BayTech LASERSHARE PS-MIO Owner's Manual

OWNER'S MANUAL________________MODEL 24HMULTIPORT CONTROLLERRev. 1.00 and higherBayTech Publication #U140E055-01

5INDICATORS: 1 green power LED; 24 red port-activityLEDs.CONNECTORS: Shielded on all ports.Serial ports - DB-25 male DTE connectors.(Optional DB-25 fe

6 BayTech provides utility software for DOS compatible PCs to assist youin configuring the Model 24H. This diskette conta

7 Please see Section 4.1 if you are interfacing to a parallel port orSection 4.2 if interfacing to a serial port. Parallel po

8 IMPORTANT: Before you proceed with cabling, you must knowwhether the devices to which you will connect the Model 24H are DTE(Data Ter

9Serial ports on the MOD 24-4CF I/O module have DB-25 female DCEports. DCE ports use the following signals for communication:DCE PORT PIN/SIGNAL DEFI

10M24H - DTE DCE DEVICEFEMALE DB-25 MALE DB-25M24H - DTE DTE DEVICE FEMALE DB-25 FEMALE DB-2512345678201234567820PGNDTXDRXDRTSCTSDSRSGNDDCDDTR<<

11 The BayTech Model 24H is a user-programmable, multifunction devicethat allows serial port expansion/sharing, time division multiplexing,

12 The Model 24H allows the host device to assign an individual logicalname to each peripheral port for reference while the unit

13 This is a single character that indicates a completed message to theModel 24H in Modes of Operation 2, 3, 4 and 5

14 NOTE: For illustration purposes, the factory default port select code($SELECT) will be used in the following descriptions o

Thank you for selecting a BayTech Model 24H multiport controller.The data provided in this Owner's Manual explains the various ways youcan operat

15  Mode of Operation 3 provides multiplexing to the host port of a singlemessage from all peripheral ports. Single mess

16 A typical application using a Model 24H would have a host computer,such as an IBM PC, connected to the host port

17 In Mode of Operation 1, the Model 24H will provide full duplexcommunication between the host port and the selected peripher

18 Mode of Operation 2 provides automatic message multiplexingbetween the host port and up to twenty-three peripheral ports.

19 In Mode of Operation 4, all messages from a single peripheral port aresent to the host port automatically. The host device

20 Mode of Operation 6 provides time-division multiplexing. The internalprocessor continuously scans all peripheral ports che

21 Binary mode allows all data received by the host port to be passedthrough to the selected peripheral port including the port selectse

22   NOTE: The following discussion for hardware handshaking assumesyou have DTE serial ports installed

23When the Model 24H retransmits the data to the host device and thehost device can no longer accept data, the Model 24H will expect todetect a false

24When the Model 24H retransmits the data to the peripheral device andthe peripheral device cannot receive any more data, the Model 24H willexpect to

NOTE: The information contained in this document is subject tochange without notice.Copyright 1994 by Bay Technical Associates, Inc.IBM, IBM PC, IBM

25 Configuration changes are made through the host port which is Port 1. Port 1 must always be a serial port to allow configuration to o

26 The Model 24H will respond to the receiving of Control-T and Capital Cwith an identification block and a menu of the conf

27 By responding to the Enter Request: Message at the end of the mainconfiguration menu with "1" (Status), you may review the curre

28 OPERATION PROTOCOL+------+-------------------------+-----------+------+------+| Mode | Host port Control Code | Receive |

29 By responding to the Enter Request: message at the end of the mainconfiguration menu (see Section 6.1) with "2

30Enter "8" for 38400 baud rate, and the Model 24H will respond with thereconfigured status of the port, the option menu, and the prompt:+--

31If there are no other changes for this port, send "1" (Exit/Save), and theModel 24H will respond with:Save Changes Permanently ? (Y/N) :NO

32 NOTE: This section is applicable only if you have parallel portsinstalled.By responding to the Enter Request: m

33The Model 24H will then respond with the following prompt:Enter Parallel Port Number (? = Help, ENTER = Exit) :Enter the number of any other serial

34You may now enter the new logical name for the device connected tothis port. A maximum of 16 characters may be entered. If less than 16characters

TABLE OF CONTENTS1 GENERAL INFORMATION ... 12 SPECIFICATIONS ...

35 By responding to the Enter Request: message at the end of the mainconfiguration menu (see Section 6.1) with "5"

36 By responding to the Enter Request: message at the end of the configuration menu (see Section 6.1) with &qu

37" By responding to the Enter Request: message at the end of theconfiguration menu (see Section 6.1) with "7"

38 Since there are no adjustments and no moving parts in the Model 24H,preventive maintenance is unnecessary. If

39" In the event that you have problems with the Model 24H, BayTech hasa staff of applications engineers on duty to assist you f

40# $%This equipment generates and uses radio frequency energy and, if notinstalled

41APPENDIX ATROUBLESHOOTINGPlease check this troubleshooting guide before calling BayTechTech Support.PROBLEM: CANNOT CONFIGURE M24HSYMPTOM: "CON

42CAUSE: Port selection.SOLUTION: Be sure host device is connected to thehost port (Port 1) on the Model 24H.CAUSE: Software.SOLUTION: Use dumb term

43CAUSE: Configuration problem.SOLUTION: Check baud rate, word size, stop bits andparity on serial ports. Make sure the ports on theModel 24H are con

44PROBLEM: CAN'T SELECT PERIPHERAL PORT FROM HOSTDEVICESYMPTOM: LEDs ON THE FRONT PANEL DO NOT CHANGEWHEN SELECTING DIFFERENT PERIPHERAL PORT.C

5.3 LED INDICATORS... 205.4 BINARY MODE...

45PROBLEM: CAN'T RECEIVE DATA FROM PERIPHERAL PORTSCAUSE: Wrong peripheral port selected.SOLUTION: If in Modes 3, 4, or 5, make sure thehost d

46APPENDIX BINDEXA ASCII 4, 12, 16, 18, 19, 21, 25, 28, 35Asynchronous 3B Baud rate 2-4, 11, 25, 29, 30, 41

47D Data block length 2-4, 11, 13, 15, 20, 26, 28, 37Data Communication Equipment 8Data flow control 22, 42Data Terminal Equipm

48I I/O module 9IBM 3, 1, 7, 8, 11, 16, 25, 34Identification block 26Input Flow Control 23, 30, 42Interface 3, 8, 40Internal

49N,O,P Non-printable characters 35Non-volatile memory 2, 4, 31, 34-37Optional 3-6Output flow control 23, 30, 42Parity 2-4, 11, 1

50S Serial number 39Serial port configuration 2, 11, 26-29, 43, 44Signal ground 8, 9Specifications 3, 40Spooling 4Status 26-

51W Warranty 5, 38Weight 4Word size 2-4, 11, 25, 29, 30, 41, 43, 44X,Y,Z XON/XOFF handshaking 11, 23, 29, 42

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1 The Model 24H Data Exchange System is a versatile, multi-functiondata communication product that allows a single host computer s

comprehensive data collection functions are provided through moduleconfiguration menus.Telplex Models TX102, TX104 and TX108 are asynchronous statisti

Included in the 500 Series line of multiport controllers are units intended for thefollowing applications:Port Expansion (A-Series): Allows a single

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2Mode 6 Time division multiplexing - Provides automaticmultiplexing of data from peripheral devices bycontinuously scanning all ports to check for cha

3 INTERFACE: Serial ports - Asynchronous EIA-232(CCITT V.24), -12v mark, +12v space. Full duplexcommunication. Optional EIA-422 and c

4USER-PROGRAMMABLE CONFIGURATIONS:Reconfigurable in menu-driven mode through host port (Port 1). Saved in non-volatile memory to become the new power-