Two Wire Mode; Figure 5: Two Wire Network - Bell 5902 Hardware Manual

4.3.2

Two wire mode

Two wire operation uses one pair of wires for transmitting and receiving data. The field wiring
connects to the +Tx/Rx and –Tx/Rx terminals.
Figure 5: Two Wire Network shows a typical 2 wire network. Figure 7: Two Wire RJ-45
Connection and Figure 9: Two Wire Terminal Block Connection give wiring details.
MASTER
SLAVE
SLAVE
SLAVE
Figure 4: Four Wire Network
5902 Bell 202 Modem Hardware Manual
October 19, 2007
–RX
+RX
–TX
+TX
–RX
+RX
–TX
+TX
–RX
+RX
–TX
+TX
–RX
+RX
–TX
+TX
MASTER
--Tx/Rx
+Tx/Rx
SLAVE
--Tx/Rx
+Tx/Rx
SLAVE
--Tx/Rx
+Tx/Rx
SLAVE
--Tx/Rx
+Tx/Rx

Figure 5: Two Wire Network

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