TOA Electronics VM-2120 사용자 설명서

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7.3. Connection between Remote Microphone and VM Amplifier 
[Connection method vs. Distance] 
Using the specified cable, connect between the VM amplifier(s) and Remote Microphone(s) via their LINK
connectors. They can be connected in any order. (Two connection examples are shown.) 
Connection example 1 
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 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 Category 5 STP 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
a
b
c
d
e
LINK connector (RJ45)
Category 5 STP straight cable*
PRE OUT jack
POWER AMP IN jack
Audio 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
a
b
c
d
e
LINK connector (RJ45)
Category 5 STP straight cable*
PRE OUT jack
POWER AMP IN jack
Audio cable
Remote
microphone
Category 5 STP straight cable
Category 5 STP cable: 93.8 Ω/km or less
Up to 800 m via Category 5 STP cable
VM amplifier