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7.4. LOCAL HIGHWAY INTERFACE FUNCTION
This card has the local highway in the speed of 2.048Mbps and local TSW (ASIC (IC2) internal
module) to switch from the call channel (Bch) extracted from T1 line by the T1-IC (IC302), to
H.100 interface.
As the switching function inside the DSP (IC303) is used for the in-band signaling detection by
the DSP (IC303), there is no assignment directly on the local highway map, but the operation is
synchronized with the local highway in timing.
Fig 5.6 shows the Bch Highway Assignment and the Input/Output Timings of the ASIC (IC2), the
T1-IC (IC302) and the DSP (IC303).
See the ASIC (IC2) Specification, the T1-IC (IC302) Data Sheet and the DSP (IC303) Data Sheet
for the details.
Fig 5.6 Shows the Bch Highway Assignment and the Input/Output Timings of the ASIC (IC2), the
T1-IC (IC302) and the DSP (IC303)
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