9) GAIN (Audio Gain Control Switch)
This switch allows for audio gain control for the line-out jack on the back panel. Please make sure all of
thedipsaresetinthesamepositionandaresetaccordingtoyourheadphonespecication(actualeffects
mayvarybythedevicebeingused).
F_USB30
F_U
B_
F_ F_
_
B
BS_
B
SB_
B
_S
S_
_
B
_U
_
B
S
123
123
123
123
1
1
1
1
BSS
S
_S
SSU
1 2 3
S3
BSSS
U
__ 3
F_USB3F
10) COMA (Serial Port Header)
The COM header can provide one serial port via an optional COM port cable. For purchasing the optional
COM port cable, please contact the local dealer.
Pin No. Denition
1 NDCD-
2 NSIN
3 NSOUT
4 NDTR-
5 GND
6 NDSR-
7 NRTS-
8 NCTS-
9 NRI-
10 No Pin
10
9
2
1
Gain Ratio
DIP Setting
DIP 1 DIP 2 DIP 3 DIP 4
2.5X
OFF OFF
OFF
OFF
6X ON ON ON ON