MTI DOC 91743-A1
CONNECTING TO THE NETWORK
The 91743 Digital Intercom Amplifier supports a 100 Mbps network connection.
1.
Connect a Cat5e (or better) unshielded twisted pair (UTP) cable and connector to the RJ-
45 connector on the 91743.
2.
Connect the other end of the UTP cable to an available port on a 10/100 (minimum)
compatible network switch.
CONNECTING POWER
The 91743 Digital Intercom Amplifier requires a connection to a 12V DC power supply which is
capable of supplying 2 A of current.
To connect power:
1.
Connect two power conductors to pin 1 and 2 of the power connector.
2.
Connect the other end of the two power conductors to the appropriate power source.
The 91743 ships with a 12V DC power supply which
already has the five position connector pre-
terminated.
CONNECTING THE SPEAKER BUSS
The 91743 Digital Intercom Amplifier is intended to be used with MTI 81129/229 termination
boards and 25 volt line audio devices. The speaker buss from the amplifier connects to the
termination boards which distribute the audio signal to the audio devices. MTI recommends
using West Penn Wire #292 cable for connecting an amplifier to MTI termination boards.
To connect the speaker buss to an MTI 81129/229 termination board:
1.
Connect one end of the WPW 292 cable to the speaker buss connector on the MTI
termination boards.
2.
Connect the other end of the WPW 292 cable to the speaker buss connector on the MTI
91743 amplifier.
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