FH-1Is an output expander. All DA converters are 14 bit. By daisy-chaining using Expansion In and Expansion Out connectors, up to seven FHX-1s can be chained from one FH-1 (at this time, 64 outputs).
The range of each output can be set with "Output level jumpers" like FH-1.
In FH-1, expansion channels (1-7) are allocated to each connected FHX-1. The output of FH-1 is 1-8, and subsequent outputs 9-16 are allocated to FHX-1 of channel 1 and outputs 17-24 to FHX-1 of channel 2. "Expander Selection Jumpers" sets the expansion channel of FHX-1. "Expander Selection Jumpers" has jumper positions 1, 2, and 3 from the left, but adjust them according to the channel you want to set.
- Expansion channel 1: 0,0,1
- Expansion channel 2: 0,1,0
- Expansion channel 3: 0,1,1
- Expansion channel 4: 1,0,0
- Expansion channel 5: 1,0,1
- Expansion channel 6: 1,1,0
- Expansion Channel 7: 1,1,1
And set the jumper (1 for jumper ON and 0 for jumper OFF). In the photo above, it is set to expansion channel 1.