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Issue 6
Equipment Name
The Central Office Caller ID ETU detects Caller ID signals from the
central office and sends caller identification to the MBD-U10 Unit.
Electrical fuses (posistors) are built into this ETU.
This unit provides loop start DTMF trunks only and supports four
outside (CO/PBX) lines.
detection, holding, and dialing.
This ETU is installed in slot S3 or S4 in the B48-U10 KSU (S7000 or
COID(4)-U( ) ETU
lower).
For COID mode (S8000 or higher): Caller ID trunks can be
installed in slots S3~S6.
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.
The Central Office Caller ID ETU detects Caller ID signals from the
central office and sends caller identification to the MBD-U10 Unit.
Electrical fuses (posistors) are built into this ETU.
This unit provides loop start DTMF trunks only and supports eight
outside (CO/PBX) lines. The unit provides circuitry for ring
detection, holding, and dialing.
This ETU is installed in slots S3 or S4 in the B48-U10 KSU (S7000
COID(8)-U( )ETU
or lower).
For COID mode (S8000 or higher): Caller ID trunks can be
installed in slots S3~S6.
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.
The Direct Inward Dialing Interface Unit supports up to four DID or
four 2-way DID lines. Each DID(4)-U( ) ETU requires one interface
slot position in the KSU.
DID(4)-U( ) ETU
This ETU is installed in slots S3~S6 in the B48-U10 KSU.
The maximum number depends on other Trunk cards installed.
These ETUs share the total number of CO/PBX lines in the system.
1 - 8
Description
The unit provides circuitry for ring
Immediate, wink start, second dial tone, and delay start
signaling can be combined on this ETU.
Electra Elite
KSU Maximum
Quantities
2 ETUs
8 CO (Class) lines
2 ETUs
16 CO (Class) lines
4 ETUs
16 DID Trunks
Introduction
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