Rane Mongoose Design Manual - Page 14

Remote Audio Devices

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MONGOOSE Design Manual Remote Audio Devices The primary purpose of a Remote Audio Device (RAD) is to amplify, digitize, and transmit a digital audio signal via CAT 5 cable to a Mongoose host device. RADs can also receive a digital signal from the Mongoose and then convert it to analog before sending it to its attached audio equipment. RADs are capable of transmitting and receiving up to four channels of digital audio (two in each direction). To better fit your needs, however, Rane offers various RAD models. Some of these models handle a maximum of two input or two output channels. Most RAD models are designed to fit in a standard U.S. two or four gang switchbox. The CAT 5 cable that connects the RAD to the Mongoose also provides power to the RAD as well as a path for data communications. This makes it possible to control the RAD's configuration settings, view status information, and update a RAD's firmware - all from the host Mongoose. The following picture illustrates how the four twisted pairs within the CAT 5 cable are utilized: RAD NETWORK CAT 5 CABLE CONTENTS Data communications (COMM) 2 digital audio channels (Rx) 2 digital audio channels (Tx) Power: 24 VDC & ground Figure 6: Purpose of each CAT 5 twisted pair The orange pair is reserved for data communications between the RAD and the Mongoose. Data communications is needed for such things as sending configuration information from the Mongoose to the RAD, sending firmware updates from the Mongoose to the RAD, and sending status information from the RAD to the Mongoose. NOTE: Configuration information for a specific RAD (for example, LED intensity, microphone sensitivity, and RAD and channel names) is stored in the Mongoose, not in the RAD. This makes it easy to swap in a new RAD, if necessary, without losing configuration data. The green pair carries two channels each of balanced, differential, digital audio. Rx refers to audio that the RAD receives from the Mongoose. The blue pair carries two channels each of balanced, differential, digital audio. Tx refers to audio that the RAD sends to the Mongoose. The brown pair provides 24 VDC power and ground for the RAD. This is obviously the wire you should check if it appears a RAD is not receiving power. 14

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MONGOOSE
Design Manual
14
Remote Audio Devices
°e primary purpose of a Remote Audio Device (RAD) is to amplify, digitize, and transmit a digital
audio signal via CAT 5 cable to a Mongoose host device. RADs can also receive a digital signal from the
Mongoose and then convert it to analog before sending it to its attached audio equipment. RADs are
capable of transmitting and receiving up to four channels of digital audio (two in each direction). To better
fit your needs, however, Rane offers various RAD models. Some of these models handle a maximum of
two input or two output channels. Most RAD models are designed to fit in a standard U.S. two or four
gang switchbox.
°e CAT 5 cable that connects the RAD to the Mongoose also provides power to the RAD as well as a path
for data communications. °is makes it possible to control the RAD’s configuration settings, view status
information, and update a RAD’s firmware – all from the host Mongoose. °e following picture illustrates
how the four twisted pairs within the CAT 5 cable are utilized:
2 digital audio channels (Rx)
2 digital audio channels (Tx)
Data communications (COMM)
Power: 24 VDC & ground
RAD NETWORK
CAT 5 CABLE
CONTENTS
Figure 6: Purpose of each CAT 5 twisted pair
°e
orange pair
is reserved for data communications between the RAD and the Mongoose. Data
communications is needed for such things as sending configuration information from the Mongoose to
the RAD, sending firmware updates from the Mongoose to the RAD, and sending status information from
the RAD to the Mongoose.
NOTE:
Configuration information for a specific RAD (for example, LED intensity, microphone sensitivity,
and RAD and channel names) is stored in the Mongoose, not in the RAD. °is makes it easy to swap in a
new RAD, if necessary, without losing configuration data.
°e
green pair
carries two channels each of balanced, differential, digital audio.
Rx
refers to audio that the
RAD receives from the Mongoose.
°e
blue pair
carries two channels each of balanced, differential, digital audio.
Tx
refers to audio that the
RAD sends to the Mongoose.
°e
brown pair
provides 24 VDC power and ground for the RAD. °is is obviously the wire you should
check if it appears a RAD is not receiving power.