3.Observe the Signal/Pin relationships on the Model 2111’s Line Interface jack. This Line Interface is a 2 wire interface.

 

1

(N/C)

1

2

(N/C)

3

(N/C)

2

3

4

(Tip)

4

 

 

55 (Ring)

6

6 (N/C)

7

8

7 (N/C)

8 (N/C)

Figure 3. Model 2111 twisted pair line interface.

4.Connect the Line interface of a Model 2111-CO to the Line interface of a Model 2111-CP with a twisted pair cable as shown below:

SIGNAL

PIN

PIN

SIGNAL

Tip

4 --------------------------

4

Tip

Ring

5 --------------------------

5

Ring

NOTE: Any modular twisted pair cable connected to the Model 2111 must be shielded cable, and the outer shield must be properly terminated to a shielded modular plug on both ends of the cable

7

3.2 CONNECTING THE 10BASET ETHERNET INTERFACE

The RJ-45 jack labeled “Interface Port” is the 10BaseT interface. This port is designed to connect directly to a 10BaseT network. Figure 4, below, shows the Signal/Pin relationships on this interface. You may connect this port to another Ethernet port via a Type 4 or Type 5 cable that is up to 330 feet long.

 

1

TD+ (data output from 2111

1

2

TD- (data output from 2111)

3

RD+ (data input to 2111)

2

3

4

(no connection)

4

 

 

55 (no connection)

6

6

RD- (data input to 2111)

7

8

7

(no connection)

 

8

(no connection)

Figure

4. Line Interface.

3.2.1 Connecting the 10Base-T Ethernet Port to a Hub

The Model 2111 10Base-T interface is configured as DTE (Data Terminal Equipment), just like a 10Base-T network interface card in a PC. Therefore, it “expects” to connect to a 10Base-T Hub using a straight-through RJ-45 cable. Use the diagram below to construct a cable to connect the 2111 to a 10Base-T Hub.

2111

10Base-T Hub

RJ-45 Pin No.

RJ-45 Pin No.

1

(TX+) -------------------------------------------------

1

(RX+)

2

(TX-) --------------------------------------------------

2

(RX-)

3

(RX+)-------------------------------------------------

3

(TX+)

6

(RX-)--------------------------------------------------

6

(TX-)

3.2.2 Connecting the 10Base-T Ethernet Port to a PC (DTE)

The Model 21111 10Base-T interface is configured as DTE (Data Terminal Equipment). If you wish to connect the 2111 to another DTE device such as a 10Base-T network interface card in a PC, you must construct a 10Base-T crossover cable as shown in the diagram below.

2111

10Base-T DTE

RJ-45 Pin No.

RJ-45 Pin No.

1

(TX+)

1

(TX+)

2

(TX-)

2

(TX-)

3

(RX+)

3

(RX+)

6

(RX-)

6

(RX-)

 

 

8

 

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Patton electronic 2111 user manual Signal PIN, Connecting the 10BASET Ethernet Interface