1.3. Hardware
Configurations
1.3.1. M3.1
Single Balanced Stereo audio channel, 10 message input selections, RS232, wall mount/table top
package.
Left channel balanced audio output
Right channel balanced audio output
Relay(Form C)
Stop contact
Start contacts 1 - 10
Input Common
Power Connection
CH2 Audio Level Adjustments, L/R
Channel 1 Playing LED
Configuration Switches
RS232 Connection
1.3.2. M3.1+1
Dual Balanced Stereo audio channels, 10 message input selections each, RS232, wall mount/table
top package.
Interfaces of M3.1 PLUS,
Channel 2(CH2):
Left channel balanced audio output
Right channel balanced audio output
Relay(Form C)
Stop contact
Start contacts 1 - 10
Input Common
CH2 Audio Level Adjustments, L/R
Channel 2 Playing LED
1.3.3. M3.2
Single Balanced Stereo audio channel, 20 message input selections, RS232, wall/table top mount
package.
Interfaces of M3.1 PLUS,
Second Stop contact
Start contacts 11 - 20
Second Input Common
M3 User's Manual V 1.0 Revised 13, Sept 2011
Page 6
