4RF Aprisa XE User Manual - page 166
164 | Cross Connections
Aprisa XE User Manual
T1 ESF - DMS
T1 ESF - DMS mode provides 24 timeslots to transport traffic using the G.704 24 frame Extended Super
Frame with sixteen state demultiplexed signalling using the ABCD bits each with a bit rate of 333 bit/s.
DeMultiplexed Signalling allows the cross connection of framed T1 ports to other interface ports e.g. to a
Q4EM or HSS. An additional 8 kbit/s of radio link capacity is required to transport each CAS bit over the
radio link.
The FDL (Facility Data Link) can be cross connected between the two framed T1 ports if required. This FDL
bit requires an additional 8 kbit/s of radio link capacity.
The mapping left column is used to map timeslot bits and the timeslot table right column is used to map
the CAS ABCD bits for signalling.
T1 ESF - DMS mode is used when access to the signalling bits is required, for example:
Cross connecting signalling from DFXS, DFXO or Q4EM interfaces into a 24 frame Extended Super
Framed T1 using ‘non-multiplexed’ signalling from the interface.
Drop and Insert connections between 24 frame Extended Super Framed T1s or data interfaces