Emtech Electronics IA-204S - Manual (Page 10)

10
IA-204S
NOTE! When using the IA-204S with the RCM-42B Room Combining Matrix, you will need a single-pole, double-
throw center off switch to provide for control of the Room Combining feature. This switch connects to the same Room
Combining channel as the IA-204S.
Figure 5 shows the screw terminal connections for the IA-204S.
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 (See figure 6 for more information)
• PIN 1 Speaker A (+)
• PIN 2 Speaker B (-)
• PIN 3 Speaker B (-)
• PIN 4 Speaker A (+)
Figure 5. Rear View of IA-204 S Circuit Board