AT Commands

“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

 

 

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Image 15
Telenetics CDMA manual Dcd Out Rts Txd Cts Rxd, Tx+ Out Rx+