4.Use the supplied
5.Before connecting the power cord, verify the polarity by plugging it into the power supply with no load and checking the output with a voltmeter.
WARNING The two power cord wires must be kept separate while the 
power supply is plugged in. Remove power before wiring.
Alternately, an Extron PS 124 Universal 12 VDC power supply (part number
60‑1022‑01) can power up to eight MSWs or other Extron 12 VDC devices using only one AC power connector.
Front Panel Controls and Indicators
The MSW 4V rs and MSW 4SV rs have identical front panels, shown in figure 6.
61
MODE
AUTO
SWITCH
NORMAL AUTO
1 | 2 | 3 | 4 |
|
|
| A/V SWITCHER |
5 | 4 | 3 | 2 |
Figure 6. MSW 4V rs and MSW 4SV rs Front Panel
Input Selection
AInput 1 through 4 LEDs — The Input LEDs light to identify the selected input.
BInput 1 through 4 buttons — Each Input button selects the associated input for output.
The Input 1 (E), Input 2 (D), and Input 3 (C) buttons are also used to toggle auto switch mode on and off. See the following section.
Auto Switch Mode Controls and Indicators
When auto switch is activated, the switcher automatically detects and selects the highest numbered input with video sync present.
CAuto (switch) button — The Auto button is used with the Mode button (E) to select auto switch mode. Auto is a secondary function of the Input 3 button.
DNormal button — The Normal button is used with the Mode button (E) to select normal mode. Normal is a secondary function of the Input 2 button.
EMode button — The Mode button is used with the Normal button (D) or Auto button (C) to select the switching mode. Mode is a secondary function of the Input 1 button. See “Mode selection” on the next page.
FAuto Switch LED — When lit, the Auto Switch LED indicates that the switcher is in auto switch mode. In this mode, the MSW automatically switches to the highest numbered input with active sync pulses. When this LED is unlit, the switcher is in normal (manual) mode.
MSW 4V rs and MSW 4SV rs • Panel Features | 7 |