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
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
Equipment type |
|
typical equipment |
DTE |
pin |
terminal PC |
DCE |
|
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 |
V.35 |
V.28 |
Max
transmission speed (bps) |
64K |
2M |
115.2K |
protocols
Supported |
X.25、X.32、FR、HDLC、SLIP、PPP、SDLC |
PPP,
SLIP |
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) |
V.35 |
V.24/V.28(EIA/TIA-232) |
Max
transmission speed (bps) |
64K |
128K |
115.2K |
protocols
Supported |
X.25、X.32、FR、HDLC、SLIP、PPP、SDLC |
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:
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 ← DCE,V28&V35 |
4 |
Second group data circuit devices ready |
J1DSR |
DTE ← DCE,V28&V35 |
5 |
Second group permitted to transmit |
J1CTS |
DTE ← DCE,V28&V35 |
6 |
Second group data receiving |
J1RxD |
DTE ← DCE,V28 |
7 |
Second group interface transmit clock |
J1TxC |
DTE ← DCE,V28 |
8 |
Second group interface receiving timer |
J1RxC |
DTE ← DCE,V28 |
9 |
Second group internal timer output |
CLK232-1 |
DTE → DCE,V28 |
10 |
Second group internal timer output |
CLK232-1 |
DTE → DCE,V28 |
11 |
Second group data transmittance |
J1TXD |
DTE → DCE,V28 |
12 |
Second group request transmittance |
J1RTS |
DTE → DCE,V28&V35 |
13 |
Second group data terminal ready |
J1DTR |
DTE → DCE,V28&V35 |
15 |
Signal grounded |
GND |
DTE and DCE public signal grounded |
17 |
First group sends data positive phase |
TXD0+~ |
DTE → DCE,V35 |
18 |
First group sends data negative phase |
TXD0-~ |
DTE → DCE,V35 |
19 |
First group internal timer outputs positive phase |
ECLK0A+~ |
DTE → DCE,V35 |
20 |
First group internal timer outputs negative phase |
ECLK0A-~ |
DTE → DCE,V35 |
21 |
First group internal timer outputs positive phase |
ECLK0B+~ |
DTE → DCE,V35 |
22 |
irst group internal timer outputs negative phase |
ECLK0B-~ |
DTE → DCE,V35 |
23 |
First group sends positive phase of timer |
TXC0+ |
DTE ← DCE,V35 |
24 |
First group sends negative phase of timer |
TXC0- |
DTE ← DCE,V35 |
25 |
First group receives positive phase of timer |
RXC0+ |
DTE ← DCE,V35 |
26 |
First group receives negative phase of timer |
RXC0- |
DTE ← DCE,V35 |
27 |
First group receive data positive phase |
RXD0+ |
DTE ← DCE,V35 |
28 |
First group receives data negative phase |
RXD0- |
DTE ← DCE,V35 |
29 |
Second group internal timer outputs positive phase |
ECLK1B+~ |
DTE → DCE,V35 |
30 |
Second group internal timer outputs negative phase |
ECLK1B-~ |
DTE → DCE,V35 |
31 |
Second group internal timer outputs negative phase |
ECLK1A-~ |
DTE → DCE,V35 |
32 |
Second group internal timer outputs positive phase |
ECLK1A+~ |
DTE → DCE,V35 |
33 |
First group carrier detect |
J0CD |
DTE ← DCE,V28&V35 |
34 |
First group data circuit devices ready |
J0DSR |
DTE ← DCE,V28&V35 |
35 |
First group permitted to transmit |
J0CTS |
DTE ← DCE,V28&V35 |
36 |
First group data receiving |
J0RXD |
DTE ← DCE,V28 |
37 |
First group interface transmitting clock |
J0TXC |
DTE ← DCE,V28 |
38 |
First group interface receiving clock |
J0RXC |
DTE ← DCE,V28 |
39 |
First group internal clock output |
CLK232-0 |
DTE → DCE,V28 |
40 |
First group internal clock output |
CLK232-0 |
DTE → DCE,V28 |
41 |
First group data transmitted |
J0TXD |
DTE → DCE,V28 |
42 |
First group requests transmitting |
J0RTS |
DTE → DCE,V28&V35 |
43 |
First group data terminal ready |
J0DTR |
DTE → DCE,V28&V35 |
45 |
Signal grounded |
GND |
DTE and DCE public signal grounded |
47 |
Second group sends data positive phase |
TXD1+~ |
DTE → DCE,V35 |
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 → DCE,V35 |
51 |
Signal grounded |
GND |
DTE and DCE public signal grounded |
53 |
Second group transmits positive phase of clock |
TXC1+ |
DTE ← DCE,V35 |
54 |
Second group transmits negative phase of clock |
TXC1- |
DTE ← DCE,V35 |
55 |
Second group receives positive phase of clock |
RXC1+ |
DTE ← DCE,V35 |
56 |
Second group receives negative phase of clock |
RXC1- |
DTE ← DCE,V35 |
57 |
Second group sends data positive phase |
RXD1+ |
DTE ← DCE,V35 |
58 |
Second group sends data negative phase |
RXD1- |
DTE ← DCE,V35 |
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 V.28&V.35 cable with the number RCLS002 outside picture:
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:.