Hardware manual

Electra Elite Issue 8
System Hardware Manual 1 - 7
COI(8)-U( ) ETU
Electrical fuses (posistors) are built into this ETU.
This ETU 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-U10 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.
7 ETUs
56
CO/PBX
lines
8 ETUs
64
CO/PBX
lines
8 ETUs
64
CO/PBX
lines
COIB(4)-U10 ETU
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.
When the ETU is set for COI mode, Loop Start or
Ground Start is supported. 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 E911CAMA trunk.
The maximum number depends on other Trunk
cards installed.
COID mode: Caller ID trunks must be
installed in slots 1~4 in basic or first
expansion KSU (S7000 or lower). S8000
or higher has no slot limitations.
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.
COI Mode
7 ETUs
28 CO/PBX
Lines
COID mode
4 ETUs
16 CO
(Class) lines
COI Mode
15 ETUs
60 CO/PBX
Lines
COID mode
8 ETUs
32 CO
(Class) lines
COI Mode
16 ETUs
64 CO/PBX
Lines
COID mode
8 ETUs
32 CO
(Class) lines
Equipment Name Description Basic KSU
Basic + 1
Expansion
KSU
Basic + 2
Expansion
KSUs