AT&T 76450 User Manual
Page 33
Common Systems Connection Standards AT&T Services, Inc
Date: June 2013
ATT-TP-76450, Issue 15
Copyright
©
2013, AT&T . All Rights Reserved.
Page 33
Yes, please explain the synchronization requirements or
direct the AT&T Common Systems sync SME to
supplier documentation submitted in support of this
review.
3.3.1
Questions 3.3.1 through 3.3.4 apply to a DUC that
utilizes a PTP client for the timing solution. Note that
the use of PTP may vary depending on the location of
the DUC in a CO, MTSO, vs. a remote terminal or base
station. Does the DUC, as deployed in AT&T, require
PTP for a timing solution? Respond Yes or No. If
response is yes, please proceed to 3.3.2. If response is
NO, please skip to section 3.4.
yes n/a
3.3.2
Is the PTP client in the DUC compliant to the current
version of the ITU-T PTP Telecom Profile? Respond
Yes or No
yes n/a
3.3.3
Please describe in the notes the level of precision required at
the PTP timed DUC in parts per million for frequency, and/or
time/phase accuracy for time of day or phase requirements.
yes n/a
3.3.4
Is the PTP client in the DUC compatible with IPv6?
yes n/a
3.4.1
Questions 3.4.1 through 3.4.3 apply to a DUC that utilizes a
NTP client for the timing solution. Does the DUC require
NTP to deliver a frequency reference to the DUC or
downstream connected network elements? Respond Yes or
No
.
yes n/a
3.4.2
What is the frequency, time, and/or phase accuracy
required? Please respond in the notes.
yes n/a
3.4.3
Is the NTP source for this DUC and associated platform
specific to the platform, meaning a dedicated GPS
antenna and receiver are required as the NTP source?
Respond Yes or No. If the response is Yes, please
explain the NTP source or direct the AT&T Common
Systems sync SME to supplier documentation
submitted in support of this review.
yes n/a
4 ALARMS
4.1
Equipment surveillance is performed at two levels,
remote surveillance and local surveillance
n/a
yes
4.2
Local and Telemetry Alarms
n/a
n/a
4.3
Separation of Local Alarms
n/a
n/a
4.4
Audible Alarm Cut-off (ACO)
n/a
n/a
4.5
Telemetry Alarm Protocols
(Meets one of the listed protocols)
n/a
yes
4.6
Alarm Interconnection
n/a
yes
4.7
Discrete Alarm Rating
n/a
yes
4.8
Normally open and normally closed alarm outputs (Form
“C” alarm relats are preferred
n/a
yes
4.9
Discrete Alarm Paired Leads
n/a
yes
4.10
Discrete Alarm Dry Contacts
n/a
yes
4.11
Housekeeping/Overhead Alarm Inputs
n/a
yes