S2 Summary Table

Switch S1-8: Response to RDL Request

Use Switch S1-8 to allow Model 1092A to enter the Remote Digital Loopback diagnostic test when requested to do so by the far end Model 1092A 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 1092A.

S1-8	Setting
On	Response to RDL Request Enabled
Off	Response to RDL Request Disabled

3.1.2Configuration DIP Switch Set “S2”

Use the DIP Switches in Switch S2 to enable 19.2 kbps synchronous operation, 2-Wire/4-Wire configuration and loopback modes from DTE . The following table summarizes default positions of DIP Switch S2. Detailed descriptions of each switch follow the table.

Position	Function	Factory Default

S2-1	Data Rate	Off
S2-2	Front Panel Switch Enable	Off	Enable

S2-3	Response to LAL from DTE	Off	Disabled

S2-4	2-Wire/4-Wire	Off	2-Wire

S2-5	Not Assigned	Off

S2-6	Response to RDL from DTE	On	Enabled

S2-7	Not Assigned	Off
S2-8	Not Assigned	Off

Switch S2-1: Data Rate

Use Switch S2-1 with Switches S1-1 and S1-2 to enable additional data rates. The Table in Section 3.1.1 shows all possible bit rate settings for Switches S1-1, S1-2, and S2-1.

Switch S2-2: Front Panel Switch Enable

Use Switch S2-2 to enable or disable the front panel toggle switches.

S2-2	Setting
On	Disable the Front Panel Switches
Off	Enable the Front Panel Switches
	9

Switch S2-3: Response to Local Line Loop Requests from DTE

Use Switch S2-3 to enable Local Line Loopback control from the local DTE interface (See Section 5.3.1).

S2-3	Activation	Description
Off	Disabled	Ignore Local Line Loop Back
		request from DTE interface
On	Enabled	Respond to Line Loop Back
		request from DTE interface

Switch S2-4: 2-Wire/4-Wire

Use Switch S2-4 to configure 2-Wire or 4-Wire twisted pair operation.

S2-4	Setting	Description
Off	2-Wire	2-Wire Operation
On	4-Wire	4-Wire Operation

Switch S2-5: Not Assigned

Switch S2-6: Response to RDL Request from DTE

Use Switch S2-6 to enable RDL control from the local DTE. In the enabled setting, the 1092A responds to RDL requests from the local DTE by sending an RDL loop request to the remote Model 1092A (See Section 5.3.2).

S2-3	Activation	Description
Off	Disabled	Ignore Remote Digital Loopback
		request from DTE interface
On	Enabled	Respond to Remote Digital Loop
		Back request from DTE interface

Switches S2-7 and S2-8: Not Assigned