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CHAPTER 3: Configuration
Switches S1-1 and S1-2: Data Rate
Use Switches S1-1 and S1-2 with Switch S5-1 to determine the operable sync or
async bit rate for the 2-Wire IDSL Line Driver Rack Card. The settings shown in
Table 3-2 are the only applicable bit rate settings.
Table 3-2. Bit rate settings: S1-1, S1-2, and S5-1.
S1-1
S1-2
S5-1
Sync Data Rate
Async Data rate
On
On
Off
32 kbps
Reserved
Off
On
Off
56 kbps
Reserved
On
Off
Off
64 kbps
Reserved
Off
Off
Off
128 kbps
0 to 38.4 kbps
On
On
On
Reserved
Reserved
Off
On
On
Reserved
Reserved
On
Off
On
Reserved
Reserved
Off
Off
On
19.2 kbps
Reserved
Switch S1-3: Data Set Ready During Local Line Loopback Test
Use Switch S1-3 to control the behavior of the DSR signal at the EIA interface
during the local line loopback test.
Table 3-3. DSR signal at the EIA interface during local line loopback test.
S1-3
Setting
Description
On
Enabled
DSR is on during local line loop (default)
Off
Disabled
DSR is off during local line loop
