Toa EV-200M - 7.3. Connection between Remote Microphone and VM Amplifier

16
Extension length
Up to 200 m
Up to 400 m
Up to 800 m
Cable resistance (one way)
200 Ω/km
100 Ω/km
50 Ω/km
Connection example 2
* TIA/EIA-568A standard Category 5 Shielded Twisted-Pair cable (straight type)
Abbreviated to "Cat. 5 STP cable."
The total length of LINK-to-LINK connection cables (Link cables) must be under 800 m (when connected using
Category 5 STP cable).
a + b + c + d + e 800 m
7.4. Power Supply from the VM Amplifier to Remote Microphone
The VM amplifier can only supply power to one Remote Microphone. Therefore, each of the remaining
Remote Microphone(s) needs to have a 24 V DC power supply (AC adapter) of its own.
(1) Power supply via Link cable
(2) Power supply using cables other than Link cable
4-pair twisted pair shielded cable
Remote
microphone
Remote
microphone
24 V DC
Power
supply
24 V DC
Power
supply
24 V DC
Power
supply
Remote
microphone
Remote
microphone
Master VM
amplifier
Sub-VM
amplifier
ab c de
LINK connector (RJ45)
Link cable*
PRE OUT jack
POWER AMP IN jack
Audio cable
Remote
microphone
Link cable
Link cable
4-pair twisted pair shielded cable
Under 40 Ω (one way)
VM amplifier
Example: Up to 200 m via 200 Ω/km cable
Wall connector (RJ45) Wall connector (RJ45)
Remote
microphone
Link cable
Category 5 STP cable: 93.8 Ω/km or less
Up to 800 m via Category 5 STP cable
VM amplifier