Patton electronic Model 1058 - Manual (Page 6)

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Figure 1. Typical application
The 1058DV/CO and 1058DV/CP work together to create a transparent
extension between two peered Ethernet LANs. POTS/ISDN calls can be
made over the VDSL link without interfering with the data. Figure 1 shows
a typical point-to-point application.