GatesAir Intraplex T1 DCS-9500 CrossConnect System, Инструкция по установке и эксплуатации

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T1 CrossConnect Installation & Operation Manual 4 – Mapping Basics
Version 2
4-8 GatesAir
Intraplex Products
Figure 4-7. IntraGuide Map for Point-to-multipoint Configuration
4.7 Interchange Configuration Mapping
4.7.1 Simple Interchange
This simple interchange example shows how telephone circuits from four remote locations can be
combined into a single T1 for delivery to a telephone switch or PBX at port 1. Although it may look like
the point-to-multipoint example at first, a different signal goes to each location, and the transmission
is duplex (Figure 4-8).
Figure 4-8. Simple Interchange Configuration
Suppose that port 1 is located at a station that has four live channels for telephone circuits so that it
can take calls from four substations. The station has reserved time slots 19, 20, 21, and 22 on port 1
for this. Ports 2 through 5 at the substations have each reserved time slot 24 as a line for phone calls.
The map for the simple interchange configuration (Table 4-6) has bold entries that emphasize
●
In time slot 19, port 1 receives signals from time slot 24 of port 2; and in time slot 24, port 2
receives signals from port 1 time slot 19.