RAD Data comm TDMoIP Gateway IPmux-16 - Manual (Page 23)

IPmux-16 Installation and Operation Manual Chapter 1 Introduction
Functional Description 1-15
End-to-End Alarm Generation
An end-to-end alarm generation mechanism exists in the IPmux-16 to facilitate the
following alarms:
Unframed
AIS will be transmitted toward the near-end PBX in event of:
• Far-end LOS, AIS
• PDVT underflow/overflow.
Framed Timeslot / CAS configurable alarm pattern will be transmitted
toward the near-end PBX in event of:
• Far-end LOS, LOF, AIS
• PDVT underflow/overflow.
Throughput Limitations and CAC
Ethernet port throughput of IPmux-16 is limited to a number (pps) that is smaller
than the number (pps) that should be transmitted when all 16 E1/T1 channels are
active with 48 bytes per frame. To prevent configurations that will exceed this
limit, a CAC mechanism exists and will prevent adding connections as soon as the
limit is exceeded. The mechanism also monitors and displays current system
performance optimization (percentage of budget in use).
Table 1-5. System Usage for TDM Bytes per Frame
TDM Bytes/Frame System Resources Consumption per Timeslot
48 0.39%
96 0.2145%
144 0.1521%
192 0.1209%
240 0.1014%
288 0.0897%
336 0.0858%
384 0.078%