Technical Specifications
Issue 8.0 July 2002
10-19
OC-3 Access 10
Optical Line Interface 10
NOTE:
The protection ratio of 1+1 is not valid when two adjacent slots of an OC-3
Optical Interface are equipped with both an OC-3 (1.3 STD) LAA10 circuit
pack and an OC-3 (1.3 STD) LAA10B circuit pack. To operate in a 1+1
configuration, both adjacent slots (for example, 2A and 2B) MUST be
equipped with either the LAA10 or the LAA10B, but not a mix of the two.
The OC3 Optical Interface - 1.3 µm Standard Performance [OC3 (1.3 STD)] circuit
pack complies with the OC-3 short reach and intermediate reach optical interface
standards (TR-253). The OC3 (1.3 STD) circuit pack also supports applications
with span lengths up to 51 kilometers.
Optical Connector Interfaces 10
The OC3 (1.3 STD) circuit pack uses
ST
lightguide connectors (standard), FC/PC
lightguide connectors, or SC lightguide connectors.
Transmission Medium 10
Single-mode fiber or multimode fiber
Lightguide Jumpers 10
Single-mode or multimode lightguide jumpers
Optical Source 10
Multi-longitudinal mode (MLM) laser
Optical output.................................................. 155.52 Mb/s
Optical line code ............................................. Scrambled nonreturn to zero (NRZ)
Growth Increment ........................................... One OC-3 per circuit pack
Protection Ratio .............................................. 1+1
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