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10
Switch S1-8.
Must be set to the Off position (Reserved).
Configuring DIP switch S2
Use the eight DIP switches in S2 to enable 19.2 kbps synchronous oper-
ation and set the loopback modes. The following table summarizes
default positions of DIP switches S2-1 through S2-8. Detailed descrip-
tions of each switch follow the table.
Switch S2-1: 19.2 kbps Synchronous Rate.
Enable Switch S2-1 to
allow the Model 1052 to operate at the 19.2 kbps
synchronous
data rate.
Important
A pair of Model 1052s communicate synchronously
across the twisted pair line connection. Therefore,
you
must set these switches whether your application is
async or sync
. For Sync or Async applications, please
configure one Model 1052 for internal clock mode and the
other Model 1052 for receive recover clock mode.
S1-8
Setting
Off
Reserved
Table 1:
S2 Summary Table
Position
Function
Factory Default
S2-1
19.2 kbps Enable
Off
S2-2
RESERVED
Off
S2-3
Reserved
Off
S2-4
Not Assigned
Off
S2-5
Not Assigned
Off
S2-6
Reserved
Off
S2-7
Compatibility Mode
Off
S2-8
Not Assigned
Off
S2-1
Activation
Description
Off
Disabled
Synchronous data rate is 32–128 kbps as
defined by switches S1-1 and S1-2
On
Enabled
Model 1052 operates at synchronous 19.2 kbps
data rate