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“Setting the OMEGA DIP Switch” on page 13).
To facilitate this connection, the OMEGA Marwell socket adapter comes with an RJ-11
extension cable. This cable lets you connect a DTE cable to the appropriate RJ-11 female jack,
without having to insert the DTE cable into the modem enclosure.
Figure 1-1 on page 7 shows the location of these connectors. Figure 2-1 shows a close-up of the
RJ-11 jack, with pin 1 identified. Table 2-4 lists the pin assignments for the RS-232 connector.
Table 2-5 lists the pin assignments for the RS-485 connector.
PIN # 1
Figure 2-1. RJ-11 Jack
Table 2-4. RS-232 Connector Pin Assignments
RJ-11 Connector
Signal Name Input /Output
DB-9 Pin Equivalent
1 DCD OUT 1
2 RTS IN 7
3 TXD IN 3
4 CTS OUT 8
5 RXD OUT 2
6 SG NA 5
Table 2-5. RS-485 Connector Pin Assignments
RJ-11 Connector
Signal Name Input /Output
DB-9 Equivalent
1 Not Used
2 TX+ OUT N/A
3 TX- OUT N/A
4 RX+ IN N/A
5 RX- IN N/A
6 Not Used
Page 15