1. MS-400
Specifications
Side A
Ethernet Port
802.3at/af
Mounting Flange
Emergency Amplifier
Volume
Active LED
Link LED
Status LED
Power LED
Return to Factory
Mode Switch
Option DIP Switch
Side B
PA Mute
Terminals
Euroblock
Amplifier
Output
3.5 mm
Line Output
24 Volt DC
Power Input
Power/
Mini-USB Status
Indicator
Reset Button
RS-232 Euroblock
Serial Ports
TLD100 IR Receiver
Input
Remote
Control Ports
Stereo-unbalanced
Line Inputs
Mono-balanced
Line Input
The MS-400 is a networked classroom amplifier with voice over internet
protocal based paging and emergency notification. This unit can be installed as part of the SAFE
(Security Alert For Education) System.
• Easy-to-use, easy-to-install
• Simple user interface software
• Emergency speaker is powered over ethernet
• Intercom and paging functionality built-in
A Component of
• During emergencies, paging can still be heard

2. Amplifier Specifications
Line Inputs
Line Outputs
Mini USB
Minimum Load Impedance
Amplifier Type
Continuous Power @ 1% THD
Damping Factor
S/N
CMRR
Protection Circuits
PA Connector
Control Port
For PC, DVD audio, MP3, auxiliary mic, or other multimedia sources
• 1 Line Balanced/unbalanced input (Euroblock),
• 3 Line unbalanced stereo inputs (3.5 mm)
• 1 Input connector for IR- Satellite/TLD100 (RJ45)
• Internal Network Audio
Unbalanced (3.5 mm)
Internal Network Audio
Control and configuration via software
4 Ohms
92% Efficient Class D
16 Watts (rms) per channel @ 4 ohms
>50 up to rated power with 4 ohm load
>84dB @ 20 Hz to 20 kHz at maximum output
>80 dB
Thermal and Short Circuit protected
Connects to Public Address System and mutes amplifier during announcements
RS-232, 3-pin screw terminal block header, RJ45 Remote Control Port
• (2) RS-232 Communication Ports: 1 port for integration with control
systems or IR-Satellite/TLD100
• (2) Remote Control Ports: 2 ports for integration with wall plate
controls, includes RS-485 control
External Power Supply
100-240 VAC, 50/60 Hz, 1.5A; 24 VDC, 2.5Amps (nominal), regulated
Temperature/Humidity
Storage: -40 to 158°F (-40 to +70°C)/ 10-90% non-condensing.
Operating: -32-122°F (0 to +50°C) / 10-90%
Enclosure Type
Product Weight
Dimensions
Metal, baked powder coated
2.05 lbs (0.92 kg)
8 5/16 (H) x 6 5/16 (W) x 1 1/2 (D) in. (211.14 x 160.34 x 38.10 mm)
Ethernet I/F
10/100 Mbps
Power Input
PoE 802.3aATor 802.3AF for IP interface
Operating Temperature
Protocol
Payload Types
Regulatory Compliance
-10° C to 50° C (14° F to 122° F)
SIP RFC 3261 Compatible
G711
FCC Class A
UL 60950
Lineout:
Output Signal Amplitudes
Output Level
Total Harmonic Distortion
2.0 VPP maximum
+2dBm nominal
0.5% maximum
Backup IP: Audio Output
Level
DC-40319.01
A Component of
802.3AF 8 Watts
802.3AT 25 Watts
The SAFE System (patent pending) is an alert notification system not
intended to be a life-saving device or prevent emergencies. Audio
Enhancement, our agents, employees, subsidiaries, affiliates and parent
companies are exempt from liability for any loss, damage, injury or other
consequence arising directly or indirectly from the application of our
equipment. In the event of misuse or malfunction of the SAFE System or any
of its components, Audio Enhancement, our agents, employees, subsidiaries,
affiliates and parent companies are exempt from liability for any loss,
damage, injury or other consequence arising directly or indirectly therefrom.