Clear-Com MS-704 - Manual (Page 19)

M S - 7 0 4 / R M - 7 0 4 F O U R - C H A N N E L M A I N / R E M O T E S T A T I O N S
2 - 3
2 amperes. A short on any one intercom line will not bring the whole system
down.
Note: Power supply lines connected together at remote stations will disable
the individual channel short circuit protection feature.
• FRONT PANEL “SHORT” LIGHTS: There are four short lights on the
front panel (one for each channel). The short lights illuminate steadily when
an overload or short condition is detected. They blink if power to a channel
has been shut off as a result of an overload or short.
• PARALLELING MULTIPLE POWER SUPPLIES: Multiple power
supplies can be paralleled to increase system capacity. The MS-704’s internal
power supply will automatically detect the actions of other power supplies
during overloads and short circuits to restore power as quickly as possible.
• MULTI-CHANNEL REMOTE STATIONS MAINTAIN THE POWER
LINE ISOLATION. Internal jumpers in the RM-704 allow you to select
non-isolation if needed. See the Operation chapter of this manual for more
information.
• LOW NOISE CIRCUITRY: The direct current outputs of the MS-704’s
internal power supply contain very little hum and noise. The power supply
does not contribute to audible noise in the remote stations and beltpacks.
• CONNECTION TO AC MAINS: The AC power line supplies power to
the MS-704’s internal power supply. The power supply will accept any line
voltage between 100 and 240 VAC at 50-60 Hz. It will automatically adjust
to the line voltage. There is no need for a voltage selector switch or an
external fuse. The unit draws a maximum of 60 VA of power from the AC
line. Clear-Com power supplies can be paralleled to increase the number of
remote stations that can be operated in a system.