NEC Electra Elite 48/192 - T1 Connection

Features and Specifications Manual T - 1
T1 Connection
T-1
FEATURE
DESCRIPTION
T1 Connection allows the system to be connected directly to FT1 carrier links
using a public or private network. The Digital Trunk Interface, DTI-U10/20
ETU, provides for different types of trunk signaling with FT1 carrier links using
System Programming. The DTI-U10/20 ETU supports Loop Start/Ground
Start, Tie line/DID trunks.
System Software S3000 or higher is required for the DTI-U10 ETU to
support Feature Group D incoming only signaling.
System Software S4500 or higher is required for the DTI-U20 ETU to
support Feature Group D incoming MF/outgoing DTMF signaling.
SYSTEM
AVAILABILITY
Terminal Type:
All Multiline Terminals
Required Components:
DTI-U10/20 ETU
Phase Lock Oscillator, CLKG-U10 Unit: Piggybacked on either the
CPUB( )-U10 ETU for the Electra Elite 192 system or on the MBD-U10 Unit in
the B48-U10 KSU for Electra Elite 48 system, for network synchronization
Locally provided CSU (Channel Service Unit) must be installed
OPERATING
PROCEDURES
SERVICE
CONDITIONS
Data Assignment:
 Use Memory Block 1-8-33 (Master Clock Selection) to assign the source
for system clocking synchronization.
 Use Memory Block 1-11-00 (T1 Signal Format Selection) to specify T1
Signal format. Default is 12 (SF).
Same as Analog Trunk Operations.