AT&T Technical Reference 54079 (September 1999)
TR 54079, September 1999
AT&T Private Line Service OC-192 Service Description and
Interface Specification
Scope
This Technical Reference provides Network Interface (NI) and Point of
Interface (POI) Specifications for the AT&T Private Line OC-192 (Optical
Carrier Level 192) Service. The document includes a description of the service,
technical parameters, physical interface requirements, logical interface
requirements, and other necessary criteria for connecting Customer Premises
Equipment (CPE) and/or access to AT&T OC-192 circuits to obtain the
performance characteristics identified herein. OC-192 service features optical
interfaces at the NI and the POI.
Organization
Section 1 – Provides the purpose and organization of this
document.
Section 2 – Provides an overview description of the
AT&T Private Line OC-192 Service.
Section 3 – Provides availability and error performance
parameters.
Section 4 – Provides interface specifications.
Section 5 – Provides synchronization and timing
specifications.
Section 6 – Provides network alarm and status
conditions.
Section 7 – Provides customer premises equipment
characteristics.
Section 8 – Provides testing and maintenance
requirements.
Section 9 – Provides references to related documents.
Services
The AT&T Private Line Service (APLS) OC-192 Inter-Office Channel (IOC)
Service is a service that provides dedicated point-to-point 9953.28 Megabits
per second (Mbps), or 10 Gigabits per second (Gbps), line rate digital service
for STS-192/192c (Synchronous Transport Signal Level 192/192 concatenated)
signals. A point-to-point service is defined as a two-way service where traffic
originates (or terminates) in one location and terminates (or originates) in
the other. Besides STS-192c signals, the OC-192 IOC may be comprised of STS-1
(Synchronous Transport Signal Level 1), and/or STS-3c (Synchronous Transport
Signal Level 3 concatenated), and/or STS-12c (Synchronous Transport Signal
Level 12 concatenated) and/or STS-48c (Synchronous Transport Signal Level 48
concatenated) tributary signals or combinations of these tributary signals as
required per customer application. The differences between the line rates and
effective customer payloads are due to bits reserved for SONET overhead
signaling. OC-192 service features optical interfaces at the NI and the
POI.
ISDN Vendor testing program is currently suspended