We offer Telephone Equipment for the Office and Home
This Basic Rate Interface unit provides four channels (eight voice channels) for ISDN-Basic Rate Interface. Caller ID is supported. This ETU is installed in slots S1~S4 in the basic or first expansion B64-U10 KSU (S7000 or lower). S8000 or higher has no slot limitations. The maximum number depends on other trunk cards installed. This ETU shares the total number of CO/PBX lines in the system.
Electrical fuses (posistors) are built into this ETU. This ETU 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-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.
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.
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
This ETU can function the same as the COI(4)-U( ) or COID(4)-U( ) ETU to provide Central Office interface. This ETU has transmit and receive pad controls.. When ETU is set for COID mode, Loop Start trunks and Caller ID trunks are supported. When the ETU is set for COI mode, Loop Start is supported.
This ETU can function the same as the COI(8)-U10 or COID(8)-U10 ETU to provide Central Office interface. When ETU is set for COID mode, Loop Start trunks and Caller ID trunks are supported. When the ETU is set for COI mode, Loop Start is supported.
The Central Office Caller ID ETU detects Caller ID signals from the central office and sends caller identification to the CPUB( )-U( ) ETU. Electrical fuses (posistors) are built into this ETU That supports four outside (CO/PBX) lines and provides circuitry for ring detection, holding, and dialing. This ETU is loop start, DTMF only and is installed in slots S1~S4 in the basic or first expansion B64-U10 KSU (S7000 or lower). S8000 or higher has no slot limitations. 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 CPUB( )-U( ) ETU. Electrical fuses (posistors) are built into this ETU That supports eight outside (CO/PBX) lines and provides circuitry for ring detection, holding, and dialing. This ETU is loop start only and is installed in slots S1~S4 in the basic or first expansion B64-U10 KSU (S7000 or lower). S8000 or higher has no slot limitations. 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)-U10 ETU requires one interface slot position in the KSU.
(S7000 or lower)
(S8000 or higher)
Same as above with the following exceptions: • S8000 has no slot limitations. • Using System Software S8000 or higher, a maximum of 14 of the following 4-port trunk interface ETUs can be installed:
This IP Gateway ETU is an optional Interface that can combine trunk calls into Gateway trunks. This ETU can emulate the following ETUs: TLI(2)-U( ), DID(4)-U( ), COI(4)/(8)-U( ), or COID(4)/(8)-U( ). Refer to the applicable ETU assignment for the trunk capacity. This ETU can be installed in KSU slots that support the applicable assigned ETU. The maximum number depends on other trunk cards installed. This ETU shares the total number of CO/PBX lines in the system. When this ETU is installed, the FCE-U10 Unit is required. This ETU shares the total number of station ports in the system.
This IP Gateway ETU is an optional Interface that can combine trunk calls into Gateway trunks. This ETU can emulate the following ETUs: TLI(2)-U( ), DID(4)-U( ), COI(4)/(8)-U( ), or COID(4)/(8)-U( ). Refer to the ETU type assignment for the trunk cpacity. This ETU can be installed in KSU slots that support the applicable assigned ETU. The maximum number depends on other trunk cards installed. This ETU shares the total number of CO/PBX lines in the system. When this ETU is installed, the FCE-U10 Unit is required. This ETU shares the total number of station ports in the system.
(S7000 or lowe
The Integrated Service Digital network (ISDN)-Primary Rate Interface (PRI) is a Public Switched Telephone Network (PSTN) service that provides 23 B channels and one D channel (23B + D) for voice call trunking. The B channels provide 23 CO/DID connections. This ETU is installed in slots S1 and S4 in the basic B64-U10 KSU and slot S1 of the first expansion B64-U10 KSU. The maximum number depends on other trunk cards installed. This ETU shares the total number of Trunk lines in the system.
(S8000 or highe
Same as above with the following exceptions: • S8000 has no slot limitations. • Using System Software S8000 or higher, a maximum of 14 of the following 4-port trunk interface ETUs can be installed: COIB(4)-U( ) installed as COID(4) COID(4)-U( ) ETU DTI-U( ) installed as DTI(4) IPT(4)-U( ) installed as COID(4) or DTI(4) PRT(1)-U( ) installed as PRT(4)
COIB(4)-U( ) installed as COID(4)
The Tie Line Interface ETU supports the termination and operation of up to two E&M Tie lines (4-wire, type I and type V, and 10/20 pps Dial Pulse or DTMF).
