Zapco DC Intro - Manual (Page 6)

Addressing your amps in the Network
1 2 3 4 5 6
USB Cable connects DC Amplifier to PC
4 conductor Phone cable
connects each DC- Series
amp to the others in the
network
Addressing is by 6
position DIP Switch
.
 Pins 1 to 4 address the
Amplifiers

Pins 5 and 6 are not used
and should always stay in the
up position.
Each Amplifier in the network must have a different
combination of pins 1 to 4 so each will have a unique position in the
network