i have STM-1 card STM-1 Port Adapter (PA-MC-STM-1) on router cisco 7206 & i need to divide it according to the following:

1-one PVC that carry 40Mbps net(without framing).

2-another PVC that carry 40Mbps net(without framing).

3-the third PVC will carry the remaining BW of the STM-1

Note:when searching in the configuration guide i found that :

RTR(config-controller)#aug mapping au-3

& au-3 contain 21 TU-12s each with 2Mbps

so the net is 42 Mbps , which i neeed,but is the 42Mbps is net traffic(i mean is this without header?)because i need 40Mbps net,so could any one provide me a sample configuration of the scenario needed?