ADTRAN Total Access OC-3 L3, Установка и эксплуатация

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MUX Service States
The OC-3 MUX Service States are as follows:
Out of Service, Unassigned
This is the factory default state of the unit. In this state,
the system disregards the card provisioning and the card
provides unequipped payloads to the transmit OC-3
signal, replaces DS3 payload with DS3 AIS on the two
transmit DS3 signals and also sends DS1 AIS to the
access modules. In this state, the system will not
generate any alarms and the user can make provisioning
changes, activate test modes, and download software.
Once the MUX is restored to the “Out of Service,
Maintenance” or the “In Service” state, all previous
provisioning and individual path level service states are
restored. However, any mapping or provisioning
changes made while in this state supersede the previous
provisioning.
Out of Service, Maintenance
In this state, the user can make provisioning changes,
activate test modes, and download software. The OC-3
MUX does provide data service in this mode. No alarms
except loopback condition alarms will be generated
during this time; however, alarms generated during “In
Service” state will be cleared if the respective alarm
conditions are cleared on the MUX. Once the MUX is
restored to the “In Service” state, all previous provi-
sioning and individual path-level service states are
restored. However, any mapping or provisioning
changes made while in this state supersede the previous
provisioning.
In Service
In this state, data services and alarm reporting are
available. The user can download software, but provi-
sioning and activation of test modes are NOT allowed.
The service states of individual paths are independently
controlled and may not be in service.
Linked Provisioning
When enabled, any provisioning changes made to one
unit while in a dual configuration will automatically be
reflected in the other unit.
WARNING
When Linked Provisioning is enabled, changes
made to one card may potentially affect traffic
on the other card, even though the other card is
in the “In Service” state.
Clock Source
Selects the source of timing for the OC-3 and DS3
transmit clock, also referred to as TX Clock Source. The
following options are available:
Receive OC-3 from Both A & B Fibers
This option indicates that timing is derived from the
receive OC-3 data.
Receive OC-3 From Fiber A
This option indicates that timing is derived from the
receive OC-3 data.
Receive OC-3 From Fiber B
This option indicates that timing is derived from the
receive OC-3 data.
Free Run
This option indicates that timing is derived from an
onboard oscillator.
External DS1 SF or ESF From Both Inputs
This option indicates that timing is derived from an
externally connected DS1 BITS SF or ESF timing
source. ESF synchronization status messages are not
received with this option.
External DS1 SF or ESF From Primary Input
This option indicates that timing is derived from an
externally connected DS1 BITS SF or ESF timing
source. ESF synchronization status messages are not
received with this option.
External DS1 SF or ESF From Secondary Input
This option indicates that timing is derived from an
externally connected DS1 BITS SF or ESF timing
source. ESF synchronization status messages are not
received with this option.
External DS1 ESF With Sync Messages From Both
Inputs
This option indicates timing is derived from an exter-
nally connected DS1 BITS ESF framed all ones timing
source, which provides synchronization status
messages.
External DS1 ESF With Sync Messages From Primary
Input
This option indicates timing is derived from an exter-
nally connected DS1 BITS ESF framed all ones timing
source, which provides synchronization status
messages.
External DS1 ESF With Sync Messages From
Secondary Input
This option indicates timing is derived from an exter-
nally connected DS1 BITS ESF framed all ones timing