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Digital Tie Trunk Example
Issue 1 September 1995
9-9
Digital Tie Trunk Example
Steps 1-3 of each example should have been completed in the Provisioning Plan
in Chapter 2, "Plan and Prepare the Site"
,
Step 8.
This example shows how to connect digital tie trunk wiring from one DEFINITY
System Generic 3 to another DEFINITY System Generic 3:
1. Choose a peripheral to connect (such as DS1/E1)
2. Choose the port board to use and its carrier and slot number (such as
TN464, Cabinet 1, Carrier C, Slot 06).
3. Choose a port circuit on the port board (such as Port 03).
4. Install cross-connect jumpers to connect the named pinouts from the
Digital Trunk circuit pack to like-named pinouts on the manufacturer’s or
supplier’s external digital trunk as shown in the following example. This
pinout information is taken from Table 9-8 on page 9-16 and Table 9-9
on page 9-17.
5. Set option switches on the port circuit pack (TN464 digital trunk)
according to Appendix H, "Option Switch Settings".
6. Administer on the Digital Service Level 1 (DS1) and Trunk Group
Screens of the G3 Management Terminal. See the DEFINITY G3
Implementation Guide
for more details.
The wiring designations for this example are listed in Table 9-5, and are
illustrated in Figure 9-6.
LI* Balanced Input Pair.
LO* Balanced Output Pair.
The following diagram illustrates these wiring designations.
Table 9-5. Digital Tie Trunk Wiring Designations (TN464)
External Trunk
Circuit Name TN464, Position 1C06
Name Pin Number
LI (Line In) LO (Line Out) 48
LI* (Line In) LO* (Line Out) 23
LO* (Line Out) LI* (Line In) 47
LO (Line Out) LI (Line In) 22