Extron electronic VS 200 SL user manual Rear Panel Operation, DIP Switch Settings, ShiftLock

Operation

Rear Panel Operation

Following is the operation of VS 200 SL switches and connectors.

BNC Connectors – Connect Hi-Res BNC cables per application requirements. See "Automatic Sync Output Detection" below.

ShiftLock In/Out Connectors – Allows connection of more than one VS 200 SL to synchronize shifting. Use 2-conductor cables to daisy-chain ShiftLock control between master and slave devices. Set up ShiftLock only on the master; slaves shift with the master. See pages 2-2 and 2-3.

DIP Switch Settings

The VS 200 SL has auto sync, which means it outputs sync according to the impedance detected on the output cables. However, the DIP switch settings take priority. If a switch is set, it forces a condition, regardless of what is detected.

Following are the DIP switch settings for the VS 200 SL. In the default positions (all switches OFF), sync output is determined by the impedance detected through the output cables.

Sw#	Position	Function
1	ON	Always separate H and V sync
	OFF-normal	Automatic sync output detection
2	ON	Always negative sync
	OFF-normal	Sync output polarity follows Input
3	ON	No serration pulses
	OFF-normal	Serration pulses pass through.
		(or added if not already present)
4	ON	Vertical sync width = 2-3 times normal
	OFF-normal	Vertical sync width = normal
5		Not used

Automatic Sync Output Detection

Sync is output in one of two ways, depending on the impedance detected through the output cables:

Impedance = 75 ohm on R, G, and B, or up to 1 kohm on sync lines.

Cabling Examples:

• Impedance on only R, G, B, & H/HV channels, output = composite sync.

•Impedance on R, G, B, H/HV & V channels

output = separate H & V sync.

__ Turning a DIP switch ON overrides automatic sync detection.

ShiftLock Operation

ShiftLock

The ShiftLock feature allows two or more VS 200 SL units to be linked together so that all the units shift together. A toggle switch on the front panel allows one unit to be set as the master. Each of any other units connected must be set as a slave. The shift signal goes from the master to all slaves. The ShiftLock controls on the front panel are described in chapter 3.

_ When the switch is set to Slave, the VideoShift controls for that unit are disabled.

IN OUT

Two connectors on the back panel are for the master-slave interconnecting cables. Extron provides the cable connectors. See page 2-3 for instructions on making the cables.

Setup example:

1.The master unit has a cable connected from its ShiftLock Out port to the ShiftLock In port of the first slave. Its toggle switch must be set to the Master position.

2.The first slave has a cable from its ShiftLock Out port to the ShiftLock In port of the next slave. Its toggle switch must be set to the Slave position.

3.Repeat step #2 for each slave unit, except that the last slave (or the only slave), will have no cable in its ShiftLock Out port.

IN OUT

IN OUT

IN OUT

IN OUT

2-1 Extron • VS 200 SL • User’s Manual Extron • VS 200 SL • User’s Manual 2-2