each circuit is identified by both its circuit number and timeslot number. |
Last circuit group test time | Read only | If the Circuit group test result field contains the results of a test, this field shows the time at which the test took place. This field applies only to tests that were initiated using the EMS pushbuttons, and not to tests performed automatically as specified by Outgoing calls per continuity check. |
Tester send tone for Continuity Testing | Change Inactive | Specifies which tone the switch should send when acting as Tester in a Continuity Test. Unless you have strong reasons to do otherwise, you should specify the same value for this parameter on all Circuit Groups within the same Media Channel. Values:
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Tester receive tone for Continuity Testing | Change Inactive | Specifies which tone the switch expects to receive when acting as Tester in a Continuity Test. Unless you have strong reasons to do otherwise, you should specify the same value for this parameter on all Circuit Groups within the same Media Channel. Values:
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Loopback receive tone for Continuity Testing | Change Inactive | Specifies which tone the switch expects to receive when acting as Loopback in a Continuity Test. Unless you have strong reasons to do otherwise, you should specify the same value for this parameter on all Circuit Groups within the same Media Channel. Values:
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Loopback send tone for Continuity Testing | Change Inactive | Specifies which tone the switch should send when acting as Loopback in a Continuity Test. Unless you have strong reasons to do otherwise, you should specify the same value for this parameter on all Circuit Groups within the same Media Channel. Values:
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Outgoing calls per continuity check | Change | Number of outgoing calls per continuity check on each circuit in this circuit group. If this is set to N, a continuity test will be performed on one call in every N outgoing calls using a particular circuit within this circuit group. A value of zero indicates that no continuity testing is done on outgoing calls using this circuit group. The default is zero. Unless you have strong reasons to do otherwise, you should specify the same value for this parameter on all Circuit Groups within the same Media Channel. |
Deactivation mode | Change | Specifies how child objects should be deactivated when deactivating this object. Values:
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Alarm state | Read only | Specifies whether any alarms are currently raised for this object. Values:
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Alarm log correlator - Attention Required | 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. |
Alarm log correlator - Attend To Dependent | Read only | Identifier of the log message for the event that caused the last Attend To Dependent alarm state for this object. This field is reset when the Attend To Dependent 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. |
Attend To Dependent alarm events | Read only / Reset | Number of times (since the alarm count was reset) that this object's alarm state has gone to Attend To Dependent. |
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. |
Circuit Attention Required alarms | Read only | The total number of circuits in this Circuit Group that are in Attention Required state. |
Circuit Attention Required alarm events | Read only / Reset | The total number of times that the alarm state for a Circuit child object has gone to Attention Required. |
Circuit Attend To Dependent alarms | Read only | The total number of circuits in this Circuit Group that are in Attend To Dependent state. |
Circuit Attend To Dependent alarm events | Read only / Reset | The total number of times that the alarm state for a Circuit child object has gone to Attend To Dependent. |
Summary child alarm state | Read only | Summarizes the alarm status for all children of this object. Values:
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Requested status | Read only | Specifies whether an administrator has attempted to activate the ISUP Circuit Group. Values:
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Actual status | Read only | Specifies the current status of the ISUP Circuit Group. Values:
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