NEC Electra Elite IPK II System Hardware Manual page 48

Document Revision 3
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Table 3-3 Maximum System Capacities for Trunk Interface ETUs (Continued)
Trunk Interface
ETUs
DID(4)-U( ) ETU
DTI-U40 ETU for
DTI Function
DTI-U40 ETU for
PRI Function
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3 - 14
Description
This 4-Port Direct Inward Dialing
Interface supports four DID or four
two-way DID lines. Each ETU requires
one interface slot in the KSU.
Immediate, wink start, second dial
tone, and delay dial signaling can be
combined on this ETU.
This ETU is installed in slots S1~S8 in
any B64-U20 KSU. The maximum
number depends on other trunk ETUs
installed. This ETU shares the total
number of CO/PBX lines in the system.
This T1/FT1 Trunk Interface or
ISDN-Primary Rate digital trunk
terminates Fractional T1 trunks (Up to
24 DS-0 channels). This ETU
supports K-CCIS, ANI/DNIS trunks,
and CSU less function on T1. A
combination of ground start and loop
start signaling can be used on the
DTI-U40 ETU. Dial pulse dialing,
DTMF, Tie Line (E&M), and DID are
supported. This ETU has 24 built-in
DTMF detectors. Trunks are assigned
in groups of four.
When channels are assigned to ANI,
Feature Group D is supported.
Feature Group D incoming MF/
outgoing DTMF signaling and K-CCIS
signaling with point-to-point E&M Tie
lines are also supported.
This ETU is installed in slots S1~S8 in
any B64-U20 KSU. The maximum
number depends on other trunk ETUs
installed. This ETU shares the total
number of CO/PBX lines in the system.
Maximum Capacities
Basic Port Expanded
Package Port Package
14 23
2 11
System Specifications
Electra Elite IPK II
Notes
Notes 1,4
Notes 1, 5, 7.