Emtech Electronics IA-204P - Manual (Page 9)

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Figure 4 shows the screw terminal connections for the IA-204R.
J1 10 PIN CONNECTOR
• Same as IA-204P
J2 7 PIN CONNECTOR
• PIN 1 Power supply ground
• PIN 2 Power Supply + input 24 vdc
• PIN 3 No connection
• PIN 4 Send-
• PIN 5 Send +
• PIN 6 Return –
• PIN 7 Return +
J3 For future expansion.
J4 3 PIN WHITE CONNECTOR: This connector is for the Emtech T-70V transformer connector. If you do
not order this transformer, a factory installed jumper is placed between pins 1 and 3.
J5 FOUR PIN CONNECTOR
• PIN 1 - Speaker A
• PIN 2 - Speaker B
• PIN 3 Room Mixing, Group B select, connects to the Buss B input on the RCM-42B room input that is
connected to this IA-204R
• PIN 4 Room Mixing, Group A select, connects to the Buss A input on the RCM-42B room input that is
connected to this IA-204 R
Figure 4. Rear View of IA-204R Circuit Board
IA-204S