Extron electronic ISM 824 manual Powering Up, Default display cycle

			6 feet
1		6
5		9
					Tip
					Ring
	9-pin D		Connection	TRS Plug	Sleeve (Gnd)
	Pin 2		Computer's RX line	Tip
	Pin 3		Computer's TX line	Ring
	Pin 5	Computer's signal ground		Sleeve

Figure 3-2 — Front 2.5 mm port configuration cable, part #70-335-01

Powering Up

When applying power to the ISM 824, the unit undergoes a start-up self testing sequence as follows:

•The LCD screen lights, and displays “Extron Electronics” for 1 second.

•The LCD displays “ISM 824 Version 1.00”.

•All buttons light red, then green, then amber, and then extinguish, leaving the Video button lit green, the Audio button lit red, and the Menu and Next buttons both lit amber.

NIf a Universal Scaler card (ISM RGB) is installed, during power up a color bar test briefly appears on the display device.

•The LCD begins the default display cycle.

NThe complete sequence above is also made when the unit is restarted after firmware uploads. If the unit is reset via the front panel, the sequence starts at the default display cycle.

Default display cycle

When in use and not in any menu mode, the LCD screen defaults to cycling through the output configuration currently installed. The displayed content may vary from installation to installation, depending on the installed output card configuration. See figure 3-3 for a typical default display cycle.

Power

on

3

sec.

	1
Extron	sec.	ISM 824
Electronics		Version n.nn

All buttons		Video and Audio		Menu and Next
	flash in
		buttons remain lit.		buttons remain lit.
sequence.
1	3		I / O
sec.	sec.			MENU	NEXT
		VIDEO	AUDIO

NThe output cards shown in the default display cycle may differ,depending on the type of cards installed.

2

sec.

1

sec.

Default Display Cycle

Card #1	Out 3/4	2	Card #2	Out 5/6
		sec.
DualWideband			UnivScaler
				2
		2		sec.
Card #4	Out 8	sec.	Card #3	Out 7
Video Scaler			Wideband

Figure 3-3 — Typical default display cycle

ISM 824 Integration Scaling Multiswitcher • Operation and Setup 3-5