Hardware Technical Reference Manual
The Analog Services Unit II front panel contains:
• Alarm, activity, and power LEDs
• One CIM port for connecting to the Controller.
.
The Analog Services Unit II rear panel contains:
• Power supply and fan
• Two slots for analog line cards (see page 42)
• Protective ground for grounding the chassis.
Analog Services Unit
The ASU is the On-Premise Station (ONS) line unit. It supports up to 24 ONS phones. The unit
does not support LS trunks, Music on Hold, or Loudspeaker paging.
Custom Local Access Signaling Services (CLASS) allows the 3300 ICP system to pass Calling
Line ID digits and CLASS name information to ONS display sets that support Caller ID
functionality.
CLASS trunks are not supported on the ASU.
The Analog Services Unit front panel provides
• 24 ONS circuit status LEDs
• One CIM port for connecting to the Controller
• CIM status LEDs.
Figure 27: Analog Services Unit II Rear Panel
Figure 28: Analog Services Unit Front Panel
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