Toa FS-971 SERIES - Manual (Page 9)

9
3. CONNECTION OF REMOTE MICROPHONE RM-1200
3.1. Notes on Connections
The maximum distance between the main rack and the RM-1200 is 800 m.
Use cables with line resistance of less than 10
Ω.
Use twisted paired cables for bus lines.
Use two-core shielded cables for signal lines.
When connecting the bus line to the RM-1200, be sure to use the RM-1200's BUS1 terminal.
Be sure to observe the correct polarity when connecting the bus line.
• Connections of multiple RM-1200 units
When connecting two or more RM-1200 units, be sure to branch each cable at the main rack.
Up to 8 RM-1200 units
RM-1200
RM-1200
Distance (a + b + c) must be shorter than 800 m.
(a)
(b)
Main rack
Main rack
Main rack
(c)
A maximum of eight RM-1200 units can be connected. However, the DC power supply is additionally required
when the JP-0410's power capacity is insufficient depending on the system configuration.
Make connections so that the total cable distance between the main rack and the RM-1200 is shorter than 800 m.