3One data 485P User manual

MODEL485P

RS-232 to RS-485/422 Converter

User manual

Shenzhen 3onedata Technology Co., Ltd

Tel: +86-755-26702668 Fax: +86-755-26703485

www.3onedata.com

【Introduction】

Model485P is a high performance, more function RS-232/485/422

interface converter. The product configure out connect power,

optic-electrical isolation more than 2.5KV. Have small volume, far

transmission distance, high rate, steadily performance and so on. It is

abroad used in industry control system, It is an interface convert

product that have good between performance to price. Adopt itself

adapt interface technique, no use for setup switch.

【Packing list】

Please check the packaging and accessories by your first using.

1. Model485P×1

2. 9VDC power adapter ×1

3. Separate terminal block(DB9F to 5 bit, optional) ×1

4. User manual ×1

5. Certificate of quality ⅹ1

6. Warranty card ⅹ1

Please inform us or our distributor if your equipments have been

damaged or lost any accessories, we will try our best to satisfy you.

【Feature】

1. 9VDC power input, 2500V optical isolation

2. Plug-and-Play (hot-pluggable, data format auto-sensing &

self-adjusting)

3. Data direction auto-turnaround, no flow control is necessary

4. 1500W surge protection, 15KV ESD protection

5. 1800m transfer distance (115200bps)

6. RS-485/RS-422 connector RJ45, DB9M or 5 bit terminal block

【Pinout Configuration】

RS-485 port adopt DB9M (DB9F to 3 bit terminal block), RS-232

port adopt DB9F (Female), 9VDC power supply Input.

DB9F (Female/hole) DB9M (Male)

RJ45 (Female) for RS-485/422:

DB9F to 5 bit terminal block:

T+/485+ RS-422 send+/485+

T-/485- RS-422 send-/485-

GND Signal ground

R+ RS-422 receive+

R- RS-422 receive-

【LED Indicator】

RS-232 (DB9F)

TXD

RXD

GND

RS-485/422 (DB9M)

T-/D-

T+/D+

R+

R-

GND

PIN#

7,8

RS485

D+

D-

GND

RS422

T+

T-

R+

R-

GND

Power

Red, Power supply indication

On: power joined; Off: no power connect

RxD

Green light, RS-485/422 interface receive data point out

On: There are data that are received; Off: no data receive

TxD

Yellow light, RS-485/422 interface send data um instruct,

On: data setting; Off: no data setting

1 8

【Dimension】

【Specification】

Standards: EIA RS-232C, RS-485, RS422 standard

RS-232 signal: TX, RX, GND

RS-422 signal: T+, T-, R+, R-, GND

RS-485 signal: D+, D-, GND

Working mode: Asynchronism, point to point or multi point, 2 wire

half-duplex, 4 wire full duplex

Baud rate: 300~115200bps, auto test serial signal rate detect signal

speed automatically, zero delay time

Flow control: Data direction auto-turnaround, no flow control is

required

Transfer distance: RS-485/422 side: 1.8Km, 115200bps

RS-232 side: no less than 5m

Max number of drops: 128 nodes

Optical isolation: 2500V

Port protect: 600W surge protection, 15KV ESD protection

Power

Power input: 9VDC power input

Consumption: Static less than 120mA, dynamic less than 350mA

Environment

Operating temperature: -20°C to 60°C

Storage temperature: -25°C to 85°C

Humidity: 5% to 95%(no condensation)

Appearance

Dimensions: 93.0mm×62.4mm×22.0mm

Material: Iron (shell)

Color: White

Weight: 200g

Warranty: 3 years

Approvals: FCC, CE, RoHS approvals

【Applications】

1. RS232 to RS485 mode option(DB9):

Figure 1: Extending the RS232 data distance in RS485 mode

Figure 2: Master/Slave multi-drop configuration in RS485 mode

2. RS232 to RS422 mode option(DB9):

Figure 3: Extending the RS232 data distance in RS422 mode

Figure 4: Master/Slave multi-drop configuration in RS422 mode

Point to point communication, industrial gathering and disperse

distribution system, all kinds of remote control and measurement

system, POS, banking, insurance, stocking, canteen meal selling

system, transport billing system, all kinds of PLC, digital power

meter, gas meter.

【Troubleshooting instructions】

1. RS232 to RS485 mode option:

Perform a loop back test on a pair of Model485P converters. Using

figure 1, attach the two Model 485Ps to two serial ports on a PC and

using two instances of a HyperTerminal program send a character

from one and see if it echoes to the other. This will test both transmit

and receive functions of the converter in RS485 mode.

2. RS232 to RS422 mode option:

Perform a loop back test on one Model485P converter. Tie signals T+

to R+ and T- to R- of the Model485P. Attach the converter to the

serial port on a PC and using HyperTerminal send a character from

one and see if it echoes to the other. This will test both transmit and

receive functions of the converter in RS422 mode.

Certifications:

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