Selecting Pcm Conversion - Zhone IMACS 8000 User Manual

System Configuration and Operation
CNV
The Conversion (CNV) parameter allows you to request that PCM companding and signaling
conversion be performed on this cross-connect circuit. Since these conversions only apply to
voice circuits, if the TYPE selected is d (data), then the only acceptable value here is n/a.
Similarly, if the TYPE selected is v (voice without signaling), the system will only allow users
to request PCM companding conversion. If the TYPE is v&s (voice with signaling), then users
can select any combination of companding and/or signaling conversion.
If the TYPE is v or v&s, the system will first ask users to "Select PCM CONV:" for defining
the type of companding conversion users require (see Figure 5-50). The options are no
companding conversion (none), convert the incoming A-mu (A-law signal to mu-law) and
convert the incoming mu-A (mu-law signal to A-law).
If the TYPE is v&s, the system will prompt users to "Select SIG CONV:" for selecting the
type of signaling conversion needed (see Figure 5-51). The option none (default signaling
conversion) is where a bit pattern of "0000" will automatically be converted to "0001" in the
T1-to-CEPT E1 direction.
The ANSI-CCITT setting will convert the incoming ANSI signaling to CCITT signaling.
Conversely, the CCITT-ANSI setting will convert the incoming CCITT signaling to ANSI
signaling. These two options are complementary (i.e., if either is selected in one direction, the
other is automatically selected for the reverse direction).
Reference Guide
Figure 5-50.Selecting PCM Conversion
Cross-Connecting WAN Time Slots
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