- Equipment protection via redundant (1:1) modules
- Timing derived from Optical Multiplexer Module (OMM)
- Can provide system timing
- DS1 timing is passed through transparently
- STS-1 path protection
- AMI and B8ZS encoding
- DS1 in-band and DS3 FEAC loopback code detection
- Hot swap capability
- Optional Auto In-Service Timer
- Centrally managed by the System Controller Module (SCM)
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Requires System Release 4.0 or higher
- Multiplexes/demultiplexes one STS-1 into 28 DSX-1 M13-mapped circuits using the signal from the backplane of the OPTI-6100 chassis
- Circuits are made available through the champ connectors on the back panel of the OPTI-6100 chassis and are usually routed to a DSX panel
