Verilink IMUX (880-503137-001) Product Manual - Manual (Page 10)

Overview
1-2 Verilink IMUX User Manual
Applications
The IMUX can be used with multiple AS3000 application modules.
When the IMUX is combined with a QUAD T1, multiple T1 ports can
be mapped to the same IMUX data port, up to a total of eight (8) T1s
on two (2) QUAD T1 modules.
When multiple IMUXs are used with an M1-3, synchronous serial
data (for example, routers and video applications), is sent across
multiple T1s in the shelf midplane which the M1-3 multiplexes into
a T3 or fractional T3 service carrier.
Figure 1-1 IMUX and M1-3 Application