User Manual

Chapter 1 ● Introducing the IP-Radio Node 8000
32 Release 2.0, 910056 Rev01d
Understanding the backhaul punch block and switch
Backhaul links connect the IP-RN 8000 to an IP-RNC 8500 and carry user traffic and management traffic.
There are two components to the backhaul system on the IP-RN 8000:
• Backhaul punch block — a wiring punch block used to physically connect T1/E1 or Ethernet links to
the IP-RN 8000
• Backhaul switch — an internal switch module that provides surge protection and connects the backhaul
punch block (and backhaul links) to the primary and optional redundant BIO/SC modules.
For more information, see Understanding the backhaul switch
on page 33.
Understanding the backhaul punch block
The backhaul punch block is a standard type 66-block and provides hardware for connecting T1/E1 or
Ethernet lines for the backhaul network. The backhaul punch block is behind an access panel on the chassis
front that covers both the backhaul punch block and the alarm punch block.
See Chapter 5,
Connecting the backhaul.
Figure 17 Backhaul punch block
Backhaul punch block