Electra Elite IPK II Document Revision 1
Universal Slots 2 - 893
COI(4)-U( ) ETU This 4-Port CO/PBX Line Interface has
built-in fuses (posistors), supports four
outside (CO/PBX) lines, and provides
circuitry for ring detection, holding and
dialing. The outside lines must be Loop
Start DTMF trunks. This ETU is
installed in slots S1~S8 in the basic or
expansion B64-U20 KSU. The
maximum number depends on other
trunk ETUs installed. This ETU can
provide an E911 CAMA trunk.
This ETU shares the total number of
CO/PBX lines in the system.
14 23 Note 1
COI(8)-U( ) ETU This 8-Port CO/PBX Line Interface has
built-in fuses (posistors), supports
eight outside (CO/PBX) lines, and
provides circuitry for ring detection,
holding and dialing. The outside lines
must be Ground Start DTMF trunks.
This ETU is installed in slots S1~S8 in
the basic or expansion B64-U20 KSU.
The maximum number depends on
other trunk ETUs installed. This ETU
can provide an E911 CAMA trunk.
This ETU shares the total number of
CO/PBX lines in the system.
7 23 Note 1
Table 2-28 Maximum System Capacities for Trunk Interface ETUs (Continued)
Trunk Interface
ETUs
Description
Maximum Capacities
Notes
Basic Port
Package
Expanded
Port Package
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