HP ProCurve 7000dl Series User Manual

4-7
Configuring E1 and T1 Interfaces
Overview of E1 and T1 WAN Connections
Figure 4-3. Router Connects Directly to an External CSU/DSU.
If your public carrier does not provide the DSU, the router must include a built-
in DSU. You will then use UTP cable with RJ-48C connectors to connect the
router to the external CSU. (See Figure 4-4.)
Figure 4-4. Router with a Built-in DSU Connects Directly to the External CSU.
If your public carrier does not provide the CSU/DSU, the router must include
a built-in CSU/DSU. In this case, the public carrier provides a wall jack on your
premises to connect your router to the local loop, and you use UTP cable with
RJ-48C connectors to connect the router to the wall jack. (See Figure 4-5.)
Wire span
Router (DTE)
Demarc
CSU/
DSU
Network
Interface Unit
(Smart Jack)
Public
Carrier’s CO
Repeater
OCU
Office Channel Unit
(public carrier’s CSU)
LAN
Wire span
Router w/
internal DSU
Demarc
CSU
Network
Interface Unit
(Smart Jack)
Public
Carrier’s CO
Repeater
OCU
Office Channel Unit
(Public carrier’s CSU)
LAN
UTP cable with
RJ-48C connectors

HP ProCurve 7000dl Series Specifications

General

Brand	HP
Model	ProCurve 7000dl Series
Category	Network Router
Language	English