61181031L3-5A
9
OC-3 Provisioning
The OC-3 Provisioning options, shown in
Figure 6
, are
described in the following subsections.
Signal Failure Threshold
Bit Error Rate (BER) at which service is unacceptable
for a particular application. Signal Failure (SF)
Threshold is provisionable from 1x10
-3
to 1x10
-5
. If a
protection module is available (with a less severe
impairment), the traffic will switch to that module.
Signal Degradation Threshold
BER at which service is “marginal” or “degraded” for a
particular application. Signal Degradation (SD)
Threshold is provisionable from 1x10
-5
to 1x10
-9
. If a
protection module is available (with a less severe
impairment), the traffic will switch to that module.
OC-3 Transmission Sync Message
Selects whether the transmit OC-3 S1 Sync Message is
derived from the clock source or is “Don’t Use for
Synchronization.”
DS3 Provisioning
The DS3 Provisioning options include Service States
and Line Build Out for DS3 #1 and DS3 #2 and framing
type for the locally dropped DS3. The options are
shown in
Figure 7
and explained in the following
subsections.
DS3 #1 (DS3 #2) Service States
The DS3 #1 (DS3 #2) Service State options are as
follows:
Out of Service, Unassigned
This is a factory default read-only state of the DS3. In
order for a DS3 to be in this state the user must un-map
it (delete cross connect) or put OC-3 MUX service state
to 'Out of Service, Unassigned'. DS3 service state will
not be allowed to change when in this state. The system
disregards the DS3 provisioning and replaces the
payload with DS3 AIS on the transmit DS3 signal. In
this state the system will not generate any corre-
sponding DS3 alarms and the user can make LBO
changes and activate test modes.
Out of Service,Maintenance
In addition to being assigned this state from the DS3
Provisioning menu (Figure 7), the DS3 interface will go
in this state when OC-3 MUX is set to "Out of Service,
Maintenance". Data service is available, but alarms are
not reported in this state.
In Service
In this state, data service is available and alarms are
reported if OC-3 MUX Service State is not “Out of
Service, Unassigned” and the related DS3 is still
mapped.
Figure 6. OC-3 Provisioning Menu
Shelf: 1 Slot: B Total Access System 01/06/03 16:39
Unacknowledged Alarms: None
OC-3 Provisioning
1. Signal Failure Threshold : 10 E -3
2. Signal Degradation Threshold : 10 E -5
3. OC-3 Transmission Sync Message : Derive From Source
'?' - System Help Screen
Содержание Total Access OC-3 L3
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