Utp Cable For Primary (I.431 Or I.431-A) - Hitachi GR2000 Series Installation Manual

DSU
Note: This connection requires costs for extra connection work and modular rosette in addition to those
for ordinary cabling and DSU setup. For details of the connection work, consult the carrier (e.g., NTT) .
Figure 3-89 Connection to Device without Terminator
3.10.2.2

UTP Cable for Primary (I.431 or I.431-a)

For connection to the Primary (I.431 or I.431-a) interface, a UTP Category 3, 4, or 5
cable shown in Figure 3-90 is required. Figure 3-91 shows an example of indirect
connection between the router and the DSU via a modular rosette on this interface.
For indirect connection to DSU via modular rosette
Modular rosette
without terminator
Flat metal cable (4-wire)
UTP category 3/4/5, 4-core, twisted-wire, straight
Modular rosette
Device without
with terminator
terminator