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DSR Status During Local Loopback
Choosing option 6 in the Software Switch Menu takes you to the
DSR Loop Status Menu (below). This option controls the behavior of
the DSR output during local loopback. To force DSR high (ON) during
local loopback, enable this option. To force DSR low (OFF) during a
local loopback, disable it.
Rate Converter/DTE Rate
Choosing option 7 in the Software Switch Menu takes you to the
Rate Adapter/DTE Rate Menu (opposite page). The Model 2500RC
Series rate converter adapts a 56 Kbps or 64 Kbps line rate to slower
DTE data rates. Set the Rate Converter to match the DTE data rate. If
the DTE data rate is the same as the line rate, disable rate conversion
by selecting item 6 on this menu.
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NOTE: For DTE data rates of 56 kbps or 64 kbps, set the rate
adapter to “Line Rate = DTE Rate”, and set the Line Rate to 56 or
64 kbps, respectively. For DTE rate of 57.6 kbps, set rate adapter
to “Line Rate = DTE Rate”, set line rate to 56 kbps, set DTE for two
stop bits, and set CSU/DSU character length to “11 bits”.
DTE Loop Control
Choosing option 8 in the Software Switch Menu takes you to the
DTE Loop Control Menu (below). The local and remote loopbacks on
the Model 2500RC Series can be controlled from the DTE interface by
raising or lowering the LL and RL signals. To allow the DTE to control
these loopbacks in this manner, enable this option. Disable if you want
the Model 2500RC Series to ignore these signals.
Clock Mode
Choosing option 9 in the Software Switch Menu takes you to the
Clock Mode Menu (below).