Switches S1-4 and S1-5: Asynchronous/Sync Operation

Use Switches S1-4 and S1-5 to configure the Model 1092 for async/sync operation. Both switches must be set in the “Off” position. There is no other valid setting.

S1-4

S1-5

Setting

Off

Off

Async/Sync

On

Off

Reserved

Off

On

Reserved

On

On

Reserved

Switches S1-6 and S1-7: System Clock Mode

Use Switches S1-6 and S1-7 to configure the 1092 for internal, external, or receive recover clock mode.

S1-6

S1-7

Clock Mode

Description

On

On

Internal

System clock

 

 

 

generated internally

Off

On

External (DTE)

System clock derived

 

 

 

from terminal interface

On

Off

Receive Recover

System clock derived

 

 

 

from the received line

Off

Off

Hardware Reset

signal.

 

Important: A pair of Model 1092s communicate synchronously across the twisted pair line connection. Therefore, you must set these switches whether your application is async or sync. For X.21 or Async applications, please configure one Model 1092 for internal clock mode and the other Model 1092 for receive recover clock mode.

Switch S1-8: Response to RDL Request

Use Switch S1-8 to allow Model 1092 to enter the Remote Digital Loopback diagnostic test when requested to do so by the far end Model 1092 For example, when Switch S1-8 is set to “ON”, it will enter RDL mode (See Section 5.3.2) when requested to do so by the remote Model 1092.

S1-8

Setting

On

Response to RDL Request Enabled

Off

Response to RDL Request Disabled

3.1.2 Configuration Switch Set “S2”

Use the eight DIP Switches in Switch S2 to enable 19.2 kbps synchronous operation, set the loopback modes and the speed of the control port. The following table summarizes default positions of DIP Switch S2. Detailed descriptions of each switch follow the table.

S2 SUMMARY TABLE

 

Position

Function

Factory Default

 

 

 

 

 

 

 

 

S2-1

19.2 kbps Enable

Off

 

 

 

 

 

 

 

 

 

 

 

S2-2

Not Assigned

Off

 

 

 

 

 

 

 

 

 

 

 

S2-3

Response to LAL from DTE

Off

 

Disabled

 

 

 

 

 

 

 

 

S2-4

Not Assigned

Off

 

 

 

 

 

 

 

 

 

 

 

S2-5

Not Assigned

Off

 

 

 

 

 

 

 

 

 

 

 

S2-6

Response to RDL from DTE

On

 

Enabled

 

 

 

 

 

 

 

 

S2-7

Control Port Data Rate

On

}

9600 bpsc

 

S2-8

Control Port Data Rate

On

 

 

 

 

 

 

 

Switches S2-1: 19.2 kbps Synchronous Rate Enable

Use Switch S2-1 to allow the Model 1092 to operate at the 19.2 kbps synchronous data rate.

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 1092 operates at

 

 

synchronous 19.2 kbps data rate*

*NOTE: To operate at 19.2 kbps, Set Switches S1-1 and S1-2 to the OFF position (see page 6, Switches S1-1 and S1-2).

Switch S2-2: Not Assigned

7

8

Page 5
Image 5
Patton electronic 1092 user manual S2 Summary Table