Raisecom RC3000 - Function of RC3000-SUB-DM2

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5.5 Function of RC3000-SUB-DM2
RC3000-SUB-DM2 is a 2W audio relay card with E&M signal, used for transmission of signal and
voice between offices. There totally 8 channels decided by hardware, unchangeable. Four RJ45
interfaces make up of the 8 channels (each RJ45 interface has two channels). Definition of RJ45
interface is as follows:
Channel 1 2 3 4
Pins
RJ45-1
1T, 2R, 3E, 4M
RJ45-1
5T, 6R, 7E, 8M
RJ45-2
1T, 2R, 3E, 4M
RJ45-2
5T, 6R, 7E, 8M
Channel 5 6 7 8
Pins
RJ45-3
1T, 2R, 3E, 4M
RJ45-3
5T, 6R, 7E, 8M
RJ45-4
1T, 2R, 3E, 4M
RJ45-4
5T, 6R, 7E, 8M
Note: T and R are 2-wire channel voice, E is E signaling Rx and M is M signaling Tx.
Fundamental structure of RC3000-SUB-DM2:
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
RJ45-1 RJ45-2
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Figure 5-9
RJ45-3 RJ45-4
Voice channel control module
Multiplexing module
Voice channel
interface
Bus interface
Multiplexing
bus
Control bus
Multiplexing bus
process module
Control bus process
module
Voice input &
output
Signal input &
output
Control of channel
output
2W & 4W balance
module
Voice D/A converter
E & M signal process
module
Figure 5-10