MS-700: Fire the EPIC Strobe on Every Intercom, Page & Notification

Quick Reference QR-AE-001 · Audio Enhancement EPIC · Rev 1.1 · Sept 2026

Use this when a strobe needs to go off for any broadcast, not just one specific event.

✅ What this does

Strobe WILL fire for	Strobe will NOT fire for
Intercom calls Pages Notification broadcasts Serial commands	In-class microphones (teacher/student mics) This is intended. Classroom mic audio doesn't close GPO4, so the strobe stays off.

🧰 What you need

• MS-700 amplifier
• EPIC Strobe (ST-AC-2187)
• RJ-45 patch cable
• RJ-45 plug + short piece of wire (for the jumper)
• Access to the EPIC Event Engine

1️⃣ Set all 5 strobe DIP switches to OFF

All OFF = Serial Control Mode, Hardware Address 1 (the AE default). DIP 3, 4 & 5 OFF selects serial mode, and DIP 1 & 2 set the address. Toggle toward the number = OFF.

2️⃣ Plug the strobe into a Remote Control port

Serial mode requires a RMT CTRL port. Any of them works, but the number after $SSP: in every command must match the port you use. This guide uses RMT CTRL 1.

Strobe plugged into	Command starts with
RMT CTRL 1	$SSP:1:
RMT CTRL 2	$SSP:2:
RMT CTRL 3	$SSP:3:

3️⃣ Build a jumper plug: pins 6 & 8 into GPIO 3&4

Crimp an RJ-45 plug with a short wire connecting pin 6 (Input 4) to pin 8 (Output 4), then plug it into the GPIO 3&4 port. Leave all other pins empty.

4️⃣ Create two events in the EPIC Event Engine

EPIC doesn't reverse actions on its own, so the strobe needs a separate "off" event.

Setting	Event 1: Strobe Start	Event 2: Strobe Stop
When any of these happen	Devices – A device detects a change → Device Type MS-700 → select every MS-700 that has a jumpered strobe	Devices – A device detects a change → Device Type MS-700 → select every MS-700 that has a jumpered strobe
Input	Input 4 Closed	Input 4 Open
Then these actions will happen	Devices – Send actions/commands to devices → Action Send Custom Command → Device Type MS-700 → Command Type Serial → same device(s) → Start with previous	Devices – Send actions/commands to devices → Action Send Custom Command → Device Type MS-700 → Command Type Serial → same device(s) → Start with previous
Command	$SSP:1:24565331433146302C3758310D0A[CR][LF]	$SSP:1:2456533158300D0A[CR][LF]

Copy/paste commands

Strobe Start (red, flashing):

$SSP:1:24565331433146302C3758310D0A[CR][LF]

Strobe Stop:

$SSP:1:2456533158300D0A[CR][LF]

Using RMT CTRL 2 or 3? Change $SSP:1 to $SSP:2 or $SSP:3 in both commands.

Example screenshots

Strobe Start: Input 4 Closed → start command

Strobe Stop: Input 4 Open → stop command

💡 Why the jumper works

🔎 Reading the command

$SSP:1:24565331 4331 46302C37 5831 0D0A[CR][LF]

Part	Means	Change it to…
$SSP:1	Send out RMT CTRL port 1	$SSP:2 / $SSP:3 for RMT CTRL 2 or 3
24565331	$VS1: strobe hardware address 1	Last two digits: 30 = all strobes, 31–34 = address 1–4
4331	C1: color 1 (red)	4331–4337 (color table below)
46302C37	F0,7: flash	Leave as is
5831	X1: on	5830 (X0) = off. That's the Stop command.
0D0A + [CR][LF]	Return + line feed for the strobe / ends the command in EPIC	Always keep both

🎨 Want a different color?

In the Start command, swap the 4331 for the color code below. The Stop command stays the same for every color.

Color	Swap 4331 for	Full Strobe Start command (port 1, address 1)
🔴 Red	4331	$SSP:1:24565331433146302C3758310D0A[CR][LF]
🟠 Orange	4332	$SSP:1:24565331433246302C3758310D0A[CR][LF]
🟡 Yellow	4333	$SSP:1:24565331433346302C3758310D0A[CR][LF]
🟢 Green	4334	$SSP:1:24565331433446302C3758310D0A[CR][LF]
🩵 Aqua	4335	$SSP:1:24565331433546302C3758310D0A[CR][LF]
🔵 Blue	4336	$SSP:1:24565331433646302C3758310D0A[CR][LF]
🟣 Purple	4337	$SSP:1:24565331433746302C3758310D0A[CR][LF]

🔢 Strobe hardware addresses

Set with DIP 1 & 2. DIP 3–5 stay OFF on every strobe for serial mode.

Address	DIP 1	DIP 2	Hex in command
All strobes	any	any	24565330
1 (default)	Off	Off	24565331
2	Off	On	24565332
3	On	Off	24565333
4	On	On	24565334

🔗 Daisy-chaining strobes

• Run CAT6 from RMT CTRL to strobe 1, then strobe 1 to strobe 2, and so on.
• Same color everywhere? Leave them all at address 1 and one command runs them all.
• Different colors per strobe? Give each strobe its own address, then send a separate command per address (or use 24565330 to hit all of them).
• Power note: the older EPIC Strobe Spec Sheet (DC-41143.0725) lists 2 max on an MS-600/MS-700, and each strobe draws 250 mA at 24 V. Plan for 2 per MS-700 unless AE confirms 4.

🖲️ Running an ITC through a strobe

• The ITC talks to the amp over RS-232 on a RMT CTRL port and draws 24 V from it. Because the strobe ports are pass-through, the ITC should work plugged into the strobe's second port.
• The strobe only responds to $VS commands, so ITC traffic on the same line shouldn't trigger it.
• Watch power. AE notes an MS-700 that keeps rebooting with peripherals like an ITC attached may be drawing too much.

🛠️ Field tips & troubleshooting

• Strobe not firing on broadcasts? Make sure GPO4 is set to close for intercom, page and notification on that MS-700.
• No response at all? Check that $SSP:# matches the port and that DIP 1 & 2 match the address. Try typing the command instead of pasting it.
• Changed a DIP switch? Power-cycle at the amp. Settings only load at startup.
• Emergency events with their own strobe color: open GPO4 first to clear the intercom strobe, then send the new color with a 1-second delay.
• Wrong color? Check the hex with an ASCII-to-hex converter (AE suggests rapidtables.com).
• Amp rebooting after adding strobes or an ITC? Too much draw on the 24 V remote power. Remove a device and retest.

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Source files: SharePoint › Odoo › Quick Reference › VSC Guides › Audio Enhancement › QR-AE-001. Official AE reference: EPIC Strobe Manual DC-41258.0426 (see AE How To / AE Knowledge Base).