Technical data

Overview
EN4442EN00EN_0002
© 2007 Siemens AG
Siemens
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1.8 Number of B Channels Dependent On Enabled Features
The following two tables provide an overview of the number of available B channels that are
dependent on enabled features.
1.8.1 STMI2 (Q2316-X10) / NCUI2+ (Q2305-X40)
1.8.2 STMI4 (Q2324-X510) / NCUI4 (Q2324-X10)
STMI2 (Q2316-X10) / NCUI2+ (Q2305-X40) Maximum number of
parallel B channels
Plain + SRTP + QDC + DMC 60
Plain + SRTP + DMC 60
Plain + QDC + DMC 85
Plain + DMC 90
Table 1-5 Maximum number of B channels dependent on the features enabled on STMI2
(Q2316-X10) and NCUI2+ (Q2305-X40)
STMI4 (Q2324-X510) / NCUI4 (Q2324-X10) Maximum number of
parallel channels
Plain + SRTP + QDC + DMC 100
Plain + SRTP+ QDC 120
Plain + DMC 100
Table 1-6 Maximum number of B channels dependent on the features enabled on STMI4
(Q2324-X510) and NCUI4 (Q2324-X10)
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In the case of V4 boards (i.e. STMI4 and NCUI4), the number of channels is solely
dependent on the DMC. No other features have an impact on the number of available
B channels.
In other words,
● all feature combinations without DMC: 120 B channels
● all feature combinations with DMC: 100 B channels