<page_title> E-carrier </page_title> <section_title> E3: multiplexing level 3: 34 Mbit/s </section_title> <table> <cell> IV <col_header> Group </col_header> <col_header> I </col_header> <col_header> II </col_header> <col_header> III </col_header> </cell> <cell> J1 | J2 | J3 | J4 <col_header> Bits </col_header> <row_header> IV </row_header> </cell> <cell> R1 | R2 | R3 | R4 <col_header> Bits </col_header> <row_header> IV </row_header> </cell> <cell> 376 Tributary Bits <col_header> Bits </col_header> <row_header> IV </row_header> </cell> </table>
In the E-carrier, the Group IV contains four J-bits, R-bits and 376 T-bits.