Cisco 7000 Series Hardware Installation And Maintenance Manual page 216

Installing and Configuring Processor Modules
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Refer to the Router Products Configuration Guide and Router Products Command Reference
publications for a summary of the configuration options available and instructions for configuring
the MIP controller.
Configuring Jumper J6 on the E1 Port Adapter
By default, channelized E1 port adapters are set with capacitive coupling between the receive (Rx)
shield and chassis ground. This provides direct current (DC) isolation between the chassis and
external devices, as stated in the G.703 specification. Jumper J6 controls this function. To make
changes, remove the E1 port adapter from the mother board, place one of the spare jumpers on J6
pins one and two or pins two and three (refer to Table 5-11), and replace the port adapter on the
mother board. Pin 1 of J6 is designated with a square. (See Figure 5-20.)
For procedures on removing the E1 port adapter from the MIP, refer to the section "Removing and
Replacing MIP Port Adapters" in this chapter.
Figure 5-20
5-58 Cisco 7010 Hardware Installation and Maintenance
Internet protocol (IP) addresses if you will configure the interfaces for IP routing
Whether the new interface will use bridging
Location of Jumper J6 on the E1 Port Adapter—Partial View
CR3
DS2
CR1
J7
T1
T2
J6
3 2 1
Spare
jumpers
E1 port adapter
Cable
connector
Jumper
J6