Black Box MiniStat-Four Скачать руководство пользователя страница 14

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3.3.3 GND J

UMPER

This jumper controls the connection between the signal-ground lines (pin 7 in all
MiniStat-Four RS-232 connectors) to the chassis-ground lines (pin 1). The
installation manager determines the appropriate position.

The jumper has two positions:

• C (connect) — Pins 1 and 7 connected

• D (disconnect, the factory-default setting) — Pins 1 and 7 not connected

Jumper-Setting Procedure

WARNING

Only qualified service personnel should access the inside of the
MiniStat-Four.

Avoid electric shock! Always disconnect the power cable from the utility
(mains) outlet before opening the MiniStat-Four.

To set the jumpers:

1. Disconnect all cables connected to the MiniStat-Four, including the power

cable.

2. Find the four screws (located on the bottom of the mux) that secure the

MiniStat-Four’s cover. Unscrew them, then remove the cover.

3. Refer to Figure 3-1 on the next page and identify the jumper locations and

settings. Change the settings of your mux’s jumpers as required.

4. Reinstall the MiniStat-Four’s cover and refasten the screws. (Do

not

overtighten these screws.)

CHAPTER 3: Installation

Содержание MiniStat-Four

Страница 1: ...0 FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mai...

Страница 2: ...is operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever m...

Страница 3: ...ato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo descrito en las in...

Страница 4: ...r una antena externa deber ser localizada lejos de las lineas de energia 16 El cable de corriente deber ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado deb...

Страница 5: ...rademarks mentioned in this manual are acknowledged to be the property of the trademark owners QUICK SETUP GUIDE If you are familiar with the operation of the MiniStat Four and only need a quick refer...

Страница 6: ...on 15 3 4 3 Power Connection 15 3 5 Power On Procedure 15 4 Configuration 16 4 1 Configuration Information 16 4 2 Using the MiniStat Four s Configuration Program 19 4 3 Preparation for Configuration S...

Страница 7: ...2 Remote Loops 57 6 2 3 Modem Loops 58 6 3 Calling Black Box 59 6 4 Shipping and Packaging 60 Appendix A Interface Pinouts 61 A 1 Main Composite Channel Interface 61 A 2 Sub Channel Interface 63 Appen...

Страница 8: ...ex DC4 or 91 hex to 94 hex to be the X ON and X OFF characters Operation Point to point Data Rate Subchannels 19 200 14 400 9600 7200 4800 2400 1200 600 or 300 bps user selectable Composite Up to 19 2...

Страница 9: ...rs 5 Top mounted DB25 female 4 subchannel 1 composite 1 Side mounted miniature jack for power Indicators 8 Rear mounted LEDs SYNC power synchronization ERR error TEST 4 subchannel activity composite a...

Страница 10: ...control characters From any sub channel port the mux provides for full system configuration including configuration downloading from the local MiniStat Four to the remote MiniStat Four and vice versa...

Страница 11: ...dems to the remote MiniStat Four where it is demultiplexed and distributed to the local users at their nominal rate which may differ from the nominal transmission rate NOTE Reliable operation of any s...

Страница 12: ...d The MiniStat Four does not contain fuses so the power supply must include a fuse of the appropriate rating The mux operates properly in any ambient conditions suitable for operation of electronic co...

Страница 13: ...once you change the configuration back to what it s supposed to be and save it in NVRAM the MiniStat Four will load it at its next power up 3 3 2 PIN 21 ON OFF JUMPER Pin 21 of the standard RS 232 in...

Страница 14: ...the inside of the MiniStat Four Avoid electric shock Always disconnect the power cable from the utility mains outlet before opening the MiniStat Four To set the jumpers 1 Disconnect all cables connec...

Страница 15: ...IONS MiniStat Four sub channel interfaces are configured as data communication equipment DCE interfaces so they connect directly to data terminal equipment DTE via RS 232 port cables When modems exten...

Страница 16: ...a rate Appendix A lists the pinout of the MiniStat Four s composite channel connector 3 4 3 POWER CONNECTION Power connects to a miniature jack tip positive sleeve negative and ground 3 5 Power On Pro...

Страница 17: ...mode are activated by you from the command terminal using the MiniStat Four s configuration program If you re already acquainted with the MiniStat Four see the Quick Setup Guide in Appendix C This cha...

Страница 18: ...ttings No Parameter Function Available Factory Selections Setting 1 PASSWORD Controls access Any two RD to configuration characters capital as X ON and except those letters X OFF used as X ON and X OF...

Страница 19: ...9600 14400 and 19200 bps 2 DATA BITS Number of data 5 6 7 8 8 in sub channel data frame 3 PARITY Type of parity Odd None used in sub Even channel data frame None 4 STOP BITS Number of stop 1 1 5 2 1...

Страница 20: ...ion steps At each step a screen that shows all available selections appears and when applicable also shows the current selections Use a standard selection procedure throughout the available options ar...

Страница 21: ...t a PC or terminal connected to any of the MiniStat Four s sub channels as a command configuration terminal or connect a PC or CRT terminal to one of the MiniStat Four s sub channel ports When a new t...

Страница 22: ...ast one second and type S Typing any other character after the string returns the MiniStat Four to the normal mode and you will see the message MINISTAT FOUR IN NORMAL MODE STEP 2 After correctly typi...

Страница 23: ...22 MINISTAT FOUR Figure 4 1 Organization tree of the configuration program...

Страница 24: ...23 CHAPTER 4 Configuration...

Страница 25: ...en The factory default password is RD STEP 4 If the password is rejected you will see the screen on the next page Figure 4 3 and you will have to repeat STEP 1 again Figure 4 3 Password rejection scre...

Страница 26: ...subsections present the menus and the data entry screens contained in the configuration program These subsections describe menu and screen purpose explain how to fill in the desired data and present a...

Страница 27: ...Screen 4 X OFF CONTROL CHARACTER Screen 5 MODIFY PASSWORD Screen 6 SUB CHANNEL 1 2 3 4 CONFIGURATION Screen 7 BAUD RATE Screen 8 DATA BITS Screen 9 PARITY Screen 10 STOP BITS Screen 11 MS 4 TO DTE SO...

Страница 28: ...0 TRANSFER CONFIGURATION FROM REMOTE TO LOCAL Screen 21 REMOTE MINISTAT FOUR CONFIGURATION Screen 22 EXAMINE REMOTE MS 4 CONFIGURATION Screen 23 SAVE IN LOCAL MINSTAT FOUR Screen 24 TRANSFER CONFIGURA...

Страница 29: ...re remote MiniStat Four configuration 1 SUBCHANNEL 1 CONFIGURATION These four items are used to select local sub channel 2 SUBCHANNEL 2 CONFIGURATION parameters Always change the parameters of the 3 S...

Страница 30: ...RATION Menu Purpose Select the parameters that affect the whole system X ON and X OFF characters change password and prepare the remote MiniStat Four configuration Description Code Item Description 0...

Страница 31: ...s the X ON character now in use Procedure To change the current selection type the code number corresponding to the desired character always check that this character is different from the current X O...

Страница 32: ...to the SYSTEM CONFIGURATION menu Procedure 1 Type the desired password You will receive the following message ENTER NEW PASSWORD AGAIN FOR VERIFICATION 2 Type the same characters again 3 If no differ...

Страница 33: ...e flow control and 7 end to end hardware flow control by means of DTR line Code Q is used to return to the SYSTEM CONFIGURATION screen The CURRENT CONFIGURATION line lists the current parameter values...

Страница 34: ...this sub channel and select if desired a new value Description Code numbers 1 through 4 list the available selections for the number of data bits 1 five 2 six 3 seven or 4 eight Code Q is used to retu...

Страница 35: ...ub channel to which you are now connected reprogram your terminal for the new value so that you will be able to continue After completing the required actions type Q to return to the SUB CHANNEL CONFI...

Страница 36: ...control function see subsections 12 and 13 Some DTEs have the capability to stop data flow when receiving a special character X OFF and renew data flow when receiving another character X ON see subse...

Страница 37: ...ys the local DTE s stop flow command and X ON which conveys the local DTE s restart flow command The detected X ON X OFF commands are sent to the remote MiniStat Four which converts them to flow contr...

Страница 38: ...ed a new status Description There are applications in which end to end DTE to DTE software flow control cannot be used but the end to end flow control function described in subsection 12 is neverthele...

Страница 39: ...er 6 for a description of the test loops Description Code numbers 1 through 3 are used to select the desired test loop type 1 local loop 2 remote loop and 3 modem loop When you first enter the DIAGNOS...

Страница 40: ...n 21 to the modem connected to the local MiniStat Four This forces the modem to transmit a command to the remote modem Before attempting to perform loopback make sure that 1 The local and remote modem...

Страница 41: ...configuration tasks related to the remote MiniStat Four Description Code Item Description 1 TRANSFER CONFIGURATION Used to initiate transfer FROM REMOTE TO LOCAL of current remote MiniStat Four config...

Страница 42: ...corresponding to the desired function Type Q to return to the SYSTEM CONFIGURATION menu 20 TRANSFER CONFIGURATION FROM REMOTE TO LOCAL Screen Purpose Provide an indication that the MiniStat Four execu...

Страница 43: ...AT FOUR CONFIGURATION menu see subsection 19 21 REMOTE MINISTAT FOUR CONFIGURATION Screen Purpose Define the action to be performed on the information regarding remote MiniStat Four configuration just...

Страница 44: ...rn you to the REMOTE MINISTAT FOUR CONFIGURATION menu see subsection 19 23 SAVE IN LOCAL MINISTAT FOUR Screen Purpose Notify the user that the required action has been performed in this case that acti...

Страница 45: ...interval however under certain traffic conditions you might notice the transmission delay so this screen is used to notify you that the required action is being carried out TRANSFER CONFIGURATION FROM...

Страница 46: ...ur Description Menu functions are similar to the corresponding functions of the SYSTEM CONFIGURATION menu except that the selections made from this screen affect only the remote MiniStat Four Typing Q...

Страница 47: ...splayed after selecting item 4 on the REMOTE MINISTAT FOUR CONFIGURATION menu see subsection 19 after the remote configuration information is transmitted from the local MiniStat Four to the remote Min...

Страница 48: ...identification numbers in Figure 5 1 Table 5 1 MiniStat Four indicators and connectors Item Indicator or Function Connector 1 SYNC Indicator Indicates that the MiniStat Four operates and shows the syn...

Страница 49: ...remote MiniStat Four usually because a noisy line causes errors in the data received by the remote MiniStat Four 2 ERR Indicator Indicates MiniStat Four operational status and the results of the self...

Страница 50: ...ot respond to configured flow control commands 3 TEST Indicator Lights to indicate that the MiniStat Four is in the diagnostics mode one of the test loops active or in the command mode In either case...

Страница 51: ...ector Connector 11 Sub Channel 1 Connection to sub channel 1 Connector 12 Main Composite Connection to main Channel Connector composite channel 13 Sub Channel 4 Connection to sub channel 4 Connector 1...

Страница 52: ...hat after a few seconds during which MiniStat Four performs its self test the ERR indicator is extinguished 5 2 2 NORMAL OPERATION During normal operation the SYNC and MAIN indicators should light con...

Страница 53: ...eck that the equipment connected to the MiniStat Four is powered and operates normally 5 3 2 CHECK MINISTAT FOUR INDICATIONS Refer to Table 5 2 as an aid in diagnosing problems with the MiniStat Four...

Страница 54: ...he Enter command mode diagnostics mode Select the DIAGNOSTICS item to see whether one of the test loops is on If a test loop is on but is no longer needed disconnect it MAIN not lit Problems in the Ch...

Страница 55: ...described in Chapter 6 to identify fault location ERR MiniStat Four One of the DTE units flashes buffers full connected to the MiniStat Four does not respond to flow control commands check that all t...

Страница 56: ...s and test purposes are Local loops 1 Local sub channel loop 2 Local composite channel loop Remote loops 1 Remote sub channel loop 2 Remote composite channel loop Modem loops 1 Analog loop 2 Remote di...

Страница 57: ...form test loops in the order they are listed on the previous page All the test loops are initiated from the DIAGNOSTICS screen which can be accessed from the main menu The next section describes how t...

Страница 58: ...stemming from the equipment connected to one of the local sub channels Local sub channel loop When a local sub channel loop is connected the local transmit data is returned as receive data on the sam...

Страница 59: ...rom the remote MiniStat Four sub channel while this loop is connected is lost As long as the loop is connected the sub channel activity indicator lights according to traffic The equipment connected to...

Страница 60: ...ance in the analog modem loop usually indicates a problem in the communication channel and or in the remote modem NOTE The MAIN indicator may or may not be on depending on data activity during all tes...

Страница 61: ...ackaging If you need to transport or ship your MiniStat Four Package it carefully We recommend that you use the original container Before you ship the MS 4 for repair or return contact Black Box to ge...

Страница 62: ...4 TIA PIN SIGNAL DESCRIPTION CIRCUIT RS 232C NAME NUMBER LINE 101 AA 1 Protective Chassis ground may be Ground isolated from signal ground or connected to it 102 AB 7 Signal Common ground for signal G...

Страница 63: ...ng 141 18 Loop 3 Test Control signal from Command MiniStat Four Positive level commands the modem into analog loopback 108 2 CD 20 Data Continuous positive level Terminal from MiniStat Four Ready 140...

Страница 64: ...traight through cable to connect the MiniStat Four to a DTE use a modem crossover cable to connect the MiniStat Four to a tail end modem See Figure A 1 Table A 2 Sub channel connectors CCITT V 24 TIA...

Страница 65: ...s pin is used for hardware flow control Computers or terminals that do not support this pin that send data even if CTS is negative must have software flow control ability 107 CC 6 Data Set The MiniSta...

Страница 66: ...CD DTR STRAIGHT THRU PORT CABLE TYPICAL DTE CONNECTOR SUB CHANNEL CONNECTOR CHASSIS GND 1 2 3 5 7 8 2 4 6 1 2 3 5 7 8 2 4 6 1 3 2 5 20 7 8 4 6 NOT CONNECTED CROSS OVER CABLE TYPICAL MODEM CONNECTOR 1...

Страница 67: ...Configuration Record This appendix presents a typical configuration record form shown on the facing page Copies of this form can be used as worksheets during system configuration planning and as perm...

Страница 68: ...__________________ LOCAL REMOTE System Password _________________ _________________ Setup X ON Character _________________ _________________ X OFF Character _________________ _________________ LOCAL C...

Страница 69: ...running terminal emulation connected to one of the MS 4 sub channels The terminal s communication parameters must match the parameters of the selected sub channel If you do not know what these parame...

Страница 70: ...tion on a copy of the form given in Appendix B Keep the filled out form for reference IMPORTANT Each configuration change takes effect immediately Each time you change one of the communication paramet...

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