Black Box ME758C-RJ11 User's Manual
Contents
1. BLACK BOX A MA a a a a a a a a a ME758C RJ11 ME758C RJ45 ME759C RJ11 ME759C RJ45 Multi Function LD Cards RE EEE VE NE NE NE NE E E CNE NN E E NN NN UN E E MN GII CUSTOMER Order toll free in the U S Call 877 877 BBOX outside U S call 724 746 5500 SUPPORT FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 INFORMATION Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com FCC STATEMENTS FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates uses and can radiate radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio communication It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules which are designed to provide reasonable protection against such interference when the equipment 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 measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void th2. s pinning see Section 4 5 and continuity If you still get errors and can t find the cause call your supplier for technical support see Section 6 1 5 4 3 USING THE V 52 BERT TEST INDEPENDENTLY The Multi Function LD Card can perform its V 52 BERT test independently of the V 54 loopback tests This requires two operators one to initiate and monitor the test at the local Card and one to do the same at the remote Card To use the V 52 BERT test by itself both operators should simultaneously follow these steps 1 Move the lower front panel toggle switch labeled 511 E 511 to the 511 right hand position This will activate the V 52 BERT test mode and transmit a 511 test pattern to the other unit If any errors are present the receiving modem s Error LED will blink sporadically NOTE For this independent test to work properly the 511 E 511 switch on both Multi Function LD Cards must be set the same way that is moved to the 511 position for this step and to the 511 E position for the next step 2 If the BERT test indicates no errors are present move the 511 E 511 toggle switch to the left hand position to activate the 511 E test with periodic errors If this test is working properly the receiving modem s Error LED will blink regularly A successful 511 E test will confirm that the link is in place and that the Multi Function LD Cards built in 511 generators and detectors a
3. as described in the following sections 3 2 2 THE CONFIGURATION JUMPERS ILLUSTRATED Figure 3 4 below shows the possible settings of the Multi Function LD Card s jumpers Each jumper can be either on pegs 1 and 2 as shown at left or on pegs 2 and 3 as shown at right 1 2 3 1 2 3 Figure 3 4 The possible jumper settings CHAPTER 3 Configuration 3 2 3 WHERE THE JUMPERS ARE Figure 3 5 below shows the locations of the jumpers on the interface modules the locations are the same for both the RJ11 and RJ45 models These jumpers determine various grounding and signal characteristics for the serial and modem to modem lines JB2 JB3 peg 1 on left ___ peg 1 on top ME758C interface module JB4 peg 1 on left JB2 peg 1 on top ME759C interface module JB3 peg 1 on top y JB4 ae peg 1 on left Figure 3 5 The jumper locations MULTI FUNCTION LD CARD Table 3 5 below provides a summary of the functions of these jumpers The functions are described in more detail afterward Table 3 5 Summary of Interface Module Jumper Functions Jumper Function Pos 1 amp 2 Pos 2 8 3 Line Shield and FGND Connected N C PGND DTE Pin 1 and FGND Connected N C SGND and FGND Connected N C factory default settings Line Interface Line Shield Connection to Frame Ground JB2 This jumper applies to the line interface When this jumper is in positions 1 and 2
4. 1 Making sure the rack is turned off and unplugged use a small screw driver to pop the compartment open It will slide open like a drawer 2 Notice that there are two fuses in the compartment The rear fuse is active and the front fuse is the spare 3 If the active fuse appears to be blown remove it from the clips and replace it with the spare from the front of the compartment Note the size and rating of the blown fuse before discarding it 4 Order a new replacement fuse Both the 400 mA fuses Littelfuse 239 400 or equivalent and the 200 mA fuses Littelfuse 239 200 or equivalent measure 5 x 20 mm CAUTION For continued protection against the risk of fire replace blown fuses only with fuses of the same type and rating MULTI FUNCTION LD CARD 4 2 3 SWITCHING THE POWER SUPPLY BETWEEN 120 AND 240 VOLTS Although the MicroRack is shipped from the factory with a customer specified power supply configuration you may change the configuration yourself Follow these steps to switch the configuration of the power supply between 120 VAC and 240 VAC 1 Making sure the rack is turned off and unplugged remove the power supply s front module and locate the two position switch labeled either 110 220 or 115 230 near the back of the card Slide the switch to the setting corresponding to your desired voltage 2 Replace the existing fuses with fuses of the correct type see step 4 of Section 4 2 2
5. 54 remote digital and local analog loopbacks ITU TSS V 52 BERT testing On main module All models CHAPTER 1 Specifications 1 50 position card edge male to MicroRack On interface module All models 1 50 position card edge male to MicroRack ME758C RJ11 1 6 pin RJ 11 female for modem to modem line 1 DB25 female for modem to DTE line ME758C RJ45 1 RJ 45 female for modem to modem line 1 DB25 female for modem to DTE line ME759C RJ11 1 6 pin RJ 11 female for modem to modem line 1 10 pin RJ female for modem to DTE line ME759C RJ45 1 RJ 45 female for modem to modem line 1 10 pin RJ female for modem to DTE line Power From MicroRack s power supply see Section 4 2 Input 120 VAC or 240 VAC user selectable Output 10 VAC Consumption 1 8 watts typical Fuse On MicroRack see Section 4 2 2 400 mA when power supply is set to 120 VAC input 200 mA when power supply is set to 240 VAC input Temperature 32 to 122 F 0 to 50 C Humidity Up to 95 noncondensing Maximum Altitude 15 000 ft 4572 m Size Main front module 3 1 H x 1 W x 5 4 D 7 9 x 2 5 x 13 7 cm Interface rear module 3 5 H x 1 W x 2 9 D 8 9 x 2 5 x 7 4 cm Weight Total for main and interface modules 0 2 lb 0 1 kg MULTI FUNCTION LD CARD 2 Introduction 2 1 Overview The Multi Function LD Card is a short range modem on a dual rack card it has a main front m
6. The Multi Function LD Card is not sensitive to polarity 1 Blue 1 Blue 2 Orange 2 Yellow 3 Black 3 Green 4 Red 4 Red 5 Green 5 Black 6 Yellow 6 White 7 Brown 8 Slate Figure 4 2 AT amp T standard modular color codes MULTI FUNCTION LD CARD 4 6 Multipoint Applications The Multi Function LD Card supports multipoint applications using equipment arranged in a star topology Maximum distance between the units will vary based on the number of drops data rate wire gauge etc Call your supplier s technical support for distance estimates more specific to your application Figures 4 3 and 4 4 below show how to wire two pair and one pair cables respectively for a Multi Function LD Card star network HOST FIRST SLAVE SECOND SLAVE MMT RCV en er tin tique tall RCV XMT es RCV benne RCV ROME XMT EE e 11 XMT ROV AN XMT o e ed XMT Figure 4 3 Two pair star wiring for host and slave Cards HOST FIRST SLAVE SECOND SLAVE XMT anni XMT RM O XMT XMT sense XMT e nn XMT Figure 4 4 Single pair star wiring for host and slave Cards CHAPTER 5 Operation and Diagnostics 5 Operation and Diagnostics Once you have configured each Multi Function LD Card and connected the cables you are ready to operate the units This chapter describes the Card s LEDs the power up procedure and diagnostic testing 5 1 Status LEDs The Multi Function LD Card features
7. below lists our recommendations for setting this switch S3 1 S3 2 Input Impedance On On 130 ohms On Off 200 ohms default Off On 320 ohms Off Off High minimum 2000 ohms MULTI FUNCTION LD CARD Table 3 4 Recommended Impedance Settings Data Rates in kbps 3 6 4 8 7 2 9 6 200 200 200 200 200 200 320 200 200 320 200 200 S3 4 Mode Selection Set position 4 of switch S3 to determine whether the Multi Function LD Card operates in point to point or multipoint mode S34 Operation On Point to point also multipoint as the master default Off Multipoint as a slave S3 5 DTE RS 232 Initiation of Local Loopback Test Set position 5 of switch S3 to determine whether or not the attached DTE can initiate the Multi Function LD Card s local analog loopback test by raising the Local Loopback LL signal on Pin 18 of the RS 232 interface S35 DTE Initiation of Local Loopback On Enabled Off Disabled default S3 6 DTE RS 232 Initiation of Remote Loopback Test Set position 6 of switch S3 to determine whether or not the Multi Function LD Card s remote analog loopback test can be initiated by raising the Remote Loopback RL signal on Pin 21 of the RS 232 interface S3 6 DTE Initiation of Remote Loopback On Enabled Off Disabled default CHAPTER 3 Configuration S3 7 and S3 8 Antistream Control Set positions 7 and 8
8. it links RJ 11 Pins 1 and 6 or RJ 45 Pins 2 and 7 on the corresponding line to the interface module s frame ground If you are using shielded twisted pair cable the shield can be connected to these pins In positions 2 and 3 RJ 11 Pins 1 and 6 or RJ 45 Pins 2 and 7 remain connected to each other but are disconnected lifted from frame ground JB2 Positions 1 and 2 Line Shield and FGND Connected Positions 2 and 3 Line Shield and FGND Not Connected default CAUTION If you connect shield to frame ground make sure that RJ 11 Pins 1 and 6 or RJ 45 Pins 2 and 7 as well as the cable shield are connected to ground at one end of the cable only Connecting them at both ends of the cable will defeat the transformer isolation and will leave your system open to damage from ground loops CHAPTER 3 Configuration Serial Interface DTE Shield Pin 1 Connection to Frame Ground JB3 This jumper applies to the serial interface In position 1 and 2 this jumper links the Protective Ground PGND or DTE Shield lead DB25 Pin 1 or 10 pin RJ Pins 1 and 10 of the RS 232 line to the interface module s frame ground FGND When this jumper is in positions 2 and 3 the RS 232 Protective Ground on DB25 Pin 1 or RJ 45 Pins 1 and 10 is disconnected lifted from frame ground JB5 Positions 1 and 2 PGND and FGND Connected Positions 2 and 3 PGND and FGND Not Connected default Serial Interface Signal Ground and Frame
9. oocmocccncnnonnnonanonanonaninaninnnos 25 4 5 The Modem to Modem Line Cables and Connectors 00 26 4 6 Multipoint Applications sisi 28 5 Operation and Diagnostics 4 29 Hel Status LEDS ne Re net Reese ne sen ne Cds 29 5 2 Diagnostic Testing Using the Error LED oooconnncnnocanononanoninnnnnnanoneso 31 D 3 PONT UD nine aos 32 5 4 V 54 and V 52 Diagnostic Tests LL 83 6 Troubleshooting Enr E 36 6 1 Calling Your Supplier c icceccctecstdesttevesotesoseateintevsessaresvevesaterneseeese 36 6 2 Shipping and Packaging omocnnoconononinonannnannannenanonananancarononanenancnnnnaraness 36 Appendix Cable Recommendations 4 37 CHAPTER 1 Specifications 1 Specifications Hardware Required Cards can be installed only in MicroRacks see Section 4 1 Cable Required For modem to modem line Two or four wire unconditioned twisted pair 19 to 26 AWG see the Appendix pinned as shown in Section 4 5 Compliance FCC Part 15 Class A DOC Class MDC classe A Interfaces Serial ME758C models EIA TIA 561 compatible with EIA RS 232 and ITU TSS CCITT V 24 ME759C models EIA RS 232 ITU TSS V 24 Line Two or four wire telco Internal Card edge for module MicroRack interconnection Protocol Synchronous or asynchronous Clock Source Internal external from DTE or received from other Card user selectable Data Format Word length including start bit data bits stop bits and parity bit m
10. the front panel The V 54 test can also be activated from the RS 232 interface NOTE V 54 and V 52 test modes on the Multi Function LD Card are available for point to point applications only 5 4 1 LOCAL ANALOG LOOPBACK LAL The Local Analog Loopback LAL test checks the operation of the local Multi Function LD Card and is performed separately on each unit Any data sent to the local Multi Function LD Card in this test mode will be echoed returned back to the user device For example characters typed on the keyboard of a terminal will appear on the terminal s screen To perform a LAL test follow these steps 1 Activate LAL You can do this in either of two ways One is to move the upper front panel toggle switch labeled Remote Analog to the Analog right hand position The other is to raise the signal on Pin 18 of the RS 232 interface switch S3 position 5 must be On see Section 3 1 4 Once LAL is activated the Card s transmit output is connected to its own receiver The Test LED should light 2 Verify that the attached DTE is operating properly and can be used for a test 3 Move the lower front panel toggle switch labeled 511 E 511 to the 511 right hand position This will activate the V 52 BERT test mode and inject a 511 test pattern into the local loop If any errors are present in the loop the Error LED will blink sporadically MULTI FUNCTION LD CARD 4 If the BERT test
11. usado nicamente con carritos o pedestales que sean recomendados por el fabricante El aparato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo descrito en las instrucciones de operaci n Todo otro servicio deber ser referido a personal de servicio calificado El aparato el ctrico debe ser situado de tal manera que su posici n no interfiera su uso La colocaci n del aparato el ctrico sobre una cama sof alfombra o superficie similar puede bloquea la ventilaci n no se debe colocar en libreros o gabinetes que impidan el flujo de aire por los orificios de ventilaci n El equipo el ctrico deber ser situado fuera del alcance de fuentes de calor como radiadores registros de calor estufas u otros aparatos incluyendo amplificadores que producen calor El aparato el ctrico deber ser connectado a una fuente de poder s lo del tipo descrito en el instructivo de operaci n o como se indique en el aparato NOM STATEMENTS 12 Precauci n debe ser tomada de tal manera que la tierra fisica y la polarizaci n del equipo no sea eliminada 13 Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos poniendo particular atenci n a los contactos y recept culos donde salen del aparato 14 El eq
12. 11 front panel status LEDs shown in Figure 5 1 below that indicate the condition of the modem and the communication link Figure 5 1 The Card s front panel 5 1 1 THE TD AND RD INDICATORS The TD and RD indicators one red and one green LED for each signal blink when data activity occurs The red LEDs indicate a low RS 232 logic level while the green LEDs indicate a high RS 232 logic level Also since RS 232 devices idle in a low state the red LED will be steadily lit if the connections are correct and the RS 232 device is in an idle state MULTI FUNCTION LD CARD 5 1 2 THE RTS AND CD INDICATORS The RTS and CD indicators again one red and one green LED for each signal function much like the TD and RD LEDs The red LEDs light for a low signal while the green LEDs light for a high signal The RTS LEDs light for an incoming RTS signal on the RS 232 side DB25 Pin 4 or 10 pin RJ Pin 9 The CD LEDs light for an incoming signal on the line side and the resulting output signal on the RS 232 side DB25 Pin 8 or 10 pin RJ Pin 3 5 1 3 THE POWER INDICATOR The green Power LED lights to indicate that the Card is receiving power 5 1 4 THE TEST INDICATOR The green Test LED lights to indicate that V 52 or V 54 tests are running 5 1 5 THE ERROR INDICATOR The red Error LED has three functions A When the Card is in test mode green Test LED is lit the Error LED glows red when bit errors occur B When the C
13. 2 and V 54 tests word lengths extended signaling rates sync or async protocol 2 or 4 wire operation antistream control and input impedance As shown in Figure 3 2 on the next page the ON and OFF points are the same for all of the switch positions S3 on other side of board Figure 3 1 The main module switches CHAPTER 3 Configuration daa Figure 3 2 The ON and OFF settings of the DIP switches 3 1 2 CONFIGURATION SWITCH S1 Use the individual positions on DIP switch S1 to set data rate clock source sync vs async protocol and carrier control method The factory default settings are summarized in Table 3 1 below Table 3 1 Switch S1 Summary Position Function Default Setting S1 1 Data Rate On 1 2 Data Rate Off 1 3 Data Rate Off S1 4 Data Rate On 9600 bps S1 5 Clock Source On S1 6 Clock Source a gt Internal S1 7 Protocol Asynchronous S1 8 Carrier Control Constantly ON MULTI FUNCTION LD CARD S1 Positions 1 through 4 Data Rate Setting Set positions 1 through 4 of switch S1 to determine the data rate valid for both synchronous and asynchronous protocols of the Multi Function LD Card S1 1 S1 2 S1 3 Sl 4 Data Rate On On On On 1 2 kbps Off On On On 1 8 kbps On Off On On 2 4 kbps Off Off On On 3 6 kbps On On Off On 4 8 kbps Off On Off On 7 2 kbps On Off Off On 9 6 kbps default Off Off Off O
14. 3 If necessary replace the power supply cord with a country specific cord For certain countries your supplier might be able to give you a special quote on country specific cords Plug the cord back in 4 3 Installing the Multi Function LD Card in the MicroRack The Multi Function LD Card is made up of a main front module and an interface rear module The two cards meet inside the rack chassis their mating 50 pin card edge connectors plug into each other Use these steps to install each Multi Function LD Card into a MicroRack 1 Slide the rear module into the back of the MicroRack on the metal rails 2 Secure the rear module using the included metal screws 3 Slide the front module into the front of the chassis It should meet the rear module when it is almost completely in the chassis 4 Push the front module gently into the card edge receptacle of the rear module It should click into place 5 Secure the front module using the thumbscrews NOTE Since the MicroRacks allow hot swapping of cards it is not necessary to power down the rack when you install or remove a Multi Function LD Card CHAPTER 4 Installation 4 4 The RS 232 Serial Cables and Connectors The Multi Function LD Card s RS 232 port is always the lower port on its interface module On ME758C models it is a standard DB25 connector pinout shown in Table 4 1 below top On ME759C models it is a 10 pin female RJ style connector compatibl
15. 8 to On Move both front panel toggle switches to the center neutral position The Test LED should not light Connect both modems to the 4 wire twisted pair cable to be tested See Section 4 5 for pinouts and guidelines for this type of cable Here s how to interpret the results A If the quality of the line is good neither modem s Error LED will light The local modem s red CD LED will light and the remote modem s green CD LED will light B If there is flat satin cable in the line somewhere between the modems the local modem s Error LED and green CD LED will both light On the remote modem the remote modem s green CD LED will light but the Error LED will stay dark MULTI FUNCTION LD CARD NOTE We cannot guarantee that the Card will accurately detect small pieces of flat satin cable in the line if they are farther than 1500 ft 457 2 m from the local modem C If one wire among the four twisted pair wires is broken the Error LED and the green CD LED will both light on at least one of the modems 5 2 2 DETECTING STREAMING ERRORS When the Multi Function LD Card is not in test mode its green Test LED is dark the front panel Error LED can also indicate streaming errors When the Card s antistreaming circuitry is enabled one or both of switch S3 positions 7 and 8 set to On the RTS signal from the attached DTE is timer controlled The timer begins to count down when the DTE rais
16. Delay oie S2 6 Signaling Rate Range On 2 5 to 1 S2 7 Word Length S2 8 Word Length ze TOE S2 Position 2 2 Wire vs 4 Wire Operation Set position 2 of switch S2 to determine whether the Multi Function LD Card operates in 2 wire or 4 wire mode S2 2 Operation Off 4 wire full or half duplex default On 2 wire half duplex only MULTI FUNCTION LD CARD S2 Position 3 V 52 and V 54 Diagnostic Testing To reset the V 54 circuit turn switch S2 position 3 ON then back OFF S2 3 Test Mode Off Normal Operation default On Test Disabled S2 Positions 4 and 5 RTS CTS Delay Set positions 4 and 5 of switch S2 to determine the amount of time the Multi Function LD Card waits after it sees RTS before it sends CTS Possible settings are no delay 7 ms or 53 ms S24 S25 RTS CTS Delay On On 7 ms default On Off 53 ms Off On No delay Off Off No delay S2 6 Signaling Rate Range Set position 6 of switch S2 to determine the degree of asynchronous data rate fluctuation that the Multi Function LD Card will accept that is how much variance from a given frequency level the Card will tolerate S26 Signaling Rate Range Off 2 5 to 1 default On 2 5 to 2 3 S2 7 and S2 8 Word Length Set positions 7 and 8 of switch S2 to determine the word length that the Multi Function LD Card will expect for synchronous or asynchronous data For example if you are using the most common data f
17. Ground JB4 This jumper also applies to the serial interface In position 1 and 2 this jumper links the Signal Ground SGND lead DB25 Pin 7 or 10 pin RJ Pin 5 of the RS 232 line to the interface module s frame ground FGND When this jumper is in positions 2 and 3 RS 232 Signal Ground on DB25 Pin 7 or 10 pin RJ Pin 5 is disconnected lifted from frame ground JB5 Positions 1 and 2 SGND and FGND Connected Positions 2 and 3 SGND and FGND Not Connected default MULTI FUNCTION LD CARD Installation This chapter describes the functions of the MicroRacks tells how to install the front and rear modules of the Multi Function LD Cards in them and provides diagrams for wiring the interface connections correctly 4 1 The MicroRacks An Overview Multi Function LD Cards are designed to be installed in our MicroRacks product codes RM202 for the 2 card models RM204 for the 4 card models RM208 for the 8 card models and RM216 for the 16 card models You will install Multi Function LD Cards in any MicroRack the same way As an example of these products the MicroRack 16 shown in Figure 4 1 below features sixteen slots for shortrange modem cards plus its own power supply Measuring only 3 5 8 9 cm high the MicroRack 16 is designed to occupy only 2U in a 19 rack Sturdy front handles allow the MicroRack 16 to be extracted and transported conveniently Figure 4 1 The MicroRack 16 shown with fifteen Multi Func
18. ard is not in test mode green Test LEDis dark the Error LED is used to indicate an RTS streaming condition see Section 5 2 2 C The Error LED can also indicate line quality problems see Section 5 2 1 such as 1 The improper use of flat satin non twisted pair cable or low quality twisted pair cable to connect the modems 2 One or more broken wires in the 4 wire twisted pair cable 4 Broken or corroded connectors CHAPTER 5 Operation and Diagnostics 5 2 Diagnostic Testing Using the Error LED 5 2 1 TESTING CABLE QUALITY NOTE The Error LED s circuitry is designed to detect line quality across 4 wire twisted pair cable only and might not function properly with 2 wire cable If there is any question as to the quality of your line we recommend the following test 1 Disconnect both local and remote modems from their attached RS 232 DTE devices Make sure the red TD RD and RTS LEDs are all lit Set the input impedance of both modems to 200 ohms by setting switch S3 position 1 On and S3 position 2 Off Set the data rate on both modems to 9 6 kbps by setting switch S1 position 1 On S1 position 2 Off SI position 3 Off and Sl position 4 On On the local modem set carrier control for Constantly on by setting switch SI position 8 Off On the remote modem set carrier control to Controlled by RTS by setting switch S1 position
19. e user s authority to operate the equipment This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of Industry Canada Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de la classe prescrites dans le R glement sur le brouillage radio lectrique publi par Industrie Canada TRADEMARKS USED IN THIS MANUAL AT amp T is a registered trademark of American Telephone and Telegraph Company Littelfuse is a registered trademark of Littelfuse Inc Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners MULTI FUNCTION LD CARD 10 11 NORMAS OFICIALES MEXICANAS NOM ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD Todas las instrucciones de seguridad y operaci n deber n ser le das antes de que el aparato el ctrico sea operado Las instrucciones de seguridad y operaci n deber n ser guardadas para referencia futura Todas las advertencias en el aparato el ctrico y en sus instrucciones de operaci n deben ser respetadas Todas las instrucciones de operaci n y uso deben ser seguidas El aparato el ctrico no deber ser usado cerca del agua por ejemplo cerca de la tina de ba o lavabo s tano mojado o cerca de una alberca etc El aparato el ctrico debe ser
20. e with regular male RJ 45 cable connectors pinned according to a modified version of the EIA TIA 561 standard as shown in Table 4 2 below bottom Table 4 1 Pinout of the RS 232 Interface DIRECTION STANDARD RS 232 V 24 DCE PINNING DIRECTION 1 Protective Ground 2 Transmit Data TD To Card 3 Receive Data RD From Card 4 Request to Send RTS To Card 5 Clear to Send CTS From Card 6 Data Set Ready DSR From Card 7 Signal Ground SGND PGND From Card Transmit Clock DCE TCC 15 From Card Receive Clock DCE RCC 17 To Card Local Loopback LL 18 To Card Data Terminal Ready DTR 20 To Card Remote Loopback RL 21 To Card Transmit Clock DTE TCT 24 From Card Test Mode TM 25 Table 4 2 Pinout of the 10 Pin RJ Interface ITU TSS Signal Name Description V 24 0000000001 Circuit 1234567890 N A Not Used 107 DCE Ready DCR DSR 109 Received Line Signal Detector RLSD CD 108 2 DTE Ready DTR 102 Signal Common SCOM SGND 104 Receive Data RD 103 Transmitted Data TD 106 Clear to Send CTS 105 or 133 Request to Send RTS or Ready for Receiving RR 10 N A Not Used Pins 3 through 9 correspond to Pins 2 through 8 of the ElA TIA 561 non synchronous interface standard Pin 2 corresponds to Pin 1 of the ElA TIA TSB 25 preliminary interface standard 4 2 3 4 5 6 7 8 Ko MULTI FUNCTION LD CARD The Multi Function LD Card is wired as a DCE Data Communications Equipme
21. emote left hand position The other is to raise the signal on Pin 21 of the RS 232 interface switch S3 position 6 must be On see Section 3 1 4 Once RDL is activated the remote Card s receive input is connected to its own transmitter The Test LED should light on both Cards 2 Verify that the DTE attached to the local Card is operating properly and can be used for a test 3 Move the lower front panel toggle switch labeled 511 E 511 to the 511 right hand position This will activate the V 52 BERT test mode and inject a 511 test pattern into the remote loop If any errors are present in the loop the Error LED will blink sporadically CHAPTER 5 Operation and Diagnostics 4 If the BERT test indicates no errors are present move the 511 E 511 toggle switch to the left hand position to activate the 511 E test with periodic errors If this test is working properly the Error LED will blink regularly A successful 511 E test will confirm that the loop is in place and that the Multi Function LD Card s built in 511 generator and detector are working properly 5 If the remote BERT test indicates that errors are present but the local analog loopback BERT tests showed that both Multi Function LD Cards were functioning properly there is probably a problem with the twisted pair communication line connecting the two modems A common problem is improper crossing of the pairs Also check the cable
22. er AWG numbers than 26 e Using twisted pair cable with a resistance greater than that listed at the top of this page might reduce the maximum distance you can run the cable but should not otherwise affect your system lt BLACK BOX Copyright 1995 Black Box Corporation All rights reserved 1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746
23. es RTS If RTS remains high for longer than the preset timeout period the antistream circuit will force RTS low The Error LED will light indicating a streaming condition RTS continually on This feature prevents a malfunctioning terminal from tying up a computer port in a multidrop or polling environment When the DTE drops RTS the antistreaming timer is automatically reset and the Error LED goes dark The timeout period is user selectable for 12 5 or 50 seconds See Section 3 1 4 5 3 Power Up There is no power switch on the Multi Function LD Card Power is automatically applied to the Card whenever and for as long as its card edge connector is plugged into the MicroRack s mid plane socket and the MicroRack s power supply is turned on NOTE The Multi Function LD Card is a hot swappable card it will not be damaged by plugging it in or removing it while the rack is powered up CHAPTER 5 Operation and Diagnostics When the local and remote Multi Function LD Cards are both powered up and are passing data normally the LEDs on the Cards will look like this e Power Steadily lit e TD and RD Flashing red and green e RTS and CD Green steadily lit red dark e Test and Error Dark 5 4 V 54 and V 52 Diagnostic Tests The Multi Function LD Card offers two V 54 test modes and two V 52 test modes to evaluate the condition of the modems and the communication link Both sets of tests can be activated physically from
24. indicates no errors are present move the 511 E 511 toggle switch to the left hand position to activate the 511 E test with periodic errors If this test is working properly the Error LED will blink regularly A successful 511 E test will confirm that the loop is in place and that the Multi Function LD Card s built in 511 generator and detector are working properly 5 If the BERT test indicates that errors are present make sure that the RS 232 cable connecting the DTE to the Multi Function LD Card is wired straight through and is plugged in properly Also make sure that the Card is configured properly Then recheck your DTE equipment If you still get errors and can t find the cause call your supplier for technical support see Section 6 1 5 4 2 REMOTE DIGITAL LOOPBACK RDL The Remote Digital Loopback RDL test checks the performance of both the local and remote Multi Function LD Cards and the communication link between them Any characters sent to the remote Card in this test mode will be echoed returned back to the originating device For example characters typed on the keyboard of the local terminal will appear on the local terminal s screen after having been passed to the remote Multi Function LD Card and looped back To perform an RDL test follow these steps 1 Activate RDL You can do this in either of two ways One is to move the upper front panel toggle switch labeled Remote Analog to the R
25. m Alternatively 51 6 nf km or 51 6 pf m If you use the Multi Function LD Card with a different type of twisted pair cable make sure that the cable has characteristics similar to or better than those listed above for example lower capacitance or lower resistance Bench tests yield the following data rate maximum distance results Data Rate Maximum Distance in miles km in bps 19 AWG 22 AWG 24 AWG 26 AWG 57 600 12 19 3 7 11 3 5 3 8 5 4 6 4 38 400 13 20 9 7 5 12 1 6 2 10 4 2 6 8 28 800 14 22 5 8 12 9 6 6 10 6 4 6 7 4 19 200 16 25 7 8 5 13 7 7 11 3 5 1 8 2 14 400 17 27 4 11 17 7 9 2 14 8 6 5 10 5 9600 18 5 29 8 13 20 9 10 4 16 7 7 5 12 1 7200 19 30 6 13 5 21 7 10 9 17 5 8 12 9 4800 19 5 31 4 14 22 5 11 3 18 2 8 8 14 2 3600 20 32 2 14 5 23 3 11 5 18 5 8 8 14 2 2400 20 5 33 15 24 1 11 6 18 7 9 14 5 1800 20 5 33 15 24 1 11 5 18 5 8 9 14 3 1200 20 32 2 15 24 1 11 4 18 3 8 9 14 3 Many environmental factors can affect the maximum distances obtainable at a particular site Use this table as a general guideline only MULTI FUNCTION LD CARD To gain optimum performance from the Multi Function LD Card please keep these guidelines in mind e Always use twisted pair cable this is not an option e Use twisted pair cable with a capacitance of 20 pf ft 65 6 pf m or less e Avoid twisted pair cable thinner than 26 AWG that is avoid high
26. n 14 4 kbps On On On Off 19 2 kbps Off On On Off 28 8 kbps On On Off Off 38 4 kbps Off On Off Off 57 6 kbps S1 Positions 5 and 6 Clock Source Set positions 5 and 6 of switch S1 to determine which transmit clock source the Multi Function LD Card uses Internal transmit clock default S1 5 S1 6 Clock Source On On Off On Receive recover clock On Off External transmit clock S1 Position 7 Protocol Set position 7 of switch S1 to determine whether the Multi Function LD Card operates synchronously or asynchronously S1 7 Protocol On Asynchronous default Off Synchronous CHAPTER 3 Configuration S1 Position 8 Carrier Control Method Set position 8 of switch SI to determine whether the carrier is constantly on or controlled by RTS In the controlled by RTS setting the Switch can support switched carrier multipoint or hardware flow control applications S1 8 Carrier Off Constantly ON default On Controlled by RTS 3 1 3 CONFIGURATION SWITCH S2 Use the individual positions on DIP switch S2 to set word length signaling rate range RTS CTS delay or 2 or 4wire operation as well as to control diagnostic testing The factory default settings are summarized in Table 3 2 below Table 3 2 Switch S2 Summary Position Function Default Setting S2 1 Not Used N A S2 2 2 Wire 4 Wire Off 4 Wire S2 3 V 52 V 54 Tests Off Normal Operation S2 4 RTS CTS Delay On S2 5 RTS CTS
27. nication e Data rates up to 57 6 kbps distances up to 20 miles 32 2 km e 2 wire half duplex or 4 wire full or half duplex operation e Point to point or multipoint operation CHAPTER 2 Introduction e Internal external or received loopback clocking e Hardware or software flow control e Automatic equalization and gain control e Anti streaming timer e Built in transformer isolation and high speed surge protection e V 52 and V 54 test modes e Eleven LED indicators show you status at a glance e Error LED lights when Card detects broken or inferior cable MULTI FUNCTION LD CARD This chapter describes the locations and posssible settings of the Multi Function LD Card s configuration controls and provides detailed instructions for setting them Section 3 1 tells you about the three 8 position DIP switches on the Card s main front module Section 3 2 tells you about the three jumpers straps on the Card s interface rear module Once you ve configured the Multi Function LD Card it is designed to operate transparently without needing to be frequently reconfigured Just set it and forget it 3 1 Setting the Switches on the Main Module 3 1 1 WHERE THE SWITCHES ARE The Multi Function LD Card has three 8 position DIP switches S1 S2 and S3 mounted on the circuit board of its main front module as shown in Figure 3 1 below These configuration switches allow you to select data rates clocking methods V 5
28. nt device Therefore it would normally be connected to a DTE Data Terminal Equipment RS 232 device You might need to run a special cable or use a special adapter if the serial port of the RS 232 device you want to attach is not the same type of connector as the one on your Card Even if the serial ports on the Card and the DTE are both RJ 45 connectors you might still need to use a specially pinned cable Call your supplier for technical support with these issues or if you want to attach a DCE device to the Card 4 5 The Modem to Modem Line Cables and Connectors The Multi Function LD Card s line port is always the upper port on its interface module It is a 6 pin RJ 11 connector on the RJ11 models or an 8 pin RJ 45 connector on the RJ45 models pinned for a standard telco wiring environment as shown in Table 4 3 and Figure 4 2 on the next page The Multi Function LD Card operates half duplex over two wires one twisted pair or full or half duplex over four wires two twisted pairs In all applications the twisted pair wire must be 26 AWG or thicker unconditioned dry and metallic Both shielded and unshielded cable yield favorable results NOTE The Multi Function LD Card can only communicate in a closed data circuit with another Multi Function LD Card It will not work with dialup analog circuits such as those used with standard modems For further information about acceptable wire grades refer to the recommendations in the A
29. odule and an interface rear module The Card operates across two wires half duplex or four wires full or half duplex communicating synchronously or asynchronously up to a maximum range of 20 miles 32 2 km You can set the Card to any of twelve data rates from 1 2 to 57 6 kbps Local and remote modems on Multi Function LD Cards always communicate with each other synchronously When connected to an asynchronous RS 232 device the Card performs synchronous gt asynchronous conversion The Card has several features that enhance its overall performance including automatic equalization automatic gain control an antistreaming timer transformer isolation and Silicon Avalanche Diode surge protection The Card also has strong diagnostics It features V 52 compliant bit error rate BERT pattern tests and two V 54 test modes With the Card s 11 easy to read front panel LEDs you can easily monitor the status of data transmission and diagnostic testing The Multi Function LD Card is fabricated using the latest surface mount technology so you get high quality short range modem performance on a convenient rack card The Card is available with either DB25 or 10 pin RJ style serial interface connectors and either RJ 11 or RJ 45 line interface connectors on its interface rear module It fills one function card slot in our MicroRacks RM202 RM204 RM208 or RM216 2 2 Features e Convenient rack card design e Synchronous or asynchronous commu
30. of switch S3 to determine the timeout period for the Multi Function LD Card s antistream control timer or to disable the timer entirely S3 7 S38 Setting Off Off Disabled default Off On 12 5 seconds On Off 50 seconds On On 12 5 seconds 3 2 Setting the Jumpers on the Interface Module 3 2 1 THE INTERFACE MODULE OPTIONS The Multi Function LD Card has four interface module options e The ME758C RJ11 has a DB25 connector for an RS 232 serial port and an RJ 11 modem to modem port e The ME758C RJ45 has a DB25 connector for an RS 232 serial port and an RJ 45 modem to modem port e The ME759C RJ11 has a 10 pin RJ style connector for an RS 232 compatible serial port and an RJ 11 modem to modem port e The ME759C RJ45 has a 10 pin RJ style connector for an RS 232 compatible serial port and an RJ 45 modem to modem port MULTI FUNCTION LD CARD Figure 3 3 below shows the rear panels of each of these interface modules ME758C RJ11 ME758C RJ45 ME759C RJ45 ME759C RJ11 Line RJ 11 Line RJ 45 Line RJ 11 Line RJ 45 a l Serial DB25 Serial DB25 Serial 10 Pin RJ Serial 10 Pin RJ Figure 3 3 The four interface modules Before you install the Card you should examine the interface module you have selected and make sure that it is configured for your application Each interface module has three jumpers on its circuit board
31. ormat 1 start bit 8 data bits 1 stop bit and no parity you would use the factory default word length setting 10 bits S2 7 S28 Word Length On Off 8 bits On On 9 bits Off Off 10 bits default Off On 11 bits CHAPTER 3 Configuration 3 1 4 CONFIGURATION SWITCH S3 Use the individual positions on DIP switch S3 to set antistream control receive input impedance and point to point multipoint as well as to enable or disable local and remote loopbacks The factory default settings are summarized in Table 3 3 below Table 3 3 Switch S3 Summary Position Function Default Setting S2 1 Input Impedance On S2 2 Input Impedance Off eens S2 3 Reserved N A S2 4 Pt to Pt Multipoint On Point to Point S2 5 DTE Local Loopback Off Disabled S2 6 DTE Remote Loopback Off Disabled S2 7 Antistream Control Off S2 8 Antistream Control Off Disabled S3 1 and S3 2 Input Impedance Set positions 1 and 2 of switch S3 to determine the Multi Function LD Card s input impedance Choose the optimum impedance setting for your application In long distance applications the impedance of the cable must match the impedance of the load or resistor of the Multi Function LD Card Thicker gauge cables require a lower ohm setting while thinner gauge cables require a higher ohm setting Also higher data rates call for a lower ohm setting and lower data rates dictate a higher ohm setting Table 3 4
32. ppendix The modem to modem cable connection must be specially cross pinned as shown in Table 4 3 and Figure 4 2 on the next page If your cabling includes punchdown blocks you can easily do the cross pinning at a punchdown block If you will be running cable directly between two Multi Function LD Cards you can get a custom cable from your supplier as a special quote or you can use regular straight through pinned cable and repin one of the RJ connectors that is rearrange the wiring connections between the terminal block and the actual contacts You might need special crimping tools or new connectors call your supplier for these items or for technical support if you have difficulty CHAPTER 4 Installation Table 4 3 Line Cable Pinouts RJ 11 Four Wire SIGNAL PIN COLOR COLOR PIN SIGNAL GND 1 Bl White 6 GND RCV t 2 Red 4 XMT XMT 3 Black 5 RCV XMT 4 Yellow 2 RCV RCV 5 Green 3 XMT GND 6 Blue 1 GND RJ 45 Four Wire SIGNAL PIN COLOR COLOR PIN SIGNAL GND 2 Brown 7 GND RCV 3 Green 5 XMT XMT 4 Yellow 6 RCV XMT 5 Black 3 RCV RCV 6 Red 4 XMT GND T Orange 2 GND SIGNAL PIN COLOR COLOR PIN SIGNAL XMT T 3 Green as Green 3 XMT XMT 4 PROG sia ES Red 4 XMT RJ 45 Two Wire SIGNAL PIN COLOR COLOR PIN SIGNAL XMT t 4 A a ie aint ts Red 4 XMT XMT 5 Green cs Green 5 XMT Standard color codes wire colors in your cable might be different Connection to ground is optional
33. re working properly 6 Troubleshooting 6 1 Calling Your Supplier If you determine that your Multi Function LD Card is malfunctioning do not attempt to alter or repair it Contact your supplier The problem might be solvable over the phone Before you do make a record of the history of the problem Your supplier will be able to provide more efficient and accurate assistance if you have a complete description including e The nature and duration of the problem e When the problem occurs e The components involved in the problem e Any particular application that when used appears to create the problem or make it worse 6 2 Shipping and Packaging If you need to transport or ship your Multi Function LD Card e Package it carefully We recommend that you use the original container e Before you ship a unit for repair or return contact your supplier to get a Return Authorization RA number and make sure you include everything you received with the unit when you ship it APPENDIX Cable Recommendations Appendix Cable Recommendations The Multi Function LD Card has been performance tested using twisted pair cable with these characteristics Wire Gauge Capacitance Resistance 19 AWG 83 nf mi or 15 72 pf ft 16 3 Q 1000 ft 53 5 Q km 22 AWG 83 nf mi or 15 72 pf ft 32 6 Q 1000 ft 107 Q km 24 AWG 83 nf mi or 15 72 pf ft 51 65 Q 1000 ft 169 5 Q km 26 AWG 83 nf mi or 15 72 pf ft 82 35 Q 1000 ft 270 2 Q k
34. tion LD Cards installed CHAPTER 4 Installation 4 2 The MicroRacks Power Supply The power supply included with the MicroRacks uses the same mid plane architecture as the line driver cards Slide the front module of the power supply into the MicroRack from the front and slide the rear module in from the rear The two modules plug into one another in the middle of the rack Secure the front module with thumbscrews and the rear module with conventional metal screws these screws and thumbscrews come with the rack 4 2 1 SWITCHING THE POWER SUPPLY ON AND OFF The MicroRack s power switch is located on the power supply s front panel When the MicroRack is plugged in and switched on the power supply will light the red LED on its front panel Since the MicroRack is a hot swappable rack you don t have to install any cards before switching on the power supply Also the power supply may be switched off at any time without harming the installed cards and you can install or remove cards without turning off the power supply However you should always unplug the power cord before removing replacing or switching the power supply or its fuses 4 2 2 REPLACING THE POWER SUPPLY S FUSE The MicroRack s power supply uses a 400 mA fuse for 120 VAC circuits and a 200 mA fuse for 240 VAC circuits The fuse compartment is located just below the AC socket on the power supply s rear module To replace the fuse follow these steps
35. uipo el ctrico debe ser limpiado nicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir 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 debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilaci n 18 Servicio por personal calificado deber ser provisto cuando A El cable de poder o el contacto ha sido da ado u B Objectos han ca do o l quido ha sido derramado dentro del aparato o C El aparato ha sido expuesto a la lluvia o D El aparato parece no operar normalmente o muestra un cambio en su desempe o o E El aparato ha sido tirado o su cubierta ha sido da ada MULTI FUNCTION LD CARD Contents Chapter Page Le ECC AS sn re nd ie en one ada 5 2 Introduction steel Mn din Shin aio meets 8 DL OVEN anida 8 2 2 OT 8 3 Configura OM iaa dao aio 10 3 1 Setting the Switches on the Main Module cooccnnocinonanononinoninnnanncnoness 10 3 2 Setting the Jumpers on the Interface Module eee eee 17 fe Installation codos 22 4 1 The MicroRacks An Overview ss 22 4 2 The MicroRacks Power Supply cooccccccconcconanonnnonancnnnnonanonanonanonnnnonoss 23 4 3 Installing the Multi Function LD Card in the MicroRack 24 4 4 The RS 232 Serial Cables and Connectors
36. ust equal 8 9 10 or 11 bits user selectable Flow Control Transparent to all types of software X ON X OFF robust X ON X OFF etc flow control can be set to support hardware flow control Operating Mode Two wire half duplex or four wire full or half duplex user selectable MULTI FUNCTION LD CARD Data Rates Maximum Distance Isolation Surge Protection Method Surge Response Time Maximum Surge Protection User Controls Indicators Diagnostics Connectors 57 6 38 4 28 8 19 2 14 4 9 6 7 2 4 8 3 6 2 4 or 1 2 kbps user selectable See the maximum distance chart in the Appendix 1500 volts RMS minimum using custom transformers Silicon Avalanche Diodes l ps 600 watts dissipated after 1 ms 2 Front panel toggle switches Remote or local Analog loopback 511 or 511 E V 52 diagnostics 3 8 position DIP switches on main module 1 for data rate clock source protocol and carrier control 1 for 2 or 4wire operation diagnostics RTS CTS delay signaling rate range and word length 1 for input impedance point to point or multipoint operation remote loopback test initiation and antistream control 3 Frame ground connection jumpers on interface module To Line Shield DTE Shield Protective Ground and Signal Ground 11 Front panel LEDs 1 each for Power Test Error 2 each for TD RD RTS and CD ITU TSS V
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