NEC Electra Elite 48/192 Features And Specifications Manual page 583

Issue 6
T - 2
Use Memory Block 1-11-01 (Clear Channel Selection) to specify the
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Clear channel ability (default: ZCS).
Use Memory Block 1-11-05 (T1 Channel Selection) to specify DTI
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channel numbers to be used.
Use Memory Block 1-11-06 (Signaling Selection) to specify LS
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(default) or GS signaling.
Use Memory Block 1-11-07 (DTI Trunk Type Assignment) to assign
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the DTI trunk type (default: CO) four channels at a time.
Use Memory Block 7-1 (Card Interface Slot Assignment) to specify
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the DTI-U10/20 ETU.
24 ports depending on the equipment configuration.
General:
Three DTI-U10/20 ETUs can be installed in an Electra Elite 192
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system (maximum of 64 channels can be used). One DTI-U10/20
can be installed in an Electra Elite 48 system (maximum of 16
channels can be used).
Both the analog COI and digital DTI can exist in the same Trunk
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group.
The DTI-U10/20 ETU supports Dial Pulse and DTMF signaling.
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Groups of four Loop Start/Ground Start, Tie Line, or DID channels
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are assigned.
The number of channels an FT1 provides dictates the number of
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KSU slots needed.
• 1 to 8 channel - 1 slot
• 9 to 16 channels - 2 slots
• 17 to 24 channels - 3 slots
DTI-U10/20 ETU occupies between 8 and
The
Electra Elite
T1 Connection