2 • Physical layer configuration Models 3224 G.SHDSL IpDSLAM & 6081RC NAS Applications Guide12 Configuring Model 6081RC H.110 parameters– Enabled – Click on the check box to enable this port (port 3)3. If you wish to disable any G.SHDSL ports that you don’t intend to use, click the Enable check-box corre-sponding to the ports you wish to disable in order to remove the check-mark and disable that port.4. Scroll to the bottom of the page and click the Submit button to implement and save your changes. Thiscompletes the instructions for configuring Ethernet bridging applications.Configuring Model 6081RC H.110 parametersThe Model 6081RC card routes/bridges data from H.110 and Ethernet ports. The 6081RC connect to theForeFront chassis H.110 bus via mating mid-plane connectors.There are 32 H.110 ports available on the ForeFront chassis H.110 bus, Each of the function cards (i.e.,6081RC, 3096RC, 6511RC, etc.) have access to all 32 ports on the bus.Characteristics of the H.110 bus:• The H.110 bus is partitioned into 32 ports.• Each H.110 port can handle up to 128 timeslots, each timeslot is 64 kbps.• H.110 timeslots are unidirectional, for a full duplex link timeslots need to be defined for each direction oftransmission.• H.110 port numbers between two cards must match.• Direction of transmission between two cards must complement each other.Figure 6 shows an H.110 bus interconnection connection between a 6081RC and a 3096RC. Two maps arenecessary for a full duplex link; both maps must have the same number of timeslots in each direction. In addi-tion, the 6081RC H.110 port should connect to a corresponding 3096RC H.110 port. Similarly, the H.110directions between the 6081RC and the 3096RC maps should complement each other, for example timeslotsin a “to H.110” port on the 6081RC, should go to timeslots in a “from H.110” port on the 3096RC.Figure 6. H.110 port correspondence and directionDefining H.110 channelsFrom the standpoint of the 6081RC, H.110 ports and timeslot are assigned to PPP channels. To configureH.110 channels, do the following:1. Click on the H.110 link in the Configuration Menu pane (see figure 4 on page 11) to display the H.110Channel Configuration page (see figure 7).