Configuration Switch Set "S2" - Patton electronics 1140 User Manual

S1-1 through S1-4: Data Rate Setting
Switches S1-1 through S1-4 are set in combination to determine
the asynchronous and synchronous data rate for the Model 1140.
S1-1 S1-2 S1-3
On On On
Off On On
On Off On
Off Off On
On On Off
Off On Off
On Off Off
Off Off Off
On On On
Off On On
On On Off
Off On Off
S1-5 and S1-6: Clock Source
Switches S1-5 and S1-6 are set in combination to determine the
transmit clock source for the Model 1140.
S1-5 S1-6 Setting
On On Internal transmit clock
Off On Receive recover clock
On Off External transmit clock
S1-7: Asynchronous/Synchronous Mode
The setting for switch S1-7 determines whether the Model 1080A
is in asynchronous or synchronous operating mode.
S1-7 Setting
On Asynchronous
Off Synchronous
5
S1-4 Setting
On 1.2 Kbps
On 1.8 Kbps
On 2.4 Kbps
On 3.6 Kbps
On 4.8 Kbps
On 7.2 Kbps
On 9.6 Kbps
On 14.4 Kbps
Off 19.2 Kbps
Off 28.8 Kbps
Off 38.4 Kbps
Off 57.6 Kbps
S1-8: Carrier Control Method
The setting for switch S1-8 determines whether the carrier is "con-
stantly on" or "controlled by RTS". This setting allows for operation in
switched carrier, multipoint and/or hardware handshaking applications.
S1-8 Setting
Off Constantly On
On Switched Carrier

3.3 CONFIGURATION SWITCH SET "S2"

The DIP switches on S2 set word length, extended signaling rate,
RTS/CTS delay and V.52 and V.54 diagnostic test.
S2 SUMMARY TABLE
Position Function
S2-1 Word Length
S2-2 Word Length
S2-3 Extended Signaling Rate
S2-4 RTS/CTS Delay
S2-5 RTS/CTS Delay
S2-6 Future Use
S2-7 Future Use
S2-8 V.52/V.54 Tests
Figure 4. Summary of DIP switch default settings for S2
S2-1 and S2-2: Word Length
Switches S2-1 and S2-2 are set in combination to determine the
word length for asynchronous data.
S2-1 S2-2 Setting
Off On 8 bits
On On 9 bits
Off Off 10 bits
On Off 11 bits
Factory Default
Off }
10 bits
Off
Off-2.5% to +2.3%
On
}
7 mS
On
-
-
Off Enable
6