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4.

Hardware Installation

This section describes the procedures for installing the MDS and

connecting devices to the unit.

4.1.

Configure Setup Switches

When the MDS is shipped from the factory, the Setup Switches

are configured for 9600 baud, 8 Bits-No Parity, DTR

handshaking, verbose command response, and no echo (all

switches down). These switch settings are compatible with most

applications. If the default settings are

not

compatible with your

application, change the switch settings as described in the

following subsections.

Setup Switches should be configured to match the

communication parameters used by the device attached to Port 1.

This allows access to the MDS if the unit is initialized to default

parameters.

Note:

Communication parameters (baud rate, parity, etc.)

can also be individually selected for each MDS port

by accessing the Command Mode and invoking the /P

command as described in Section 5.3.4. However, if

the MDS is initialized, parameters will return to the

settings specified by the current Set-Up Switch

configuration.

4-1

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Содержание MDS-16

Страница 1: ...WTI Part No 12554 Rev A MDS Series Multipurpose Data Switch Models MDS 16 and MDS 8 Preliminary Draft October 1995 User s Guide...

Страница 2: ...5 Sterling Irvine California 92718 949 586 9950 Toll Free 1 800 854 7226 Fax 949 583 9514 http www wti com...

Страница 3: ...mand Echo Sw7 4 3 4 2 Initialize the Unit to Default Settings 4 4 4 3 Connecting Devices to the MDS 4 4 5 Configuration 5 1 5 1 Access to the MDS Command Mode 5 1 5 2 Defining and Reading the Site I D...

Страница 4: ...A 3 Cables Apx 3 B Specifications Apx 4 C FCC Notice Apx 5 D Customer Service Apx 6 List of Figures 2 1 Instrument Front Panel 2 1 2 2 Instrument Back Panel 2 2 3 1 The MDS Help Screen 3 4 3 2 The St...

Страница 5: ...es 256K or 512K optional of non volatile buffer memory Buffer memory is dynamically allocated Multiplexing Data The Mux Mode allows the MDS to receive data from up to fourteen different devices and mu...

Страница 6: ...d parameters can be reloaded using your communications program MDS 16 and MDS 8 This User s Guide discusses both the MDS 16 and MDS 8 Multipurpose Data Switches The MDS 16 includes 16 ports and the MD...

Страница 7: ...ton and the CLEAR button release only the CLEAR button and then release the SET button Note When the MDS is initialized all command selected parameters will be cleared and the MDS will revert to the d...

Страница 8: ...Port 1 is the only port with access to All Administrator MDS commands Port 1 can either be connected to a PC or modem Connection to a modem allows the MDS to be controlled by a remote PC SETUP Switche...

Страница 9: ...wn For the purpose of this overview use the default Setup Switch configuration Set your communications program e g ProComm to use the following parameters 9600 Baud 8 Bits No Parity DTR Handshaking Fu...

Страница 10: ...ar communications program will be cable connected to MDS Port 1 Note Communication via Modem Optional If desired this overview can also be performed via modem Section 4 3 describes the procedure for c...

Страница 11: ...ProComm 2 Issue the Wake Port command to access the MDS Command Mode and make certain the port is ready to receive commands Type then simultaneously press the Ctrl key and the E key and then press Ent...

Страница 12: ...Entry E n Erase Buffer Optional Entry I Initialize Test Unit F Enter Site ID J Read Site ID P n Set Port Parameters U Read Port Parameters L n Load Port Parameters G 00 Reset All Ports D E I Commands...

Страница 13: ...Port 1 or Port 2 ii Issue the Resident Disconnect Sequence type Enter Enter b Third Party Connection This type of connection occurs when your resident port issues a C command to create a connection b...

Страница 14: ...S will prompt the user to enter the Site I D Key in the desired Site I D and press Enter Up to 32 characters long b To display the Site I D type J Enter c The Site I D will be cleared when the MDS is...

Страница 15: ...ot compatible with your application change the switch settings as described in the following subsections Setup Switches should be configured to match the communication parameters used by the device at...

Страница 16: ...al baud rates for each port SW Baud Rate 1 2 3 D D D 9600 U D D 300 D U D 1200 U U D 2400 D D U 4800 U D U 9600 D U U 19 2K U U U 38 4K Factory Default 4 1 2 Default Handshake Sw4 The default handshak...

Страница 17: ...e abbreviated numeric Factory Default 4 1 4 Default Command Echo Sw7 Switch Seven enables or disables the Command Echo When enabled characters sent to the MDS will be echoed back to the control device...

Страница 18: ...n release the SET button 4 3 Connecting Devices to the MDS Many different types of devices can be connected to the MDS To physically connect a device to the MDS proceed as follows 1 Access the Command...

Страница 19: ...em as you normally would b PC Any MDS RS 232 Port can be used for connection to a PC For 25 pin PC COM ports use an SA 12F Snap Adapter For 9 pin PC COM ports use an SA 9F Snap Adapter c Printer Any M...

Страница 20: ...4 6 MDS Series User s Guide...

Страница 21: ...The Command Mode cannot be accessed via a Buffer Mode Port Mux Mode Port or an Any to Any Mode Port that is currently connected to another MDS port 1 Start the communications program e g ProComm on y...

Страница 22: ...splay the Site I D type J Enter 5 3 Port Configuration 5 3 1 Configuration Conventions When responding to prompts invoking commands and selecting items from the port configuration menu note the follow...

Страница 23: ...port configuration Mux Input Ports are assigned to a common Mux Output Port Data can then be collected from connected devices and sent to a device connected to the Mux Output Port The Mux Mode is not...

Страница 24: ...t to the MDS to automatically reconfigure the unit without the need to manually select each parameter Section 7 provides a description of the procedure for saving and restoring configuration parameter...

Страница 25: ...Input Port and the MDS will display an additional menu which is used to select the following parameters n 1 Common Port Specifies the Mux output port for this Mux Input Port The Common Port can be an...

Страница 26: ...ined when the default Resident Disconnect Sequence is not compatible with your application n The Resident Disconnect Sequence is not used when performing a Third Party Disconnect The D command is used...

Страница 27: ...ween baud rate parity and etc Any to Any Mode Ports can be connected to other Any to Any Ports by accessing the Command Mode and issuing ASCII commands All MDS ports can be configured for the Any to A...

Страница 28: ...n a Resident Connection your resident port issues a C command to connect to a second port For example if Port 4 issues the C command to connect to Port 5 this is a Resident Connection In a Third Party...

Страница 29: ...other than your resident port type C nn NN Enter Where nn and NN are two MDS port numbers or port names Examples To connect Port 5 and Port 6 go to a third port with All command capability and type C...

Страница 30: ...nect MDS ports proceed as follows 1 Resident Disconnect A Resident Disconnect disconnects your resident port from another port For example if you are communicating via Port 3 and Port 3 is connected t...

Страница 31: ...ss to All commands the user can invoke one of the following commands at Port 1 D 03 04 Enter or D 03 Enter or D 04 Enter 3 No Activity Timeout Providing the Timeout Disconnect feature has been enabled...

Страница 32: ...sh to include in the Hunt Group For example a series of ports in a Hunt Group could be named PRINTER1 PRINTER2 PRINTER3 and etc or all ports in the group could be assigned the same name e g PRINTER 5...

Страница 33: ...en named MODEM1 and Port 2 has been named MODEM2 3 If your resident port is Port 4 and you want to connect to the first available Modem access the MDS Command Mode type C MODEM Enter Hunt Group Exampl...

Страница 34: ...hen two ports are communicating at dissimilar baud rates the buffer memory prevents data overflow at the slower port Mux Output Ports The MDS reserves 8K of buffer memory for multiplexing purposes Buf...

Страница 35: ...ws collection of data from various devices without the requirement that all devices use the same communication parameters e g baud rate parity etc 6 2 1 Reading Data from Buffer Mode Ports To retrieve...

Страница 36: ...lity 6 3 Mux Mode The Mux Mode allows data from several sources to be multiplexed to a common output port regardless of dissimilarities between baud rate parity and etc Ports that are configured for t...

Страница 37: ...t Disconnect Sequence or another nn_ command is issued from the Mux Output Port Example Assume Port 5 has been designated as a Mux Input Port and linked to Port 3 which has been configured as a Mux Ou...

Страница 38: ...6 12 MDS Series User s Guide...

Страница 39: ...n describes the procedure for using ProComm to save and load MDS parameters Note that this procedure can also be applied to other communications programs 7 1 Sending Parameters to a File 1 Start Proco...

Страница 40: ...end stored parameters to the MDS unit 1 Start ProComm and access the MDS Command Mode Press the Page Up key to activate ProComm s Upload menu 2 Select A ASCII The system will display a prompt which re...

Страница 41: ...mpt When the D Disconnect Port E Erase Buffer or I Initialize Unit commands are invoked the Y option can be included in the command line to override the SURE Y N prompt For example to disconnect Port...

Страница 42: ...d to specify an individual response message format for each port In addition to the Terse and Verbose response modes the P command can also select the Quiet Mode When the Quiet Mode is selected the po...

Страница 43: ...r Site ID F Enter X Read Site ID J Enter X X Set Port Parameters P n Enter X Read Port Parameters U Enter X A port with Basic command capability can perform a Resident Connect but cannot perform a Thi...

Страница 44: ...Command Mode X Puts an Any to Any Mode Port to sleep and exits the Command Mode While a port is sleeping the unit will not recognize any MDS commands except the E Wake Up command Note that exiting fr...

Страница 45: ...s the port s handshaking setting XON XOFF DTR BOTH or NONE 8 5 Command Reference Guide STATUS SCREEN VERSION 1 4 MEMORY 512KB PORT NAME STATUS BAUD B P HS MODE TIMEOUT BUFF CTS 01 SYSADMIN FREE 9600 8...

Страница 46: ...a from port buffers CTS Lists the status of the port s input hardware signal H high active L low inactive Who View Port Parameters W Displays the current configuration of an individual port but does n...

Страница 47: ...mands Ports which have been configured for Basic command capability cannot perform a Third Party Connect Note The C command can only be used to connect Any to Any Mode Ports The C command cannot be us...

Страница 48: ...Y is entered the MDS will respond with PORT DISCONNECT Terse 5 if Y is entered the MDS will respond with 3 Examples To disconnect Port 2 from Port 3 invoke either of the following commands from a thir...

Страница 49: ...er Where C Optional Instructs the MDS to clear the buffer after reading Note that the C option can only be issued by a port with All command capability n Is the number or name of the port buffer to be...

Страница 50: ...d the MDS will respond with OK Terse 5 if Y is entered the MDS will respond with 0 Examples To clear the buffer for Port 3 access the MDS Command Mode from an Any to Any Mode port with All command cap...

Страница 51: ...is a command option used to suppress the SURE Y N prompt MDS Response Verbose SURE Y N if Y is entered the MDS will begin the memory test and initialization sequence Terse 5 if Y is selected the MDS w...

Страница 52: ...tch configuration Please refer to Section 5 for a detailed description of the procedure for defining Port Parameters Command Availability All Administrator Command Format P n Enter Where n is the numb...

Страница 53: ...A Description of System Interfaces A 1 RS 232 Ports Apx 1 Figure A 1 RS 232 Port Connectors Figure A 2 RS 232 Port Circuitry...

Страница 54: ...igures A 4 and A 5 below describe several WTI Snap Adapters commonly used with the MDS unit The MDS uses the AT T wiring standard Apx 2 MDS Series User s Guides Figure A 3 Snap Adapter Interface Figur...

Страница 55: ...ft RJC 6 Extension Cable Coupler The MDS will accept any 6 wire straight wired RJ 11 cables Do not use standard crossover phone cables Refer to the Figure below to determine if your cable is straight...

Страница 56: ...ard rates Flow Control XON XOFF CTS DTR Both or None Timeout No activity timeout disconnects port None 1 5 10 15 seconds 1 5 15 30 minutes Memory Non volatile 256K 512K optional battery backed SRAM Au...

Страница 57: ...e equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cau...

Страница 58: ...800 854 7226 Fax 949 583 9514 Trademark and Copyright Information WTI and Western Telematic are trademarks of Western Telematic Inc All other product names mentioned in this publication are trademarks...

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