12
MULTIPORT CSU/DSU
3. Configuration
You can configure the Multiport CSU/DSU via hardware switches or a software
control port. This section describes all possible configurations.
3.1 Configuring the Hardware DIP Switches
The CSU/DSU has 24 DIP switches that you can configure for a wide variety of
applications. The 24 switches are grouped into three eight-switch sets. You can
access them externally from the underside of the CSU/DSU (see
Figure 3-1
).
Figure 3-1. Underside of the CSU/DSU, Showing the Location of the DIP
Switches.
The three sets of DIP switches on the underside of the CSU/DSU will be
referred to as S1, S2, and S3.
Figure 3-2
shows the orientation of all DIP switches
with respect to “ON” and “OFF” positions.
Figure 3-2. Close-up of Configuration Switches (all three sets are identical
in appearance).
ON
1 2 3 4 5 6 7 8
ON
OFF
S1
S2
S3
OFF
ON
Front
Back