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Electra Elite
Equipment Name
DTI-U( ) ETU
(S7000 or lower)
DTI-U( ) ETU
(S8000 or higher)
IPT(4)-U( ) ETU
IPT(8)-U( ) ETU
System Hardware Manual
The Digital Trunk Interface ETU terminates Fractional T1 (16 DS-0
channels) lines.
This ETU contains circuitry for outside ring
detection, holding, dialing, control function, Tie line (E&M), and DID
signaling.
Only the DTI-U30 ETU supports K-CCIS common channel
signaling.
Automatic Number Indication (ANI) is supported.
A combination of Loop Start and Ground Start trunks, DID trunks, or
Tie lines can be used on the ETU. Each trunk is assigned in groups
of four. DTMF or Dial Pulse dialing is supported.
This ETU is installed in slot S4 in the B48-U10 KSU.
The maximum number depends on other Trunk cards installed.
This ETU shares the total number of CO/PBX lines.
DTI-U( ) ETU and PRT(1)-U( ) ETU cannot be used in the
same system.
A CLKG-U( ) Unit must be installed.
This ETU can installed in slots S3~S6 in the B48-U10 KSU.
This IP Gateway ETU is an optional Interface that can combine
trunk calls into Gateway trunks.
This ETU can emulate the following ETUs: TLI(2)-U( ), DID(4)-U( ),
COI(4)/(8)-U( ), or COID(4)/(8)-U( ). Refer to the applicable ETU
assignment for the trunk capacity.
This ETU can be installed in KSU slots that support the applicable
assigned ETU.
The maximum number depends on other trunk cards installed. This
ETU shares the total number of CO/PBX lines in the system.
This ETU also shares the total number of station ports in the
system.
This IP Gateway ETU is an optional Interface that can combine
trunk calls into Gateway trunks.
This ETU can emulate the following ETUs: TLI(2)-U( ), DID(4)-U( ),
COI(4)/(8)-U( ), or COID(4)/(8)-U( ). Refer to the applicable ETU
assignment for the trunk capacity.
This ETU can be installed in KSU slots that support the applicable
assigned ETU.
The maximum number depends on other trunk cards installed. This
ETU shares the total number of CO/PBX lines in the system.
This ETU also shares the total number of station ports in the
system.
Description
Issue 6
KSU Maximum
Quantities
1 ETU
16 lines
4 ETUs
16 Lines
4 ETUs
Variable
IP Gateway Trunks
16 lines
4 ETUS
Variable
IP Gateway Trunks
32 lines
1 - 9
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