User's Manual

260-668066-003 Rev 001 August 2010 3-7
Eclipse Installation Manual
DAC 1x155o
DAC 1x155o supports one OC3 single-mode optical tributary on SC connectors.
Figure 3-12. DAC 1x155o
DAC 2x155o
DAC 2x155o supports two OC3 single-mode optical tributaries on SC connectors.
Figure 3-13. DAC 2x155o
DAC 155oM
DAC 155oM multiplexes an OC3 optical tributary to an NxDS1 backplane. The user
interface is provided on an SFP optical transceiver. Different SFPs support 1310nm
single or multi-mode, or 850nm multi-mode.
It functions as a terminal multiplexer; it terminates or originates the OC3 frame. It does
not support interconnection of ADMs as there is no provision to transport OC3
overheads for ADM to ADM synchronization.
In virtual tributary mode it transports up to 130 Mbit/s Ethernet over an OC3 link.
Options are provided for external/recovered, or internal clock sourcing.
Figure 3-14. DAC 155oM
AUX
AUX provides synchronous and/or asynchronous auxiliary data channels, NMS
porting, and alarm input and output functions. Data options are sync at 64 kbps or
async to 19.2 kbps.
Figure 3-15.