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Cable and Ethernet Specifications        D


This appendix gives specifications for the following:

Console Cable

 Table D-1 gives pinout information for a console cable with RJ-45 and DB-25 connectors.

Table D-1 Console Cable

PortMaster Office Router

Serial Port (S0)

 

PC or Terminal

Serial Port

RJ-45

Name

Definition

Direction

DB-25

(DTE)

Signal

1

RTS

Request to Send

Output

5

CTS

2

DTR

Data Terminal Ready

Output

81

DCD

3

TXD

Transmit Data

Output

3

RXD

4

GND

Signal Ground

 

NC2

 

5

GND

Signal Ground

 

7

GND

6

RXD

Receive Data

Input

2

TXD

7

DCD

Data Carrier Detect

Input

20

DTR

8

CTS

Clear to Send

Input

4

RTS

NC2

 

Data Set Ready

 

61

DSR

1 Pins 8 and 6 in the DB-25 connectors are connected internally.

2 Not connected.

Modem Cable

 Table D-2 gives pinout information for a modem cable with RJ-45 and DB-25 connectors.

Table D-2 Modem Cable

PortMaster Office Router

S0 (Serial) Port

 

External Modem

RJ-45

Name

Definition

Direction

DB-25

(DCE)

1

RTS

Request to Send

Output

4

2

DTR

Data Terminal Ready

Output

20

3

TXD

Transmit Data

Output

2

4

GND

Signal Ground

 

NC

5

GND

Signal Ground

 

7

6

RXD

Receive Data

Input

3

7

DCD

Data Carrier Detect

Input

8

8

CTS

Clear to Send

Input

5

V.35 Cable

 Table D-3 gives pinout information for a V.35 cable with DB-25 and V.35 connectors. Pins not listed have no connection.

Table D-3 Synchronous V.35 Cable

DB-25 Pin

Name

V.35 Pin

Definition

Direction

2

TXD

P

Transmit Data

Output

14

TXD-

S

 

 

3

RXD

R

Receive Data

Input

16

RXD-

T

 

 

4

RTS

C

Request to Send

Output

5

CTS

D

Clear to Send

Input

6

DSR

E

Data Set Ready

Input

7

SGND

B

Signal Ground

 

8

DCD

F

Data Carrier Detect

Input

15

ST

Y

Send Timing

Input

13

ST-

AA

 

 

17

RT

V

Receive Timing

Input

19

RT-

X

 

 

20

DTR

H

Data Terminal Ready

Output

X.21 Cable

 Table D-4 gives pinout information for an X.21 cable with DB-25 and DB-15 connectors. Pins not listed have no connection.

Table D-4 Synchronous X.21 Cable

PortMaster
Port W1

V.35
DB-25 Pin

Name

Definition

Direction

X.21

DB-15

Pin

Name

7

B

SGND

Signal Ground

 

8

SGND

 

 

 

 

 

10

Control B

4

C

RTS

Request to Send

Output

3

Control A

5

D

CTS

Clear to Send

Input

 

 

8

F

CD

Carrier Detect

Input

5

Indicate A

3

R

RXA

Receive Data

Input

4

RXA

16

T

RXB

Receive Data

Input

11

RXB

17

V

RX CLKA

Receive Timing

Input

6

CLKA

15

Y

TX CLKA

Send Timing

Input

 

 

19

X

RX CLKB

Receive Timing

Input

13

CLKB

13

AA

TX CLKB

Send Timing

Input

 

 

2

P

TXD A

Transmit Data

Output

2

TXA

14

S

TXD B

Transmit Data

Output

9

TXA

RS-530 Cable

 Table D-5 gives pinout information for a synchronous RS-530 cable with DB-25 connectors. Pins not listed have no connection.

Table D-5 Synchronous RS-530 Cable

PortMaster
Port W1

RS-530

CSU/DSU Pin

Name

Definition

Direction

2

2

TXD

Transmit Data

Output

14

14

TXD-

 

 

3

3

RXD

Receive Data

Input

16

16

RXD-

 

 

4

4

RTS

Request to Send

Output

5

5

CTS

Clear to Send

Input

6

6

DSR

Data Set Ready

Input

7

7

SGND

Signal Ground

 

8

8

DCD

Data Carrier Detect

Input

15

15

ST

Send Timing

Input

13

12

ST-

 

 

17

17

RT

Receive Timing

Input

19

9

RT-

 

 

20

20

DTR

Data Terminal Ready

Output

Category 5 Twisted Pair Cable for the S/T Interface

 Table D-6 gives pinout information for an 8-pin, category 5 twisted pair cable with
RJ-45 connectors for the S/T interface. Pins not listed have no connection.
Table D-6 Category 5 Cable for the S/T Interface

RJ-45 Pin

Name

Definition

Direction

3

TXD

Transmit Data

Output

6

TXD-

 

 

4

RXD

Receive Data

Input

5

RXD-

 

 

Category 5 Twisted Pair Cable for the U Interface

 Table D-7 gives pinout information for an 8-pin, category 5 twisted pair cable with
RJ-45 connectors for the U interface. Pins not listed have no connection.

Table D-7 Category 5 Cable for the U Interface

ISDN/U Port

Direction

4

Input/Output

5

Input/Output

Ethernet Specifications

 Table D-8 gives specifications for the 10Mbps baseband IEEE 802.3-compatible Ethernet interface.

Table D-8 Ethernet Cables

Ethernet

Type

Connector

Type

Cable

Type

Transmission

Distance

10Base5 (AUI)

15-pin
Dec-Intel-Xerox (DIX) for connection to external transceiver

RG-11
50-ohm coaxial

Trunk segment-1,640 feet (500m) maximum
Transceiver cable-164 feet (50m) maximum
Network trunk-8,200 feet (2,500m) maximum

10BaseT (RJ-45)

RJ-45 for 10BaseT

Unshielded twisted pair

Hub distance-328 feet (100m) maximum
Repeaters-four maximum



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