Patton electronic 1180/35 S1 SUMMARY TABLE, Position, Function, Factory Default, 19.2, 38.4, 48.0

S1 SUMMARY TABLE

Position	Function	Factory Default
S1-1	Data Rate (Distance)	Off	}
S1-2	Data Rate (Distance)	Off		64 kbps (2x)
S1-3	Data Rate (Distance)	Off
S1-4	Data Rate (Distance)	On
S1-5	Clock Source	On	} Internal
S1-6	Clock Source	On
S1-7	DTE Control of RDL	Off		Disabled
S1-8	DTE Control of LAL	Off		Disabled

Switches S1-1 though S1-4: Data Rate (Distance)

Switches S1-1 through S1-4 are set in combination to determine two configuration parameters: synchronous data rate and maximum distance. Maximum distance is determined by the space between data packets in the communication stream between two Model 1180/35s. The "2X" setting doubles the space between data packets, when compared with the normal "1X" setting, and therefore doubles the maximum distance. A setting of "2X" facilitates communication distances up to 3 miles, and is available at certain data rates up to 64 kbps. A setting of "1X" supports communication at the normal distance of 1.5 miles.

S1-1	S1-2	S1-3	S1-4	Data Rate (Distance)
On	On	On	Off	2.4	(1X)
Off	On	On	On	9.6	(2X)
On	Off	On	Off	14.4	(1X)
On	Off	On	On	19.2	(2X)
Off	Off	On	Off	28.8	(1X)
Off	Off	On	On	38.4	(2X)
On	On	Off	On	48.0	(2X)
Off	On	Off	Off	56.0	(1X)
Off	Off	Off	On	64.0	(2X)
Off	On	On	Off	72.0	(1X)
Off	Off	Off	Off	128.0	(1X)
On	On	Off	Off	144.0	(1X)
Off	On	Off	On	192.0	(1X)
On	On	On	On	256.0	(1X)

S1-5 and S1-6: Clock Source

Switches S1-1 and S1-2 are set in combination to determine the source of the transmit clock for the Model 1180/35.

S1-5	S1-6	Setting
Off	Off	Received Recover Clock
On	Off	Internal Clock
Off	On	External Clock
On	On	Internal Clock

S1-7: DTE Control of RDL

The setting for switch S1-7 determines whether the V.35 DTE can activate the RDL test by raising pin L. If DTE Control of RDL is enabled, control from the front panel is disabled if there is no DTE connected.

NOTE: If DTE control is not avialable, set Switch S1-7 to off.

S1-7	Setting
On	DTE control of RDL enabled
Off	DTE control of RDL disabled

S1-8: DTE Control of LAL

The setting for switch S1-8 determines whether the V.35 DTE can activate the LAL test by raising pin N. If DTE Control of LAL is enabled, control from the front panel is disabled if there is no DTE connected.

NOTE: If DTE control is not available, set Switch S1-8 to off.

S1-8	Setting
On	DTE control of LAL enabled
Off	DTE control of LAL disabled

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