Patton electronic 2450 S1 Summary Table, Switches S1-1 and S1-2 Clock Mode, Switch S1-4 RTS

S1 SUMMARY TABLE

Position	Function	Factory Default
S1-1	Clock Mode	Off	}	Network
S1-2	Clock Mode	On
S1-3	Circuit Assurance	Off		Disabled
S1-4	RTS	On		Forced On
S1-5	Line Rate	Off		56 kbps
S1-6	Front Panel Switches	Off		Enabled
S1-7	DTE Loop Control	On		Disabled
S1-8	Receive RDL	Off		Enabled

Switches S1-1 and S1-2: Clock Mode

The setting for switches S1-1 and S1-2 determines the transmitter clocking mode for the Model 2450.

S1-1	S1-2	Clock Mode	Description
On	Off	External (DTE)	Transmit clock derived
			from terminal interface
Off	On	Network (Looped)	Transmit clock derived
			from the received line
			signal; Use this mode
			for Dedicated DDS
			operation
Off	Off	Internal (Master)	Transmit clock derived
			internally
On	On	Campus Clock	Transmit clock derived
			from received line
			signal. Allows remote
			device (in campus
			clock mode) to initiate
			V.54 loopback. For use
			only in campus short-
			haul configuration.
			(Note: Local device
			must be in internal
			clock mode.)

Switch S1-3: Circuit Assurance

On dedicated circuits, the transmitter and the CTS output can be configured to go On only when a working communication circuit is established. If Circuit Assurance is used, enable it on only one end of the communication link.

	Circuit
S1-3	Assurance	Description
On	Enabled	CTS will go low and the
		transmitter will be held off if the
		receiver is in the No Signal state
		or CD is low
Off	Disabled	The transmitter and CTS will
		operate without regard to the
		receiver state

Switch S1-4: RTS

The RTS input can be forced on, ignoring the terminal’s RTS signal. RTS controls the transmitter by either sending the user’s data or sending an idle code.

S1-4	RTS	Description
On	Forced On	Transmitter is always ON
Off	Follows	The RTS input controls the
	DTE Signal	transmitter

Switches S1-5: Data Rate

This switch controls the data rate on the line (RJ-48S port) and must match the speed of your digital service.

S1-5	Setting
Off	56 kbps
On	64 kbps

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