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DB25
Signal name
Note: The above connection mode is just for users' reference.
5.10 Function of RC3000-SUB-D422
RC3000-SUB-D422 user card has standard RS422 interface. There are 8 channels which are decided
by hardware, unchangeable. Four RJ45 connectors make up of the 8 channels and each RJ45
connector has two channels. And the definition of each interface is as follows:
1 2 3 4 5 6 7 8
Channel
Pins
1RA,2RB,3TA,4TB
Channel
Pins
1RA,2RB,3TA,4TB
Note: 1RA is the positive input of RS422 Rx data, 2RB is the negative input of RS422 Rx data, 3TA
is the positive output of RS422 Tx data and 4TB is the negative output of RS422 Tx data.
RC3000-SUB-D422 user card has static protection and the serial interface will not be destroyed. In
application, please connect the cable first and then plug the user card into RC3000 slot.
5.11 Function of RC3000-SUB-DMT
RC3000-SUB-DMT is a magneto telephone sub-card and can transmit magneto telephone calls
(hot-wire magneto telephone). There are 8 channels which are decided by hardware, unchangeable.
Two RJ45 connectors make up of the 8 channels and each RJ45 connector has four channels. And the
definition of each interface is as follows:
1 2 3 4 5 6 7 8
3
2
TXD
RXD
1 2 3 4 5 6 7 8
RJ45-1
RJ45-2
1
RJ45-1
5RA,6RB,7TA,8TB
5
RJ45-3
5RA,6RB,7TA,8TB
1 2 3 4 5 6 7 8
RJ45-1
Figure 5-16
7
6, 8, 20
Ground
Internal connection Internal connection
1 2 3 4 5 6 7 8
RJ45-3
Figure 5-15
2
RJ45-1
1RA,2RB,3TA,4TB
6
RJ45-3
1RA,2RB,3TA,4TB
RJ45-2
4, 5
1 2 3 4 5 6 7 8
RJ45-4
3
RJ45-2
RJ45-2
5RA,6RB,7TA,8TB
7
RJ45-4
RJ45-4
5RA,6RB,7TA,8TB
User Manual
4
8
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