
Nortel Networks 5399 Access Switch Hardware Installation Guide
Chapter2 Installingthe Model5399 Remote Access ConcentratorModule
2-4
Figure2-1. Model 5399 Jumper and Connector Locations
EthernetSegment Bank Selector
The Ethernetsegment bank selector(see Figure 2-1),consisting of three
rowsof 20 pins (labeled J5, J21 and J22) and a jumper card, determines
whether the moduleconnects to Ethernet segments 1 through 6 or
segments7 through 12 at power up. When the jumper card is installed on
the two rowsof pins nearest the front of the module (using J21), the
module has accessto segments 1 through 6 (the factory default setting);
whenthe jumper card is installed on the two rows of pins nearest the back
of the module( usingJ22), the module has access to segments 7 through
12.
1
DIP
Switch
S1
Jumper
Card
ON
2
3
4
5
6