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DS Series Manual
DATA SWITCH
DS74 Serial Input - Output Module
BayTech Manual Publication
Revision May 2008
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DS74 Serial I/O Module Copyright 2007 by Bay Technical Associates, Inc. BayTech, is a registered trademarks of Bay Technical Associates, Inc. Windows 2000®, Windows XP® are products and registered trademark of Microsoft Corporation. Tera Term is a product and registered trademark of Vector, Inc. 2
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DS74 Serial I/O Module Cabling ............................................................................................................................................................ 4 RJ-45 Cables and Adapters......................................................................................................................... 4 Adapters ...................................................................................................................................................
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DS74 Serial I/O Module Cabling RJ-45 Cables and Adapters DS74 EIA-232 RJ-45 Signal Pin EIA 232 Signal Description Signal Direction 1 DTR Out Handshake, Line Driver Inactive State = Low: -12V when port is selected unless programmed differently. Used as a handshake line to enable/disable the receiving of characters. 2 GND Signal Ground 3 RTS Out Handshake, Line Driver Inactive State = Low: -12 V when port is selected unless programmed differently. 4 TX Out Transmit Data Out 5 RX
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DS74 Serial I/O Module Adapters RJ08X007 Figures 1 and 2 provide visual representation of an RJ-45 receptacle and plug. Serial Setup • Connect the EIA-232 port to a Baytech device via the RJ08X007 rolled flat ribbon cable. • Baytech makes custom cables for some devices. • Default configuration is 9600 bps, 8 data bits, 1 stop bit and no parity. 5
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DS74 Serial I/O Module Unit Configuration Menu The configuration menu allows the user to choose which unit they would like to access. Enter the number that corresponds with the Host Module followed by a . Now the module can be configured as shown. This menu is where you will be able to edit any of the information listed below. The following pages define each line of the configuration menu. Configuration DS62 module #1..........1 DS74 module #2......
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DS74 Serial I/O Module Status Displays the current configuration of each I/O port. +----+------+-----------------+------+------+------+------+---------+----+----+ |Port|Device| Device | Baud | Word | Stop |Parity|Handshake|LineDrive| | | Type | Name | Rate | Size | Bits | | |DTR |RTS | +----+------+-----------------+------+------+------+------+---------+----+----+ | 1 | RPC | Device A | 9600 | 8 | 1 | None | None | HI | HI | +----+--
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DS74 Serial I/O Module Select handshaking: 1 For None 2 For Software Handshaking 3 For Hardware Handshaking Enter Request : Type a number to select the handshaking option and press . 1. Software Handshaking: This style uses actual data bytes as control characters. The lines necessary are TX, Rx, and ground since the control characters are sent over the transmission line like regular data. The two control characters, XON and XOFF are characters sent by the receive
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DS74 Serial I/O Module Word Size The word size is the measurement of the actual data bits in a transmission. Which setting you choose depends on what information you are transferring. For example, standard ASCII has values from 0 to 127 (7 bits). Extended ASCII uses 0 to 255 (8 bits). If the data being transferred is simple text (standard ASCII), sending 7 bits of data per packet is sufficient for communication. A packet refers to a single byte transfer, including start/stop bits, data bit
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DS74 Serial I/O Module Select 5), to get the Parity, Default is None the Host module responds: Select parity: 1 For None 2 For Even 3 For Odd Enter Request : Type a number to select the Parity option and press . RTS/DTR Line Driver Inactivity State RTS (Request to Send)/ DTR (Data Terminal Ready) is normally used in conjunction with an external modem. With no modem the RTS and DTS default state is High. Select 6), from the Serial Port Configuration the Host Mod
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DS74 Serial I/O Module +----+------+-----------------+------+------+------+------+---------+----+----+ |Port|Device| Device | Baud | Word | Stop |Parity|Handshake|LineDrive| | | Type | Name | Rate | Size | Bits | | |DTR |RTS | +----+------+-----------------+------+------+------+------+---------+----+----+ | 1 | RS232| Device A | 9600 | 8 | 1 | None | None | HI | HI | +----+------+-----------------+------+------+------+------+---------+---
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DS74 Serial I/O Module Type ‘Y’ for YES or ‘N’ for NO and press . Changes accepted. Verify DS74 is functioning: A rollover cables (pin out 1-8, 2-7, 3-6, 4-5, 5-4, 6-3, 7-2, 8-1) and a 9-pin adapter (9FRJ45PC-1) and Ethernet or Modem cable. 1. Set up the Host module with modem or Ethernet cables for normal operations. 2. Connect the rollover cable and adapter from the PC to a DS74 port. 3. Create a Modem/Ethernet session. (i.e. Hyper-terminal) Type semi-colon 5-times
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DS74 Serial I/O Module BayTech Product Warranty Bay Technical Associates (BayTech) warrants that its products will be free from defects in materials and workmanship under normal use for a period of two years from date of purchase (or from date of shipment from BayTech if proof of purchase is not provided). During this warranty period, BayTech shall, at its discretion, either repair or exchange any defective product at no charge for labor and materials, or refund the amount paid for the p
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DS74 Serial I/O Module Technical Support BayTech offers Tech Support for the lifetime of the product. A staff of Applications Engineers is on duty to assist with installation, set up or operation issues. Support is available from 8:00 a.m. to 5 p.m. (CST or CDT), Monday through Friday at the phone numbers or website provided below. Please have the following information available to help the Applications Engineers answer questions efficiently: 1. BayTech model type 2. Unit serial numbe
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DS74 Serial I/O Module Return Authorization Process: 1. Contact BayTech to get a Return Authorization (RA) Number. IMPORTANT: BayTech will not accept any returns without an RA number. 2. Package the unit carefully in its original packaging or similar packaging. The warranty does not cover damage sustained during shipment. Enclose a letter with name, address, RA number, daytime phone number and description of the problem. 3. Mark the RA number clearly on the outside of the package. NO
