User manual

Installing and Operating BayStack ARN Routers
C-12 114200 Rev. A
56/64K DSU/CSU Interface
The ARN supports DSU/CSU connectivity using an optional DSU/CSU adapter
module. The integrated DSU/CSU functionality allows you to connect directly to
a dataphone digital service (DDS) line. This solution reduces equipment costs and
simplifies connection to a wide area network.
T
able C-10 lists the DSU/CSU interface pin assignments.
Table C-10. DSU/CSU Interface Pin Assignments
Pin Assignment Pin No. Signal
1 TD (Ring)
2 TD (Tip)
3 Not used
4 Not used
5 Not used
6 Not used
7 RD (Tip)
8 RD (Ring)
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