EP-132. Serial To Ethernet Converter INSTRUCTION MANUAL. A-NeuVideo.com Frisco, Texas (469) AUDIO / VIDEO MANUFACTURER

Transcription

1 EP-132 INSTRUCTION MANUAL Serial To Ethernet Converter A-NeuVideo.com Frisco, Texas (469) AUDIO / VIDEO MANUFACTURER

2 SAFETY INFORMATION 1. To ensure the best results from this product, please read this manual and all other documentation before operating your equipment. Retain all documentation for future reference. 2. Follow all instructions printed on unit chassis for proper operation. 3. To reduce the risk of fire, do not spill water or other liquids into or on the unit, or operate the unit while standing in liquid. 4. Make sure power outlets conform to the power requirements listed on the back of the unit. Keep unit protected from rain, water and excessive moisture. 5. Do not attempt to clean the unit with chemical solvents or aerosol cleaners, as this may damage the unit. Dust with a clean dry cloth. 6. Do not use the unit if the electrical power cord is frayed or broken. The power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords and plugs, convenience receptacles, and the point where they exit from the appliance. 7. Do not force switched or external connections in any way. They should all connect easily, without needing to be forced. 8. Always operate the unit with the AC ground wire connected to the electrical system ground. Precautions should be taken so that the means of grounding of a piece of equipment is not defeated. 9. AC voltage must be correct and the same as that printed on the rear of the unit. Damage caused by connection to improper AC voltage is not covered by any warranty. 10. Turn power off and disconnect unit from AC current before making connections. 11. Never hold a power switch in the ON position. 12. This unit should be installed in a cool dry place, away from sources of excessive heat, vibration, dust, moisture and cold. Do not use the unit near stoves, heat registers, radiators, or other heat producing devices. 13. Do not block fan intake or exhaust ports. Do not operate equipment on a surface or in an environment which may impede the normal flow of air around the unit, such as a bed, rug, carpet, or completely enclosed rack. If the unit is used in an extremely dusty or smoky environment, the unit should be periodically blown free of foreign dust and matter. 14. To reduce the risk of electric shock, do not remove the cover. There are no user serviceable parts inside. Refer all servicing to qualified service personnel. There are no user serviceable parts inside. 15. When moving the unit, disconnect input ports first, then remove the power cable; finally, disconnect the interconnecting cables to other devices. 16. Do not drive the inputs with a signal level greater than that required to drive equipment to full output. 17. The equipment power cord should be unplugged from the outlet when left unused for a long period of time. 18. Save the carton and packing material even if the equipment has arrived in good condition. Should you ever need to ship the unit, use only the original factory packing. 19. Service Information Equipment should be serviced by qualified service personnel when: A. The power supply cord or the plug has been damaged. B. Objects have fallen, or liquid has been spilled into the equipment. C. The equipment has been exposed to rain. D. The equipment does not appear to operate normally, or exhibits a marked change in performance. E. The equipment has been dropped, or the enclosure damaged. THIS SAFETY INFORMATION IS OF A GENERAL NATURE AND MAY BE SUPERSEDED BY INSTRUCTIONS CONTAINED WITHIN THIS MANUAL.

3 CONTENTS INTRODUCTION & PACKAGE CONTENTS...1 BLOCK DIAGRAM / DOWNLOAD LINKS...2 FEATURES & SPECIFICATIONS...3 CONVERTER DESCRIPTION...4 WIRING ARCHITECTURE...6 CONVERTER CONFIGURATION...7 WEB CONSOLE CONFIGURATION...9 SELF-TESTING...13 APPENDIX - PIN OUTS & CABLE WIRING...16 Dear Customer Thank you for purchasing this product. For optimum performance and safety, please read these instructions carefully before connecting, operating or adjusting this product. Please keep this manual for future reference. INTRODUCTION The EP-132 TCP/IP converter is designed to make your serial devices internet ready instantly. The EP-132 Series TCP/IP converter is the ideal choice for connecting your RS-232 or RS- 422/485 serial devices such as PLCs, meters and sensors to an IP-based Ethernet LAN, making it possible for your software to access serial devices anywhere and anytime over a local LAN or internet. The EP-132 converter ensures compatibility to network software that uses standard network API (Winsock or BSD Sockets) by providing TCP Server Mode, TCP Client Mode and UDP Mode. The EP-132 Virtual COM driver, the software that works with COM port, can be set up to work over a TCP/IP network in no time. This excellent feature preserves your software investment and lets you enjoy the benefits of networking your serial devices instantly. This converter supports manual configuration via the handy web browser console and many protocols including TCP, IP, UDP, HTTP, DHCP, ICMP and ARP. It is the best solution to network your serial devices. This product has a 3 year warranty. PACKAGE CONTENTS Before attempting to use this unit, please check the packaging and make sure the following items are contained in the shipping carton: EP-132 Converter Power Adaptor (9VDC 500mA) North American Plug Users Guide SAFETY PRECAUTIONS TABLE OF CONTENTS Please read all instructions before attempting to unpack, install or operate this equipment and before connecting the power supply. Please keep the following in mind as you unpack and install this equipment: Always follow basic safety precautions to reduce the risk of fire, electrical shock and injury to persons. To prevent fire or shock hazard, do not expose the unit to rain, moisture or install this product near water. Never spill liquid of any kind on or into this product. Never push an object of any kind into this product through any openings or empty slots in the unit, as you may damage parts inside the unit. Do not attach the power supply cabling to building surfaces. Use only the supplied power supply unit (PSU). Do not use the PSU if it is damaged. Do not allow anything to rest on the power cabling or allow any weight to be placed upon it or any person walk on it. To protect the unit from overheating, do not block any vents or openings in the unit housing that provide ventilation and allow for sufficient space for air to circulate around the unit. DISCLAIMERS The information in this manual has been carefully checked and is believed to be accurate. We assume no responsibility for any infringements of patents or other rights of third parties which may result from its use. We assume no responsibility for any inaccuracies that may be contained in this document. We make no commitment to update or to keep current the information contained in this document. We reserve the right to make improvements to this document and/ or product at any time and without notice. COPYRIGHT NOTICE No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or any of its part translated into any language or computer file, in any form or by any means electronic, mechanical, magnetic, optical, chemical, manual, or otherwise without the express written permission and consent. Copyright All Rights Reserved. Version 2.2 AUG 2016 TRADEMARK ACKNOWLEDGMENTS All products or service names mentioned in this document may be trademarks of the companies with which they are associated. 1

4 BLOCK DIAGRAM / DOWNLOAD LINKS BLOCK DIAGRAM Low-cost devices usually are equipped with low speed processors and limited memories. In reality, they have neither the capability nor practicality to manage complicated network TCP/IP protocols. The EP-132 is low cost, while providing a high performance network solution by converting the data stream between a network TCP/IP and popular serial port signals. Instead of processing TCP/IP packets directly, devices need only deal with those interface signals, which greatly simplifies the complexity of TCP/IP network in linkage. DIRECT DOWNLOAD LINKS DEMO SOURCE CODE ZIP File (10MB): IP SEARCH UTILITY ZIP File (412KB): SERIAL-TO-ETHERNET QUICK START GUIDE PDF (260KB): TECHNICAL MANUALS ZIP FILE (1.12MB): COM PORT API COMMAND PDF (65KB): VIRTUAL COM ZIP FILE (1.65MB): Or visit the product page on our website to download directly. 2

5 FEATURES & SPECIFICATIONS FEATURES Data conversion between RS-232/422/485 and Ethernet: Converts serial devices (RS-232, RS-422 or RS-485) data/signals into TCP/IP packet data/signal and sends them out with the Ethernet data stream or converts the TCP/IP packet data/signal into a serial device data/signal. Dynamic IP Configuration: Supports DHCP client mode, simplifying network address configuration and management. Dual LAN Speed: Supports 10/100Mbps Ethernet, auto-detected. Server/Client Dual Modes: The EP-132 can be configured as a network server or network client. In client mode, it can be installed in network which is protected by a NAT router or firewall, without the need of a real IP address. Web-Based Setup: Parameters are setup based on HTTP protocols by using standard browsers (IE and Netscape). No special software is required. Built-In Security Control: Protected setup with a password to prevent intruders. Firmware Remote Update: Firmware can be updated directly via the Ethernet network to keep up with latest network standards. SPECIFICATIONS CPU: 32bits EP-132 CPU, 25MHz RAM: 2MB SDRAM (1M x16bits) ROM: 128Kb Flash ROM Ethernet: Port Type: RJ-45 Connector Speed: 10/100Mbps (Auto Detecting) Protocol: ARP, IP, ICMP, UDP, TCP, HTTP, DHCP Mode: TCP Server, TCP Client, UDP Setup: HTTP Browser Setup (IE & Netscape), RS-232 Console Security: Setup Password Protection: Built-in 1.5KV magnetic isolation Serial Port: No. of Ports: (1) RS-232 /(1) RS-422/RS-485 Speed: 300Bps~230.4KBps Parity: None, Odd, Even, Mark, Space Data Bit: 5, 6, 7, 8 Stop Bit: 1, 2 RS-232 Signals: Rx, Tx, GND, RTS, CTS, DTR, DSR, DCD RS-422 Signals: Rx+, Rx-, Tx+, Tx- (Surge Protection) RS-485 Signals: Data+, Data- (Surge Protection) Built-in RS-422/RS-485 Terminal Resistor 15KV ESD for all signal Watch Dog Function Power: DC9 12V, 500mA LED Lamp: SYS (PWR), LAN, Rx, Tx Environment: Operating Temperature: 32 F~122 F (0 C~50 C) / Storage Temperature: 14 F~158 F (-10 C~70 C) Dimensions (WxDxH): 4.3 x 3.5 x 1.2 in (110x90x30mm) Weight: 5 oz (146 grams) As product improvements are continuous, specifications are subject to change without notice. 3

6 Converter Description Product Panel View RS-422 / 485 TERMINATOR RESET BUTTON DC-IN POWER OUTLET SERIAL PORT RS-232 LAN SERIAL PORT RS-485/RS-422 LED INDICATORS LEFT SIDE POWER SUPPLY: The EP-132 TCP/IP converter is powered by a single 9~12V DC (inner positive/outer negative) power supply with 500mA of current. The power supply adapter is included. Connect the power line to the power outlet on the left side of the EP-132 TCP/IP converter and put the adapter into the socket. If power is properly supplied, the SYS red color LED will blink every one second. LAN PORT: The connector is for network RJ45. Simply connect to your network switch or Hub. When connection is made, the LAN LED indicator will light. When data traffic occurs on the network, red Tx & Rx LED indicators will blink during data transferring and receiving. DC-IN POWER OUTLET LAN 4

7 Converter Description RIGHT SIDE RS-232 SERIAL PORT OF RS-232/RS-422/RS-485: Connect the serial data cable between the converter and the serial device. Follow the setup procedure to configure the parameters of the converter. (See the following chapters) RS-422 / 485 LED INDICATORS SYS Red LED : Power indicated (When power is on, the LED will flash every one second.) Rx Green LED : Network signal receiving indicated (When receiving any signal form the network LED will flash.) Tx Red LED : Network signal transforming indicated (When transmitting any signal to the network LED will flash.) LAN LED : On-line indicated (When the converter links to the LAN, the LED will stay on.) 100M- Green LED/10M- Red LED Terminator & Reset button RESET BUTTON: Press the button, then turn on the power and wait for 3 seconds. Converter will reset to factory default. TERMINATOR RESET BUTTON TERMINATOR: The terminator resistor is built-in. If switches 1 & 2 are set in the ON position, the 120Ohm resistor will be connected between the signals. 5

8 Wiring Architecture RS-232 Wiring Architecture RS-232 Wiring Serial Device Converter RX TX TX RX HUB GND GND RS-232 (RTS/CTS) Wiring Serial Device Converter RX TX TX RX GND GND HUB RTS CTS CTS RTS RS-232 (RTS/CTS, DSR / DTR) Wiring Serial Device Converter RX TX TX RX GND GND HUB RTS CTS CTS RTS DTR DSR DSR DTR RS-422 / RS-485 Wiring Architecture RS-422 Wiring Serial Device Converter T + R + T - R HUB R + T + R - T - RS-485 Wiring Serial Device Converter D + D + D - D HUB When you finish the steps mentioned above and the LED indicators are as shown, the converter is installed correctly. You can use the Setup Tool ETM.exe to setup the IP Address. For setup, proceed to the advanced parameters, please use web browser (IE or Netscape) to continue to the detailed settings. 6

9 Converter Configuration Initial IP Configuration When setting up your converter for the first time, the first thing you should do configure the IP address. This chapter introduces methods to configure the devices server IP address. For more details about network settings, see Web Console Configuration in next sub section. For quick setup of converter, we suggest you reference the Quick Installation Guide. Device Management Utility of ETM On a PC we provide a Device Management Utility named ETM.exe which is an executable program in Windows 32bit environments. The ETM Setup tool is used to detect and setup the installed converters. It uses UDP broadcast packets to query and configure converters on the network. When you activate the tool, it will detect the existence of installed converters and depict the converters status such as IP addresses, Subnet Mask, MAC Addresses and Device IDs (See Figure 3.1). (Figure 3.1) If your computer OS is Windows XP version which means the WINDOWS Firewall function in the OS is activated. However, ETM.exe wouldn t detect the converter IP address, therefore, you have to temporarily disable the WINDOWS Firewall function. After finishing the parameters settings, you can restart the WINDOWS Firewall function. Due to the nature of the broadcast UDP packets, ETM has the following characteristics: Broadcast packets aren t limited by the subnet. If the IP address of the converters and computer are running ETM, and they do not belong to same subnet, it will still work fine. Broadcast packets can not pass routers. ETM can only be used to monitor devices with a computer running ETM in the same segment of the local area network. Menu View View -> Refresh F5: Refresh the status. ETM will send another query to get updated information. (See Figure 3.2) NOTE: Always run the View-> Refresh after any data change. View -> Exit Alt+F4: Exits from the program (See Figure 3.2) (Figure 3.2) 7

10 Converter Configuration Menu Config Config -> IP Address: (See Figure 3.3) (Figure 3.3) Press ENTER or select IP Address in the Config menu, a dialog will be shown (See Figure 3.4). NOTE: Because ETM uses broadcast UDP packets for the sake of security, it allows configuration only when the Setup the device password is empty. (Figure 3.4) Assign an IP Address with same Subnet Mask of your computer, avoiding any IP conflict with other network devices. When you press the OK button, the IP address will be refreshed in 2~3 seconds. (See Figure 3.5) (Figure 3.5) 8

11 Web Console Configuration Web Console Configuration In addition to basic IP addresses and subnet masks, specific device settings can be set through HTTP protocol with popular browsers, e.g. Internet Explorer, Netscape, etc. Setup for this converter is as easy as surfing on web, no special software is required. Press ALT + ENTER or select Device Settings in the Config menu and it will open a new window in the browser to login the device. Alternatively, if the IP address of the converter is already known, you can connect to the converter directly by providing the IP address in the URL field of the browser. Controller Status The Login Page Setting up the EP-132 TCP/IP converter is as easy as surfing on web, no special software is required. Popular browsers such as IE or Netscape can easily do the setup process. In the browser URL field, set the IP address of device directly, to enter the Controller Status page, please follow the steps below. Open your browser. This chapter will use IE as an example. In the browser URL field, type the IP address of the converter directly and press ENTER. (The IP address is what you set using the Device Management Utility.) The Controller Status page is as shown (See Figure 3.6). (Figure 3.6) Field Description SYSTEM TIME ELAPSED: This shows the time elapsed since the start of the device in [Day Hour: Minute: Second] format. This information can be useful identifying the reliability of the system. FIRMWARE VERSION: The converter firmware is identified by a date code. This information will be required for technical support. SERIAL NUMBER: The converter consists of a Type Number (5 digits) and a unique MAC (Media Access Control) addresses used by the Ethernet in hex format. (8 digits) PASSWORD (SETUP LOGIN): This field is for an administrative password for authentication. Factory default is empty. However, it is not recommended to leave it as empty in field operation. If you could not login, it means you have to key the password. If you do not know the password you can turn off the power and then use any pointed tip to press the RESET button and hold it to turn on the power. The password will be reset to the factory default as empty. The EP-132 TCP/IP converter uses the same password protection mechanism commonly used with Windows NT or UNIX. If there are more than 3 consecutive failures in the password check during login, the login function will be disabled for 15 minutes. During this 15 minute period, if you supply a correct password, login will not proceed. This prevents an intruder from finding the password with a computer generated program. 9

12 Web Console Configuration Controller Setup The Setup Page Type the correct password in the Password field and click the LOGIN button in the Controller Status page, then the Controller Setup page will appear (See Figure 3.7). NOTE: If you forget the password or can t login successfully, please contact the manufacturer directly. (Figure 3.7) Field Description IP ADDRESS: The IP address for the EP-132 TCP/IP converter is separated by (4) digits, this is so it will not conflict with other devices on the network. If DHCP client mode is enabled and there is a DHCP server on the network, this field will be assigned by the DHCP server automatically. SUBNET MASK: The subnet mask of the EP-132 TCP/IP converter network connects to and is usually used for a small network for a larger network wil be separated by (4) digits. If your IP address is provided by an ISP or internal network administrator, please retrieve and type correctly. If DHCP client mode is enabled and there is a DHCP server on the network, this field will be assigned by the DHCP server automatically. GATEWAY ADDRESS: A Gateway or Router IP address. Gateway is a device which connects a local network to an external network. If you need to communicate with other networks or your device owns the IP address, please retrieve and type correctly. If there is no gateway on the network, just leave it as If DHCP client mode enabled and there is DHCP server on the network, this field will be assigned by DHCP server automatically. NETWORK LINK SPEED: The physical ethernet speed link Auto means the speed is automatically selected by the converter. You can also specify 10Mbps or 100Mbps to match the speed of HUB. DHCP CLIENT: DHCP client mode can be enabled/disabled. If DHCP is enabled, there should be a DHCP server on the network. If DHCP is disabled, the IP address, Subnet mask and Gateway address should be manually assigned. SOCKET PORT OF HTTP SETUP: The socket port is used to conduct setup to the browser. Normally, HTTP protocol uses TCP port 80 for communication. If the field changed to 81, port 80 will be reserved for the users own Web. To enter the setup browser page, should be typed for socket port 81 and for socket port 80, where x.x.x.x is the converters IP address. DESTINATION IP ADDRESS: The server IP address and socket port should be connected in TCP Client and UDP mode for a certain server IP address. DESTINATION SOCKET PORT: The server socket port should be connected in TCP Client and UDP mode for a certain socket port. CONNECTION: The connection can be selected in (2) modes. Auto function for automatic connecting of the converter Manual function for program control of the converter 10

13 Web Console Configuration TCP SOCKET INACTIVE TIMEOUT INPUT: We added a mechanism - Inactive Timeout to identify whether the socket is active or dead. If there is not any data transferred (send/receive) within a defined timeout period (1 to 99 minutes), then it is probably a dead socket and the socket will be closed automatically, thus a new connection can be accepted again. The timeout period can be set by users to fit different kinds of applications. PACKET MODE OF SERIAL INPUT: Packet mode can be in enabled/disabled mode. If packet mode is enabled, data input from the UART will be deferred until the input buffer is full or the converter detects a (10) character packet gap and no more characters have arrived. The block waiting time is extended to avoid the splitting of a complete packet. DEVICE ID: User assigned ID number for converter. Available IDs are 0 ~ REPORT DEVICE ID WHEN CONNECTED: In TCP mode, if this parameter is enabled every time when the socket is connected, the EP-132 TCP/IP converter will immediately report the device ID in the following formats: Serial #1 Serial #2 Digital I/O nnnnna[lf][cr] nnnnnb[lf][cr] nnnnnc[lf][cr] A total of 8-bytes length, where nnnnn is assigned a 5-digit device ID by the user; [LF] is decimal 10; [CR] is decimal 13. SETUP PASSWORD: Administrative passwords used to login into the Controller Setup page. It may be left empty or up to (15) characters long. SERIAL PORT 1: The first serial port of the EP-132 is RS-232. SOCKET PORT NUMBER: A socket port assigned for the serial port. It s a 16-bit number, ranging from 1 to Because the numbers below 1000 are used for specific purposes (e.g. 80 for HTTP protocol), we suggest you use numbers larger than Generally the port number 4660 is used for serial communication. However you should specify different port numbers for each serial port. SOCKET TYPE: TCP Server: TCP protocol, open passive to be connected from TCP clients. TCP Client: TCP protocol, open active to connect to the TCP server. UDP Client: UDP protocol, connectionless. INTERFACE: RS-232: TxD, RxD for data stream, no flow control. RS-232 (RTS/CTS): TxD, RxD for data stream, RTS/CTS for flow control. RS-232 (RTS/CTS, DTR/DSR): TxD, RxD for data stream, RTS/CTS for flow control. DTR for socket status, DSR for control socket open/close. BAUD RATE, PARITY, DATA BITS, STOP BITS: Baud Rate: 300~230400Bps Parity: None, Even, Odd Data Bits: 5, 6, 7, 8 Stop Bit: 1 or 2 SERIAL PORT 2: The second serial port is RS-422/485. SOCKET PORT NUMBER: A socket port assigned for the serial port. It s a 16-bit number, ranging from 1 to Because the numbers below 1000 are used for specific purposes (e.g. 80 for HTTP protocol), we suggest you use numbers larger than Generally the port number 4660 is used for serial communication. However you should specify different port numbers for each serial port. SOCKET TYPE: TCP Server: TCP protocol, open passive to be connected from TCP clients. TCP Client: TCP protocol, open active to connect TCP server. UDP Client: UDP protocol, connectionless. INTERFACE: RS-485 (Half duplex): Half duplex RS-485 interface, RTS for driver enable/disable. RS-422 (Full duplex): Full duplex RS-422 interface. BAUD RATE, PARITY, DATA BITS, STOP BITS: Baud Rate: 300~230400Bps Parity: None, Even, Odd Data Bits: 5, 6, 7, 8 Stop Bit: 1 or 2 11

14 Web Console Configuration Controller Updated Press the UPDATE Button after you finish the detailed parameter setting. The converter will save all parameters into an internal non-volatile memory and then reboot. (See Figure 3.8) It takes about (5) seconds to complete the whole process and a new login page will be presented. (See Figure 3.1) You can re-login and check if all the parameters have been correctly saved. If everything is ok, you can now close the browser. NOTE: If the domain of the converter is different from the computer running the browser, the login page won t appear unless the converter s Gateway Address has been correctly set. (Figure 3.8) Factory Default Setting If you forget to setup a password or have incorrect settings making the converter inoperable, there are two ways to reset the settings. The following procedures can be used to reset all settings to factory default: A: 1. Turn off the power of the converter. 2. Press the RESET button of converter. 3. Turn on the power of converter and wait for (3) seconds. 4. The password will reset to the factory default (empty). B: 1. Log into the web page. 2. Press the RESET button of the converter. 3. Select the UPDATE button. 4. After the Tx & Rx lights start flashing then unclasp the RESET button. 5. The password will reset to the factory default (empty). 12

15 Self-Testing After completing the wiring and parameter settings, we should verify if the settings are correct or not. This chapter will introduce you how to use a single computer to test if the converter behaves well. The operating system can be Windows 95, 98, ME, XP, The Hyper Terminal utility should be installed on your PC. (See Figure 4.1) It can be found in your Windows installation CD. The wiring architecture is similar to RS-232 Wiring and the Serial Device is replaced by the PC s COM 1. The same PC also plays the roll of Remote Host. Hyper Terminal for TCP/IP WinSock Initiate Hyper Terminal from the start menu in Windows (See Figure 4.1), give the terminal a name, choose an icon and press the OK button. (See Figure 4.2) (Figure 4.1) (Figure 4.2) 13

16 Self-Testing Hyper Terminal for TCP/IP WinSock Select TCP/IP (Winsock) option in the Connect Using: field. (See Figure 4.3) (Figure 4.3) Press the OK button. (Figure 4.4 appears) Enter the converters IP address (e.g ) at the Host Address field and set the socket port number for Serial Port 1 in the Port Number field (e.g. 4660). (The socket type of Serial Port 1 should be the TCP Server.) (Figure 4.4) Press the OK button. (Figure 4.5 appears) If the Hyper Terminal connects with the converter successfully, the time clock at the left lower corner labeled Connected with hh:mm:ss will start counting. (Figure 4.5) 14

17 Self-Testing Hyper Terminal for COM Port Initiate another Hyper Terminal at the COM Port Terminal. (See Figure 4.3) Select COM 1 or another COM port instead of the TCP/IP (Winsock), to set the COM port properties to the same as the Serial Port of the converter (9600.N.8.1). Data Transmission When all steps described above are finished, type any characters on the COM Port Terminal and check if the typed characters are also displayed on the TCP/IP Winsock Terminal. Alternatively, check if the characters typed on TCP/IP Winsock Terminal are also displayed on the COM Port Terminal. If yes, then all settings are correct and the converter can operate properly. 15

18 Appendix B Pin outs and Cable Wiring DC POWER OUTLET: RJ-45 PIN ASSIGNMENT RS-232 PIN ASSIGNMENT: The pin assignment scheme for 9-pin male connector on DTE is given below. PIN 1: DCD PIN 2: RXD PIN 3: TXD PIN 4: DTR PIN 5: GND PIN 6: DSR PIN 7: RTS PIN 8: CTS PIN 9: X RS-422 PIN ASSIGNMENT: The pin assignment scheme for given 4-pin of RS-422 is below. PIN 1: T+ PIN 2: T- PIN 3: R+ PIN 4: R- RS-485 PIN ASSIGNMENT: The pin assignment scheme for given 4-pin of RS-485 is below. PIN 1: X PIN 2: X PIN 3: D+ PIN 4: D- 16

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