Universal Analog Services Unit - Mitel 3300 ICP Hardware Technical Reference Manual

C 3
HAPTER
CIM status LEDs.
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The Analog Services Unit rear panel provides
Female 25-pair Amphenol trunk/line connector (ONS Tip/Ring or A/B circuits)
•
Protective ground for grounding the chassis
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Input power connector (standard male IEC320 AC).
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Universal Analog Services Unit

The Universal ASU is a combination unit that supports:
16 On-Premise Station (ONS) Lines for analog phones
•
Four Loop Start (LS) trunks for analog connection to a central office
•
Four Music On Hold ports (only one is software-supported) for connecting a MOH device
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Two Paging ports for connecting a loudspeaker paging unit
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Four System Fail Transfer (SFT) relays that provide direct connection between an analog telephone
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and a Loop Start trunk in the event of a system or power failure.
:
NOTE
CLASS trunks are not supported on the Universal ASU.
1.
Custom Local Access Signaling Services (CLASS) allows the 3300 ICP system to pass Calling Line
2.
ID digits and CLASS name information to ONS display sets that support Caller ID functionality.
The Universal Analog Services Unit front panel contains:
16 ONS circuit status LEDs
•
Four loop start status LEDs
•
Analog Services Unit Rear Panel
Figure 3.4:
Universal Analog Services Unit Front Panel
Figure 3.5:
A S U
NALOG ERVICES
S U G
ERVICES NITS AND ATEWAYS
NITS
45