Table 3.6 T series transmission hierarchy
Line Type
Data rate (Mbps)
Nubmer of T1-type lines
T1
1.544
1
T1C
3.152
2
T2
6.312
4
T3
44.736
28
T4
274.176
168
Source: Held, Gilbret.
Data Communications Networking Devices,
Chichester (UK): John Wiley, 1986.