Specifications

TN760E tie trunk (4-wire, 4 ports)
Issue 6 February 2007 233
TN760E tie trunk (4-wire, 4 ports)
The TN760 tie trunk circuit pack has four ports. These ports are used for Type 1 or Type 5
4-wire E & M lead signaling tie trunks. Trunk types include automatic, immediate-start,
wink-start, and delay-dial. Each port on a TN760 circuit pack has the following signaling leads:
● T
● R
● T1
● R1
● E
● M.
The TN760 circuit pack provides release link trunks that are required for the Centralized
Attendant Service (CAS) feature and has administrable A- and Mu-Law companding. The
TN760 circuit pack supports outgoing, Multilevel Precedence and Preemption (MLPP).
Option switches on each TN760 circuit pack port can select the following connections:
● Type 1 E & M standard unprotected format,
● Type 1 E & M compatible unprotected format,
● Type 1 E & M compatible protected format, and
● Type 5 simplex format
For Belgium, the Slovak Republic, the Commonwealth of Independent States, and the
Netherlands, vintage 11 or greater is required.
TN762B hybrid line (8 ports)
The TN762B hybrid line circuit pack has eight ports that connect to multiappearance hybrid
analog and digital telephones. The TN762B can connect to 7300-series telephones, an
MDC-9000 cordless telephones, and an MDW-9000 cordless telephone with separate base
station and charging stations.
Each port on a TN762B circuit pack has VT and VR (analog voice), CT, CR, P-, and P+ signal
leads. P+ signal leads are digital signals that control terminals.
Note:
Note: This circuit pack is not used in a G650 Media Gateway.