NEC Electra Elite IPK II General Description Manual page 142

Document Revision 1
Table 3-2 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
3 - 10
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
Electra Elite IPK II
Notes
Notes 1,4
Notes 1, 5, 7.
Equipment