Cisco VG350 Voice Gateway Hardware Installation Guide
Cable Specifications and Information
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Table of Contents

Cable Specifications and Information

Console and Auxiliary Port Cables and P inouts

Console Port to PC

Console Port to ASCII Terminal

Auxiliary Port to Modem

Alternative Connections to Terminal and Modem

Gigabit Ethernet Port Pinouts (RJ-45)

Analog Voice Multiport Pinouts (RJ-21X/CA21A)

Cable Specifications and Information

This appendix provides the connector and pinout information you need for making or purchasing cables used with Cisco VG350 Voice Gateway. To order cables from Cisco, see the “$paratext>” section . This appendix contains the following sections:

The following list shows you which table to see for pinout information:

 

Console and Auxiliary Port Cables and Pinouts

Your Cisco VG350 Voice Gateway comes with the cable and adapters you need to connect a PC, an ASCII terminal, or a modem to your Cisco VG350 Voice Gateway. The cable kit includes:

  • RJ-45-to-RJ-45 rollover cable
  • RJ-45-to-DB-9 adapter cable for console connection
  • RJ-45-to-DB-25 adapter cable for modem connection

The following illustrations and tables provide cable pinout information:

The console port is configured as data communications equipment (DCE); the auxiliary port is configured as data terminal equipment (DTE). Both are asynchronous serial ports and use RJ-45 connectors.

Console Port to PC

Figure A-1 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-9 female DTE adapter (labeled TERMINAL); Table A-1 lists the pinouts.

Figure A-1 Console Port to PC—Cable and Adapter

 

 

Table A-1 Console Port to PC—Cable Pinouts (RJ-45 to DB-9)

Console Port
(DCE, RJ-45)
RJ-45-to-RJ-45
Rollover Cable
RJ-45-to-DB-9
Adapter “TERMINAL”
PC Port
(DTE, DB-9)
Signal
RJ-45 Pin
RJ-45 Pin
RJ-45 Pin
DB-9 Pin
Signal

RTS

11

8

8

8

CTS

DTR

2

7

7

6

DSR

TxD

3

6

6

2

RxD

GND

4

5

5

5

GND

GND

5

4

4

5

GND

RxD

6

3

3

3

TxD

DSR

7

2

2

4

DTR

CTS

81

1

1

7

RTS

1.Pin 1 is connected to pin 8 inside the Cisco VG350 Voice Gateway.

Console Port to ASCII Terminal

Figure A-2 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-25 female DTE adapter (labeled TERMINAL); Table A-2 lists the pinouts.

Figure A-2 Console Port to ASCII Terminal—Cable and Adapter

 

 

Table A-2 Console Port to ASCII Terminal—Cable Pinouts (RJ-45 to DB-25)

Console Port
(DCE, RJ-45)
RJ-45-to-RJ-45
Rollover Cable
RJ-45-to-DB-25
Adapter “TERMINAL”
Terminal Port
(DTE, DB-25)
Signal
RJ-45 Pin
RJ-45 Pin
RJ-45 Pin
DB-25 Pin
Signal

RTS

12

8

8

5

CTS

DTR

2

7

7

6

DSR

TxD

3

6

6

3

RxD

GND

4

5

5

7

GND

GND

5

4

4

7

GND

RxD

6

3

3

2

TxD

DSR

7

2

2

20

DTR

CTS

81

1

1

4

RTS

2.Pin 1 is connected to pin 8 inside the Cisco VG350 Voice Gateway.

Auxiliary Port to Modem

Figure A-3 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-25 male DCE adapter (labeled MODEM); Table A-3 lists the pinouts.

Figure A-3 Auxiliary Port to Modem—Cable and Adapter

 

 

Table A-3 Auxiliary Port to Modem—Cable Pinouts (RJ-45 to DB-25)

Auxiliary Port
(DTE, RJ-45)
RJ-45-to-RJ-45
Rollover Cable
RJ-45-to-DB-25
Adapter “MODEM”
Modem Port
(DCE, DB-25)
Signal
RJ-45 Pin
RJ-45 Pin
RJ-45 Pin
DB-25 Pin
Signal

RTS

1

8

8

4

RTS

DTR

2

7

7

20

DTR

TxD

3

6

6

2

TxD

GND

4

5

5

7

GND

GND

5

4

4

7

GND

RxD

6

3

3

3

RxD

DSR

7

2

2

8

DCD

CTS

8

1

1

5

CTS

Alternative Connections to Terminal and Modem

Your Cisco VG350 Voice Gateway ships with an RJ-45-to-RJ-45 rollover cable and two adapters for connection to a PC, a terminal, or a modem. If you want to use an RJ-45 straight-through cable or other adapters, see Table A-4 for usable cable and adapter combinations.

 

Table A-4 Alternative Terminal and Modem Connections

Cisco VG350 Port Connection
RJ-45 Cable Type
Adapter

Console port to PC

Straight-through

DCE, DB-9 female

Auxiliary port to modem

Rollover3

DCE4, DB-25, male

Straight-through

DTE2, DB-25, male

3.An octal cable or RJ-45 breakout cable is equivalent to a rollover cable.

4.Modify the DB-25 adapter by removing the wire in pin 6 and placing it in the pin 8 position.

Gigabit Ethernet Port Pinouts (RJ-45)

Figure A-4 shows the RJ-45 connector wiring for the Gigabit Ethernet cable; Figure A-4 lists the pinouts.


Note Pinout shown is for category 3, 4, or 5 10/100BASE-T connection to an Gigabit Ethernet switch.


Figure A-4 RJ-45 Connector Wiring

 

 

Table A-5 Gigabit Ethernet Port Pinouts (RJ-45)

Pin5
Signal

1

TX+

2

TX–

3

RX+

4

5

6

RX–

7

8

5.Any pin not referenced is not connected.

Analog Voice Multiport Pinouts (RJ-21X/CA21A)

Figure A-5 shows the RJ-21 connector wiring for the cable used for the multiport analog voice interface.

Figure A-5 RJ-21 Connector Wiring

 

Table A-6 lists the pinouts for the RJ-21 connector.

 

Table A-6 RJ-21 Connector Pinouts

Port Number
Connector Pin Number
Signal
Port Number
Connector Pin Number
Signal

1

1
26

Ring
Tip

13

13
38

Ring
Tip

2

2
27

Ring
Tip

14

14
39

Ring
Tip

3

3
28

Ring
Tip

15

15
40

Ring
Tip

4

4
29

Ring
Tip

16

16
41

Ring
Tip

5

5
30

Ring
Tip

17

17
42

Ring
Tip

6

6
31

Ring
Tip

18

18
43

Ring
Tip

7

7
32

Ring
Tip

19

19
44

Ring
Tip

8

8
33

Ring
Tip

20

20
45

Ring
Tip

9

9
34

Ring
Tip

21

21
46

Ring
Tip

10

10
35

Ring
Tip

22

22
47

Ring
Tip

11

11
36

Ring
Tip

23

23
48

Ring
Tip

12

12
37

Ring
Tip

24

24
49

Ring
Tip

25, 50, 51, 52

GND