Electra Elite IPK
Document Revision 4
General Description Manual
3 - 9
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COI(8)-U( ) ETU
8-port CO/PBX Line Interface
Electrical fuses (posistors) are built into
this ETU that supports eight outside
(CO/PBX) lines and provides circuitry for
ring detection, holding, and dialing.
The outside lines can be any
combination of Loop Start or Ground
Start DTMF trunks.
This ETU is installed in slots S1~S8 in
the basic or expansion B64-U20 KSU.
This ETU can provide an E911 CAMA
trunk.
The maximum number depends on other
trunk cards installed. This ETU shares
the total number of CO/PBX lines in the
system.
2
8
Note 1
COIB(4)-U( ) ETU
4-port COI or COID (CO/PBX) Line
Interface
This ETU can function the same as the
COI(4)-U( ) or COID(4)-U( ) ETU to
provide Central Office interface. When
ETU is set for COID mode, Loop Start
trunks and/or Caller ID trunks are
supported. The COIB(4)-U20 supports
loop start only. When the ETU is set for
COI mode, Loop Start or Ground Start is
supported using COIB(4)-U10. Caller ID
is not supported in COI mode.
Connections for Ground Start trunks are
polarity sensitive.
Only DTMF signaling is supported.
This ETU can provide an E911 CAMA
trunk.
COID mode: Caller ID trunks must be
installed in slots 1~4.
This ETU shares the total number of
CO/PBX lines in the system.
Tip and Ring electrical fuses are
provided to comply with UL 1459
requirements.
4
14
Note 1
Table 3-2 Maximum System Capacities for Trunk Interface ETUs (Continued)
Trunk Interface
ETUs
Description
Maximum Capacities
Notes
Basic Port
Package
Expanded
Port Package
Summary of Contents for ElectraElite IPK
Page 2: ...GENERAL DESCRIPTION MANUAL INT 1024 IPK Document Revision 4 Release 4000 4500...
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Page 8: ...Regulatory Information...
Page 25: ...Chapter 1 Introduction...
Page 54: ...Chapter 2 Features...
Page 103: ...Chapter 3 Equipment...
Page 124: ...Chapter 4 Installation Programming and Maintenance Overview...
Page 129: ...Chapter 5 Hardware Specifications...
Page 150: ...GENERAL DESCRIPTION MANUAL NEC Unified Solutions Inc Document Revision 4 Release 4000 4500...
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