10
Sympodium IM-150 Installation Guide
Serial Cables
You should use serial cables that have these specifications:
•
less than 50'
(15 m)
in length
•
shunt capacitance of 16 picofarads/ft.
NOTE:
The total shunt capacitance shouldn’t exceed 2,500 picofarads.
Audio Cables
You can integrate your audio system with the IM-150 using cables with RCA Phono, XLR (for
balanced signals) or 3.5 mm audio connectors.
For audio cables with RCA Phono connectors, you should use cables that have these
specifications:
•
flexible, shielded cable with a low-capacitance insulator and a stranded center conductor
•
separate shielded cable for left and right channels
•
copper
braid
shield with a minimum of 75% coverage
•
24 AWG stranded wire conductors
•
length of less than 6'
(1.8 m)
For balanced audio cables, you should use cables that have these specifications:
•
2-conductor, shielded, twisted-pair cables with drain wire
•
minimum wire shield of 90%
Grounding Information
The X-Port 30 unit has a ground connector, which you should use to improve the audio output
quality for ungrounded peripherals that are connected to the X-Port 30 unit, such as laptop
computers. However, you don’t need to use the ground connector if at least one connected
device, such as the main computer, is grounded.
If you remove the control panel and reinstall it at another location, you’ll need to ground the
X-Port 30 unit. See page 20 for details on connecting the supplied ground wire.
NOTE:
This ground is not a safety ground. You don’t have to connect the ground connector to
earth ground for safe operation of the Sympodium IM-150 module.
Location for Ground