Extron electronic 450 manual Sync Termination Switches CrossPoint

Sync Termination Switches (CrossPoint)

CSync termination switches — The RGB (CrossPoint) matrix switchers have input Sync termination switches on the rear panel (see figure 19) that provide a way to condition non-TTL sync levels greater than 5V p-p. Sync termination enables the sync to be properly passed from input to selected output(s). The matrix switchers have two sets of sync termination switches; one for horizontal or combined sync and a second set for vertical sync.

The CrossPoint 450 Plus matrix switchers have Sync termination switches for inputs 1 through 8.

The CrossPoint Ultra matrix switchers have Sync termination switches for inputs 1 through 4.

I N P U T S

	Ω	H
	Ω	HV SYNC
1 2 3 4 5 6 7 8
	O U T P U T S

I N P U T S

	Ω
1 2 3 4 5 6 7 8	Ω	V	SYNC

O U T P U T S

1 2 3 4 1 2 3 4

CrossPoint 450 Plus 2412, 2424, 3216, and 3232

15

Ω

Ω

16

	V
15	Ω
	Ω

H SYNC V SYNC

V

Ω

Ω

16	CrossPoint Ultra
Ω	84, 88, 124, and 128
Ω

CrossPoint Ultra 816, 168, 1212, and 1616

Figure 19. Sync Termination Switches

Each switch provides the option of selecting either 510 ohms or 75 ohms.

The 75 ohms position is required only for an input with non-TTL sync, greater than 5V p-p. The normal position is 510 ohms.

NOTE: An input that produces an out of sync display, a display that is rolling vertically with or without horizontal tearing, could indicate a non-TTL sync input. A device that is known to output non-TTL sync levels (greater than 5V p-p) should be connected to one of the inputs with sync termination switches, and the switches for that input should be set to the 75 ohm position. If you are not sure, check the specifications in the User Guide for the input device.

CrossPoint and MAV Series Matrix Switchers • Installation 23