7
Output Wiring
Balanced Connection
Use this wiring when the external equipment requires a balanced, 3-wire signal.
Connect the shield wire to the ground terminal of the external equipment and to the ground ter-
minal of the RIO
1
S. If the "+" signal lead from the external equipment can be identified, connect it
to the plus "+" terminal of the RIO
1
S. If the external equipment polarity cannot be identified, con-
nect either of the hot leads to the plus "+" terminal. Connect the remaining lead to the minus "-"
terminal of the RIO
1
S.
Note:
If polarity of the output signal versus the input signal is important, it may be necessary to
reverse input lead connections.
Unbalanced Connection
When the external device provides only an unbalanced connection (signal and ground), the RIO
1
S
module should be wired with the "-" terminal shorted to ground. The unbalanced signal's shield
wire is connected to the input module’s ground and the signal hot wire is connected to the "+"
terminal. Since unbalanced connections do not provide the same amount of noise immunity that a
balanced connection does, the connection distances should be made as short as possible.
Speaker Output Wiring
8
Ω
Output
The RIO
1
S output is capable of driving an 8
Ω
speaker load. Available power is up to 750mW. When
connecting a speaker, be sure to connect the module’s "+" and "-" to the speakers "+" and "-",
respectively.