Serial port Module Installation

This chapter introduce how to install and  connect the  serial port  interface module , including the following sections:

 

Normal Introduction to the Connection

DTE&DCE equipment

Interface standard of serial port  module

 Distance restriction of serial line  connection

Connection of async serial port module and async equipment

  4/8 async/sync serial port  module

  Sync /async serial interface  and all cable

16-port asynchronous port module

 Async serial line interface DB68  and all cables

 

 

Normal Introduction  to serial line  Connection

Our company supplies the following serial port modules :

1.      8-port async port module NM-8ASY

2.      16-port async port module NM-16ASY

3.      4-port high-speed (<=2M) common serial port  module NM-4T

4.      8-port low-speed (<=8K) common serial port module NM-8A/S

Please confirm the following case before using the serial port network module:

1.      The type of the equipment that you connect is DCE or DTE .

2.      The connecter you used is with hole or with pin

3.      The standard of the telephone signal that you choose ;V28 or v35

DTE &DCE Equipment

   The equipment that connect to the module can be considered as DCE or DTE . One DCE equipment supply the  telephone signal to make it connect to the module ,while DTE equipment does not supply the time signal . DTE equipment always connect with DCE equipment . Please refer the equipment pile to confirm it is the DEC or DTE. If you are not very clear about the type of the equipment , please refer to the following table

 

Equipment type

typical equipment

DTE

pin

terminal

PC

DCE

hole

Modem

CSU/DSU

Multiplexer

CSU/DSU =channel  service  unit / data  service  unit

 

Interface standard of serial port module

The physical protocols supported by serial port module includ:V.24/V.28,RS232-D,X.21bis,V.35,RS422/RS449.The user can choose relevant interface cable to connect to the equipment.

Distance restriction of serial line connection

Serial port has its communication distance restriction under any condition.The lower the communication speed ,the further the distance.All serial port signals have distance restriction,and the signal will weaken or even lost if they are over the distance restriction.The following gives the speeds and distance restriction of different type interfaces.

Speed&distance restriction of RS232 cable:

baud rate(bps)

max distance(meter)

2400

60

4800

30

9600

15

19200

15

38400

15

57600

8

64000

8

115200

8

 

Speed and distance of V.35cable:

baud rate(bps)

max distance(meter)

2400

1250

4800

625

9600

312

19200

156

38400

78

56000

31

64000

20

2M

12

Connection of async serial port module&async equipment

One async serial port module supplies 1 or 2 68 pin socket connector.Every socket connector supplies 8 RS232-D tie-in by a 8-in-1 cable:

The connecting picture of async serial port module &async equipment is shown as the following:

 

4-port/8-port async/sync serial port module

4-port/8-port async/sync serial port module can be considered as DTE&DCE. The users can choose to use according to the soft configuration.4-port/8-port async/sync serial port module (high speed) is as the follows:

Interface properties

Description

Synchronous

Asynchronous

Connector

4 rows, 60 pins DB60

4 rows, 60 pins DB60

Cable

DB60 to V28 cables

DB60 to V35 cables

DB60 to V28 cables

interface standard

V.28

V35

V.28

Max transmission speed (bps)

64K

2M

1152K

protocols Supported

X.25X.32FRHDLCSLIPPPPSDLC

PPP, SLIP

  8-port async/sync serial port module (low speed) is shown in the following:

Interface properties

Description

Synchronous

Asynchronous

Connector

4 rows, 60 pins DB60

4 rows, 60 pins DB60

Cable

DB60 to V28 cables

DB60 to V35 cables

DB60 to V28 cables

interface standard

V.24/V.28(EIA/TIA-232)

V35

V.24/V.28(EIA/TIA-232)

Max transmission speed (bps)

64K

128K

1152K

protocols Supported

X.25X.32FRHDLCSLIPPPPSDLC

PPP, SLIP

  

Outside connecting picture of async/sync serial port module & outside equipment is as the following:

 

 

4-port high speed(<=2M)common serial port module(NM-4T)

 

4-port high speed(<=2M)common serial port module lamp is as the follows:

 

LED

description

TXD0

indicate serial port0 is sending

RXD0

indicate serial port0 is accepting

TXD1

indicate serial port1 is sending

RXD1

indicate serial port1 is accepting

TXD2

indicate serial port2is sending

RXD2

indicate serial port2 is accepting

TXD3

indicate serial port3is sending

RXD3

indicate serial port3 is accepting

 

8-port async port  module (see the following picture)

 

8-port async port module(PB-SER-8-2M-V2835)lamp :

 

LED

description

TXD0

indicate serial port0 is sending

RXD0

indicate serial port0 is accepting

TXD1

indicate serial port1 is sending

RXD1

indicate serial port1 is accepting

TXD2

indicate serial port2is sending

RXD2

indicate serial port2 is accepting

TXD3

indicate serial port3is sending

RXD3

indicate serial port3 is accepting

TXD4

indicate serial port4 is sending

RXD4

indicate serial port4 is accepting

TXD5

indicate serial port5 is sending

RXD5

indicate serial port5 is accepting

TXD6

indicate serial port6is sending

RXD6

indicate serial port6 is accepting

TXD7

indicate serial port7is sending

RXD7

indicate serial port7 is accepting

Async/sync serial port interface DB60&all cables

4-port/8-port serial port module uses 60-pin socket&DB60 interface.One DB60 interface supports two async/sync serial ports.

The definition of serial port DB60 pins are as follows:

Number

 

name

Brief note

3

Second group carrier detect

J1CD

DTE DCEV28&V35

4

Second group data circuit devices ready

J1DSR

DTE DCEV28&V35

5

Second group permitted to transmit

J1CTS

DTE DCEV28&V35

6

Second group data receiving

J1RxD

DTE DCEV28

7

Second group interface transmit clock

J1TxC

DTE DCEV28

8

Second group interface receiving timer

J1RxC

DTE DCEV28

9

Second group internal timer output

CLK232-1

DTE DCEV28

10

Second group internal timer output

CLK232-1

DTE DCEV28

11

Second group data transmittance

J1TXD

DTE DCEV28

12

Second group request transmittance

J1RTS

DTE DCEV28&V35

13

Second group data terminal ready

J1DTR

DTE DCEV28&V35

15

Signal grounded

GND

DTE and DCE public signal grounded

17

First group sends data positive phase

TXD0+~

DTE DCEV35

18

First group sends data negative phase

TXD0-~

DTE DCEV35

19

First group internal timer outputs positive phase

ECLK0A+~

DTE DCEV35

20

First group internal timer outputs negative phase

ECLK0A-~

DTE DCEV35

21

First group internal timer outputs positive phase

ECLK0B+~

DTE DCEV35

22

irst group internal timer outputs negative phase

ECLK0B-~

DTE DCEV35

23

First group sends positive phase of timer

TXC0+

DTE DCEV35

24

First group sends negative phase of timer

TXC0-

DTE DCEV35

25

First group receives positive phase of timer

RXC0+

DTE DCEV35

26

First group receives negative phase of timer

RXC0-

DTE DCEV35

27

First group receive data positive phase

RXD0+

DTE DCEV35

28

First group receives data negative phase

RXD0-

DTE DCEV35

29

Second group internal timer outputs positive phase

ECLK1B+~

DTE DCEV35

30

Second group internal timer outputs negative phase

ECLK1B-~

DTE DCEV35

31

Second group internal timer outputs negative phase

ECLK1A-~

DTE DCEV35

32

Second group internal timer outputs positive phase

ECLK1A+~

DTE DCEV35

33

First group carrier detect

J0CD

DTE DCEV28&V35

34

First group data circuit devices ready

J0DSR

DTE DCEV28&V35

35

First group permitted to transmit

J0CTS

DTE DCEV28&V35

36

First group data receiving

J0RXD

DTE DCEV28

37

First group interface transmitting clock

J0TXC

DTE DCEV28

38

First group interface receiving clock

J0RXC

DTE DCEV28

39

First group internal clock output

CLK232-0

DTE DCEV28

40

First group internal clock output

CLK232-0

DTE DCEV28

41

First group data transmitted

J0TXD

DTE DCEV28

42

First group requests transmitting

J0RTS

DTE DCEV28&V35

43

First group data terminal ready

J0DTR

DTE DCEV28&V35

45

Signal grounded

GND

DTE and DCE public signal grounded

47

Second group sends data positive phase

TXD1+~

DTE DCEV35

48

Signal grounded

GND

DTE and DCE public signal grounded

49

First group interface mode selection

PORTMODE0

used to choose V28 or V35

50

Second group sends data negative phase

TXD1-~

DTE DCEV35

51

Signal grounded

GND

DTE and DCE public signal grounded

53

Second group transmits positive phase of clock

TXC1+

DTE DCEV35

54

Second group transmits negative phase of clock

TXC1-

DTE DCEV35

55

Second group receives positive phase of clock

RXC1+

DTE DCEV35

56

Second group receives negative  phase of clock

RXC1-

DTE DCEV35

57

Second group sends data positive phase

RXD1+

DTE DCEV35

58

Second group sends data negative phase

RXD1-

DTE DCEV35

60

Second group interface mode selection

PORTMODE1

used to choose V28 or V35

 

The 1/2 cable used to connect DB60 async/sync serial port and outside equipment is three kinds:V.28 2-in-1 cable with the number RCLS101;V.35 1/2 cable with the number RLS0111;V.35 2-in-1 cable and V.28&V.35cable  with the number RCLS002.

  

V.28  2-in-1  cable RCLS101 outside picture:


        V.35 2-in-1 cable with the number RLS0111 outside picture:

 

 

V.35 2-in-1 V.28&V.35 cable with the number RCLS002  outside picture:

 

 

16-port async module

8-port/16-port async port module performance:

interface performance

async

lug

68 pin2 line high density socket connectorDB68

cable

DB688-in-1 cable

interface standard

V.28

max baud rate(bps)

115.2K

protocol supported

PPP、SLIP

 

 

8-port async port module (see the following picture)

 

 16-port async port module(see the following picture)

 

Async serial line interface DB68 &all cable

8-port/16-port serial interface module uses 68-pin socket DB68.One DB68 interface supports 8 serial ports.

Serial port DB68 pin is as the following

number

name

english   name

note

1

first group data line preparing

DSR0

DTE ← DCE

2

first group require to send

RTS0

DTE → DCE

3

first group data send

TXD0

DTE → DCE

4

signal ground

GND

DTE &DCE ,PSG

5

first group carrier wave test

DCD0

DTE ← DCE

6

second group require to send

RTS1

DTE → DCE

7

second group data send

TXD1

DTE → DCE

8

second group data line preparing

DSR1

DTE ← DCE

9

second group carrier wave test

DCD1

DTE ← DCE

10

third group require to send

RTS2

DTE → DCE

11

third  group data send

TXD2

DTE → DCE

12

third group data line preparing

DSR2

DTE ← DCE

13

third group carrier wave test

DCD2

DTE ← DCE

14

forth group require to send

RTS3

DTE → DCE

15

forth  group data send

TXD3

DTE → DCE

16

forth group data line preparing

DSR3

DTE ← DCE

17

forth group carrier wave test

DCD3

DTE ← DCE

18

fifth group require to send

RTS4

DTE → DCE

19

fifth group data send

TXD4

DTE → DCE

20

fifth group data line preparing

DSR4

DTE ← DCE

21

fifth group carrier wave test

DCD4

DTE ← DCE

22

 sixth group require to send

RTS5

DTE → DCE

23

sixth  group data send

TXD5

DTE → DCE

24

sixth group data line preparing

DSR5

DTE ← DCE

25

sixth group carrier wave test

DCD5

DTE ← DCE

26

 seventh group require to send

RTS6

DTE → DCE

27

 seventh  group data send

TXD6

DTE → DCE

28

 seventh group require to send

DSR6

DTE ← DCE

29

 seventh  group carrier wave test

DCD6

DTE ← DCE

30

 eighth group require to send

RTS7

DTE → DCE

31

eighth  group data send

TXD7

DTE → DCE

32

SG

GND

DTE &DCE ,PSG

33

eighth group require to send

DCD7

DTE ← DCE

34

eighth group carrier wave test

DSR7

DTE ← DCE

35

SG

GND

DTE &DCE ,PSG

36

first group terminal preparing

DTR0

DTE → DCE

37

SG

GND

DTE &DCE ,PSG

38

first group data accepting

RXD0

DTE ← DCE

39

first group permit to send

CTS0

DTE ← DCE

40

second data terminal preparing

DTR1

DTE → DCE

41

SG

GND

DTE &DCE ,PSG

42

second group data accepting

RXD1

DTE ← DCE

43

second group permit to send

CTS1

DTE ← DCE

44

third data terminal preparing

DTR2

DTE → DCE

45

SG

GND

DTE &DCE ,PSG

46

third group data accepting

RXD2

DTE ← DCE

47

third group permit to send

CTS2

DTE ← DCE

48

forth  data terminal preparing

DTR3

DTE → DCE

49

SG

GND

DTE &DCE ,PSG

50

forth  group data accepting

RXD3

DTE ← DCE

51

forth  group permit to send

CTS3

DTE ← DCE

52

fifth data terminal preparing

DTR4

DTE → DCE

53

SG

GND

DTE &DCE ,PSG

54

fifth group data accepting

RXD4

DTE ← DCE

55

fifth group permit to send

CTS4

DTE ← DCE

56

sixth data terminal preparing

DTR5

DTE → DCE

57

SG

GND

DTE &DCE ,PSG

58

sixth group data accepting

RXD5

DTE ← DCE

59

sixth group permit to send

CTS5

DTE ← DCE

60

seventh data terminal preparing

DTR6

DTE → DCE

61

SG

GND

DTE &DCE ,PSG

62

seventh group data accepting

RXD6

DTE ← DCE

63

seventh group permit to send

CTS6

DTE ← DCE

64

eighth data terminal preparing

DTR7

DTE → DCE

65

SG

GND

DTE &DCE ,PSG

66

eighth group data accepting

RXD7

DTE DCE

67

eighth group permit to send

CTS7

DTE DCE

68

SG

GND

DTE &DCE ,PSG

  

The 8-in-1 cable used to connect DB68 async serial port and outside equipment with the number RLA0008 is shown in the following picture:

The inside connecting picture of 8-in-1  RJ45 cable with the number RLA4508 is as the following:.