2
7511-A2-GN10-10
January 1999
Cables You May Need to Order
You will need cables to connect your Network Interface Module (NIM) to the
network and your 7511 DSUs to DTEs. For further information refer to the
documentation shipped with your NIM, and Appendix A,
Cables and Pin
Assignments, in the User’s Guide.
Installing the Dual DSU
Before you install your DSU, read the
Important Safety Instructions beginning on
page 13.
!
HANDLING PRECAUTIONS FOR
STATIC-SENSITIVE DEVICES
The Model 7511 Dual DSU is designed to protect sensitive components
from damage due to electrostatic discharge (ESD) during normal
operation. When performing installation procedures, however, take
proper static control precautions to prevent damage to equipment. If
you are not sure of the proper static control precautions, contact your
nearest sales or service representative.
Configuring the DSUs
Procedure
To configure the Model 7511 Dual DSU:
1. Review Table 1 to determine the proper settings for your environment.
The first choice for each option (shown in boldface type) is the factory
default setting. If you choose the factory default value, you do not need to
change the position of the associated switch.
2. Mark any options in the table that you wish to differ from the factory default.
3. Using Figure 1 and Table 1, verify that the switch settings of each DSU on the
7511 card match your selections.
Do not modify the settings of switches not listed in the table. Any switch
not designated for customer use should be in the Off position.
4. Where required, verify that the local and remote DSUs employ the same
options. For example, both the local and remote DSU must use the same
Line Rate and 64CC Data Scrambler settings.
496-15104
