Patton electronic 2073RC User's Manual
Contents
1. E B k 3 00000000 00000000 OOOOOOOOO 00000000 Of 8 oom co 002 DB 15 F M 34 F Figure 3 Model 2073RC Series interface card options Prior to installation you will need to examine the rear card and make sure it is properly configured for your application Each rear card is configured by setting straps located on the PC board To configure the rear cards you must set the configuration straps Figure 4 shows the orientation of these straps Each strap can either be on pegs 1 and 2 or on pegs 2 and 3 1 2 3 Figure 4 Orientation of Interface Card Straps 1 2 3 1 2 3 The following sections describe the strap locations and possible settings for each rear card 11 Model 1001RCM13448C Sirap Settings Figure 5 shows the strap location for the Model 1001RCM13448C M 34 rear card This strap determines whether Signal Ground and Frame Ground will be connected Figure 5 1001RCM13448C strap locations Table 1 provides an overview of interface strap functions for the rear interface cards Following the table overview are detailed descriptions of each strap s function Table 1 Interface Card Strap Summary Strap Function Position 1 amp 2 Position 2 amp 3 JB3 DTE Shield Pin A amp FRG2. ISO An ISO 9001 Certified Company Part 07M2073RC Doc 031151U Rev A Revised 1 23 03 USER MANUAL MODEL 2073RC 64k G 703 Access Converter ki 6 ve a 4 nD crs co DTR Link TM ERR ro ue 511 O 511ER DE PATTON n T Electronics To SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 CONTENTS 3 2 Warranty Information nine 4 Radio and TV Interference keke 4 GE Notice iyya niet e e e V 4 RTS lV GO eto a ses IE LES 5 General Information 6 A TAN 6 Description 6 Configuration eh radar 7 Configuring the Front Interface Card 8 Switches SW3 2 and SW3 1 Clocking Mode cceeseeseeees 8 Switches SW3 5 Front panel switch enabled disabled 9 Switch SW3 6 Response to DTE Request for Local and Remote Loop 5 2x0 aliya karakani al a day n akan kK REKAK K R LA ud 9 Switch SW3 4 Response to Remote digital RDL Loopback 9 Switch SW3 3 Terminal DTE data sampled using the 2073RC Transmit clock or External Clock provided by VIS DTES ONY xaka en tea 9 Configuring the Rear Interface Card 10 Model 1001RCM13448C Strap Settings 12 DTE Shield M 34 Pin A amp FRGND JB3 13 SGND amp FROND YB4 EE kk kek kk kek 13 Model 1001RCM11548C Strap Settings oooonnnicncnnninncninccnms
3. 13 DTE Shield DB 15 Pin 1 amp FRGND JB3 14 SGND amp FROND YB4 Eu kk kek k kek 15 Model IM2RC IA 10Base T Ethernet Rear Card 15 SLATS re 2d cose a eee O 15 Li 16 Connecting to the network u Eke kese 16 Installation sise 18 The Model 1001R14 Rack Chassis EEE n 18 The Rack Power Supply 18 Powering up your 1001R14 rack 19 Installing the Model 2073RC into the chassis 19 Connecting to a DTE device 19 Connecting to a DCE device 19 Connecting to a G 703 64 kbps Network 20 Operation scsi ii 21 LED D ScriptionS ss s yid ini Zl irate abies 21 Loop V 54 amp Telco Diagnostics 22 Operating Local Loopback LLB 22 Operating Remote Digital Loopback RDL oooonconccnnnconnccnncccn 23 Bit Error Rate V 52 Diagnostics ooocccnocccnnonoccnnccnnnnornnnnancnnnnos 23 Model 2073RC Specifications 24 Transmission Format 24 A2 WFANSMISSION LIME s Hc mire iaa 24 AS kece lae niar DD r a Behan hs 24 A4 Interface Modules a n ab 24 AS PME RATES ARR N ne nd ride Math me Ke r N 24 AO DIERA S a nes EEE me bn Ste net ae Meds 24 AL Dag Og CSi arme bedel kek n pate eg AA AANA AN Lt tn 24 A 8 LED Status Indicators He yan Ki Mende rem ner 24 29 NN E EM nes ee MO A ects es aes E E 24 AAO Temperature Range tirs huriya ll and bika 24 ATT AUGE Dd A AA
4. 703 network generated timing the Model 2073RC is perfect for network ing applications that require speeds of 64 kbps The modular rear cards style of interchangeable interface modules for the 2073RC allow various physical and electrical interfaces to connect to the 64K synchronous G 703 network A 120 ohm twisted pair telephone port provides the interface for the G 703 network Additionally 75 ohm terminations can be made using the Patton Model 460 G 703 balun Diagnostics include Local Loopback V 54 RDL testing and 511 51E built in BER patterns Synchronous clock jitter is attenuated in accordance with the G 823 3 0 CONFIGURATION The 2073RC features configuration capability via hardware DIP switches This section describes all possible hardware switch configuration Figure 1 shows the location of the DIP switches on the top of the printed circuit board OFF ON HEHEHHEH 8 1 Figure 1 Model 2073RC top view showing location of DIP switches Figure 2 shows the orientation of the DIP switches with respect to ON OFF positions ON an APP 1 2 3 4 5 6 7 8 OFF Figure 2 Close up of DIP switches showing ON OFF positions DIP SW3 8 Not Used DIP SW3 7 Not Used DIP SW3 6 ON DTETM Lines Disabled OFF DTE TM Lines Enabled DIP SW3 5 ON FP TM Switches Disabled OFF FP TM Switches Enabled DIP SW3 4 ON V54 RX Disabled OFF V54 RX Lines Enabled DIP SW3 3 Not Use
5. is being received cate that the a carrier from the remote Glows green to ind is active icate that the DTE attached to the 2073RC The Link LED lights when the unit is synchronized with the incoming 64k G 703 network signal TD RD od in CTS C Model 2073RC cD 9 9 1o nD DTR crTs cp Link DTR Link ERR TM ro us 511 amp ster ERR The Test Mode indi or remote loopbacks It will also turn on when test patterns 511 or 511ER are activated The error LED indicates various error conditions when send ing a test pattern the LED will remain lit if the unit does not receive the identical pattern When it receives the correct pat tern the LED will turn off If error insertion is on the LED will blink once a second if everything is operating properly cator will turn on when the unit enters local 21 Loop V 54 amp Telco Diagnostics The 2073RC offers two loop diagnostics for diagnosing the 2073RC and any communication links These tests can be activated via signals on the serial port interface or the front panel switch Operating Local Loopback LLB The Local Loopback LLB test checks the operation of the local 2073RC and is performed separately on each unit Any data sent to the local 2073RC in this test mode will be echoed returned back to the user device i e characters typed on the keyboard of a terminal will appear on the terminal scre
6. 01R14 Rack Chassis with power supply The Rack Power Supply The power supply included in the Model 1001R14 rack uses the same mid plane architecture as the modem cards The front card of the power supply slides in from the front and the rear card slides in from the rear They plug into one another in the middle of the rack The front card is then secured by thumb screws and the rear card by conventional metal screws There are no user serviceable parts in the power supply section of the Model 1001R14 rack Volt age setting changes and fuse replacement should only be performed by qualified service personnel Contact Patton Electronics Technical support at 1 301 975 1007 via our web site at WARNING Www patton com or by E mail at support patton com for more information 18 Powering up your 1001R14 rack The power supplies that come with your 1001R14 rack system are equipped with a power entry connector on the rear power supply card The power supplies are hot swappable so you are not required to remove the cards from the rack while applying power to the system Note Please refer to the Model 1001R14 Series User Manual AC and DC Rack Mount Power Supplies for fuse and power card replacement information 4 2 INSTALLING THE MODEL 2073RC INTO THE CHASSIS The Model 2073RC is comprised of a front card and a rear card The two cards meet inside the rack chassis and plug into each other by way of mating 50 pin card edge connectors U
7. A das 24 AAZ AUMIGILY rra 24 AtS DIMENSIONS aia dad 24 O L A aA 24 B Interface Pin Assignment rca crac 25 1 0 WARRANTY INFORMATION Patton Electronics warrants all Model 2073RC components to be free from defects and will at our option repair or replace the product should it fail within one year from the first date of the shipment This warranty is limited to defects in workmanship or materials and does not cover customer damage abuse or unauthorized modification If this product fails or does not performs as warranted your sole recourse shall be repair or replacement as described above Under no condition shall Patton Electronics be liable for any damages incurred by the use of this product These damages include but are not limited to the following lost profits lost savings and incidental or consequential damages arising from the use of or inability to use this product Patton Electronics spe cifically disclaims all other warranties expressed or implied and the installation or use of this product shall be deemed an acceptance of these terms by the user Note Conformity documents of all Patton products can be viewed online at www patton com under the appropriate product page 1 1 RADIO AND TV INTERFERENCE The Model 2073RC generates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the man ufacturer s instructions may cause interference to ra
8. DTE requests to enter Local Loopback Off Enabled Model 2073RC enters Local Loopback when the appropriate interface pin is raised see appendix for interface pinout Switch SW3 4 Response to Remote digital RDL Loopback Use Switch SW3 4 to enable or disable response to Remote digital Loop back by the local 2073RC when a RDL request is sent by a remote device SW3 4 Description ON RDL Response Disabled OFF RDL Response Enabled Switch SW3 3 Terminal DTE data sampled using the 2073RC Transmit clock or External Clock provided by V 35 DTEs only Use Switch SW3 3 to sample data from DTE using the 2073RC Transmit clock TC or External Clock XC normally Transmit clock from 2073RC is used ON TD Sampled with XC Source OFF TD Sampled with TC Source 3 2 CONFIGURING THE REAR INTERFACE CARD Your Model 2073RC comes with one of the following rear cards The Model 1001RCM13448C M 34 RJ 48C The Model 1001RCM11548C DB 15 RJ 48C The Model IM2RC IA RJ 45 10Base T RJ 48C Each of these options supports one DTE interface connection and one 4 wire line connection Figure 3 illustrates the interface options for the Model 2073RC Series Note The 2073RC Series function card is paired with a specially designed rear card and must not be swapped with other Patton rear cards Model Model Model 1001RCM11548C 1001RCM13448C IM2RC IA RJ 48C RJ 48C RJ 48C O OS O
9. ND Connected Open JB4 FRGND amp SGND Pin B Connected Open Indicates default setting 12 DTE Shield M 34 Pin A amp FRGND JB3 In the connected position this strap links M 34 pin A amp frame ground In the open position pin A is disconnected from frame ground see Table 2 Table 2 JB3 strap settings Position Description 1 amp 2 DTE Shield Pin A and FRGND Connection 2 amp 3 DTE Shield Pin A and FRGND Not Connected SGND 8 FRGND JB4 In the connected position this strap links Signal Ground and frame ground through a 100 ohm resistor In the open posi tion signal ground is disconnected from frame ground see Table 3 Table 3 JB4 strap settings Position Description UA SGND and FRGND Connected 283 SGND and FRGND Not Connected Model 1001 RCM11548C Strap Settings Figure 6 on page 14 shows strap locations for the Model 1001RCM11548C DB 15 rear cards These straps determine various grounding characteristics for the terminal interface and twisted pair lines JB3 and JB4 are user configurable 13 Figure 6 1001RCM11548C strap locations Table 4 provides an overview of interface strap functions for the rear interface cards Following the table overview are detailed descriptions of each strap s function Table 4 Interface Card Strap Summary Strap Function Position 1 amp 2 Posi
10. ar to Send DSR Data Set Ready CD Carrier Detect DTR Data Terminal Ready LLB Local Line Loop TM Test Mode RDL Remote Digital Loop TD Transmit Data RD Receive Data TD Transmit Data B RD Receive Data B XTC External Transmit Clock RC Receive Timing XTC External Transmit Clock RC Receive Timing TC Transmit Clock A 2 lt x lt c A o 2 v z 2 x n ml o ol w TC Transmit Clock B 25 X 21 Interface DB 15 Female Connector DTE DCE Configuration Pin Signal 1 Frame Ground 2 T Transmit Data A 3 C Control A 4 R Receive Data A 5 Indication A 6 S Signal Element Timing A 7 BT Byte Timing A 8 SGND Signal Ground 9 T Transmit Data B 10 C Control B 11 R Receive Data B 12 I Indication B 13 S Signal Element Timing B 14 BT Byte Timing B 26 Notes 27 Notes Copyright 2003 Patton Electronics Company All Rights Reserved 28
11. d DIP SW3 2 SW3 2 SW3 1 DIP Sw3 1 OFF OFF Internal Generated by 2073RC OFF ON External From DTE ON OFF Network Normal ON ON Network Campus Note 0 ON 1 OFF Note Boldface type indicates a factory default setting 3 1 CONFIGURING THE FRONT INTERFACE CARD Switches SW3 2 and SW3 1 Clocking Mode Use Switch SW3 to set the system clock for the Model 2073RC When using two Model 2073RC together in a point to point application as short range modems set one unit for either Internal or External transmit clock and the other unit to Network clock When connecting directly to the G 703 network set the unit to Network clock SW3 2 SW3 1 Clocking Description OFF OFF nternal Generated by 2073RC OFF ON External From DTE ON OFF Network Normal ON ON Network Campus Switches SW3 5 Front panel switch enabled disabled Use Switch SW3 5 to enable or disable the Model 2073RC Test Mode Local Loop Remote Digital Loop and 511 511E patterns ON Front Panel Test Mode Switches Disabled OFF Front panel Test Mode Switches Enabled Switch SW3 6 Response to DTE Request for Local and Remote Loop Use Switch SW3 6 to enable the Model 2073RC to enter Local Loopback mode when pin interface V 35 only is raised In the On position the Local Loopback may only be enabled manually by Switch SW3 6 SW3 6 Activation Description On Disabled Model 2073RC ignores
12. dio and television reception The Model 2073RC has been tested and found to comply with the limits for a Class A computing device in accordance with specifica tions in Subpart B of Part 15 of FCC rules which are designed to provide reasonable protection from such interference in a commercial installa tion However there is no guarantee that interference will not occur in a particular installation If the Model 2073RC does cause interference to radio or television reception which can be determined by disconnecting the unit the user is encouraged to try to correct the interference by one or more of the following measures moving the computing equipment away from the receiver re orienting the receiving antenna and or plug ging the receiving equipment into a different AC outlet such that the computing equipment and receiver are on different branches 1 2 CE NOTICE The CE symbol on your Patton Electronics equipment indicates that it is in compliance with the Electromagnetic Compatibility EMC directive and the Low Voltage Directive LVD of the European Union EU A Cer tificate of Compliance is available by contacting Technical Support 1 3 SERVICE All warranty and non warranty repairs must be returned freight prepaid and insured to Patton Electronics All returns must have a Return Materi als Authorization number on the outside of the shipping container This number may be obtained from Patton Electronics Technical Services at e Te
13. ed bits using the same polynomial lf the received bits match the agreed upon pseudo ran dom pattern the 2073RC and the communications link are functioning properly 511 or 511 E is initiated by setting the bottom front panel switch towards the label 511 or 511E respectively The Yellow TM Test mode LED will turn on to indicate activation of the 511 or 511E test modes 23 APPENDIX A MODEL 2073RC SPECIFICATIONS A 1 TRANSMISSION FORMAT Synchronous 64k G 703 co directional A 2 TRANSMISSION LINE Four Wire unconditioned twisted pair A 3 CLOCKING Internal External V 35 only or Network A 4 INTERFACE MODULES ITU T V 35 ITU T X 21 10Base T A 5 LINE RATES 256 kbps A 6 DTE RATES 64 kbps A 7 DIAGNOSTICS V 54 test modes for LAL and RDL V 52 511 511E BERT pattern genera tor and detector A 8 LED STATUS INDICATORS TD RD CTS CD DTR Link Error Test Mode A 9 CONNECTORS RJ 45 on line side DB 25 female M 34 female RJ 45 female or DB 15 female depending upon which serial interface module is installed A 10 TEMPERATURE RANGE 32 122 F 0 50 C A 11 ALTITUDE 0 15 000 feet 0 4572 m A 12 HUMIDITY up to 90 non condensing A 13 DIMENSIONS 3 5L x 2 1W x 0 78H in 9 0L x 5 3W x 2 0H mm A 14 WEIGHT 1 Ib 0 45 kg 24 Pin APPENDIX B NTERFACE PIN ASSIGNMENT V 35 Interface M 34F Female Connector DCE Configuration Signal SGND Signal Ground RTS Request to Send CTS Cle
14. en Model 2073RC Model 2073RC Internal Receive Serial Serial R ji Clockin ecover i Device j Clocking Device Clock CAE SEEN Clock Data Data Clock Data Data Model 2073RC LLB Initiated Model 2073RC Figure 12 Local loopback To perform a LL test follow these steps 1 The Local Loop can be initiated from the 2073RC unit either by acti vating the LL signal on the DTE if you are not sure which lead is the RDL signal please refer to the Appendix or by toggling the top front panel switch towards the label LLB The Yellow TM Test mode LED will turn on to indicate a successful Local loop condition 2 Verify that the data terminal equipment is operating properly and can be used for a test 3 Perform a V 52 BER bit error rate test bit error rate V 52 diagnos tics If the BER test equipment indicates no faults but the data termi nal indicates a fault follow the manufacturer s checkout procedures for the data terminal Also check the interface cable between the terminal and the 2073RC 22 Operating Remote Digital Loopback RDL The Remote Digital Loopback RDL test checks the performance of both the local and remote 2073RC as well as a point to pointcommunication link between them Any characters sent to the remote 2073RC in this test mode will be returned back to the originating device i e characters typed on the keyboard of the local terminal will appear on the
15. gt o Figure 7 IM2RC A rear panel options Status Blinks yellow from one to eleven times to indicate system status Each pulse pattern is separated by a 2 second off period Greater pulse patterns have higher priority buffer saturation has greater priority than an empty MAC table Valid system statuses are e 1 pulse system status ok e 2 pulses No MAC entries in the MAC address table 3 pulses Clear to send CTS or Carrier Detect DCD from base unit are not asserted 15 4 pulses IMRC2 lAbuffer is saturated 5 pulses WAN receive frame s too large 6 pulses WAN receive frame s not Octet aligned 7 pulses WAN receive frame s aborted 8 pulses Detected WAN receive frame s with bad CRC 9 pulses Detected LAN receive frame s too large 10 pulses Detected LAN receive frame s not Octet aligned 11 pulses Detected LAN receive frame s with bad CRC After a status code is displayed eight times and the associated condition is removed the status code will no longer appear Link Glows green to indicate good link integrity on the 10Base T twisted pair line The RJ 45 Ethernet port on Ethernet Bridge Module is designed to con nect directly to a 10Base T network Figure 8 shows the 10Base T RJ 45 port pin description You may make connections up to 330 feet using Type 4 or 5 cable no connection no connection 4 Wire ARX 2 W
16. ire TIP 4 Wire TX 2 Wire RING 4 Wire TX 4 Wire ARX no connection no connection ee 7 5 6 8 LA 1 2 3 4 5 6 7 8 Figure 8 Model IMRC2 IA Ethernet Connector Pinout Connecting to the network The Line Interface is an 8 position keyed modular jack configured as an RJ 48C see Figure 9 This interface will connect to a 64 kbps G 703 co directional network running AMI line coding 1 RX data TIP A RX data RING 2 no connection T2 TX data TIP 5 5 TX data RING O no connection PL no connection no connection From network To network TZTZTZ Figure 9 64 kbps Network Interface 16 Note If the 2073RC is being used for private short range modem applications the twisted pair cable connected to its port will need to be a cross over cable 17 4 0 INSTALLATION This section describes the functions of the Model 1001R14 rack chassis tells how to install front and rear Model 2073RC Series cards into the chassis and how to connect to the twisted pair interface and the serial interface 4 1 THE MODEL 1001R14 RACK CHASSIS The Model 1001R14 Rack Chassis see Figure 10 has 14 or 16 device card slots plus a single power supply or dual redundant power supplies Measuring only 3 5 high the Model 1001R14 is designed to occupy only 2U in a 19 rack Sturdy front handles allow the Model 1001R14 to be extracted and transported conveniently Figure 10 Model 10
17. l 1 301 975 1007 Email supportOpatton com URL http www patton com Note Packages received without an RMA number will not be accepted Patton Electronics technical staff is also available to answer any ques tions that might arise concerning the installation or use of your Model 2073RC Technical Service hours 8 AM to 5 PM EST 8 00 to 17 00 UTC 5 Monday through Friday 2 0 GENERAL INFORMATION Thank you for purchasing this Patton Electronics product This product has been thoroughly inspected and tested and is warranted for one year for parts and labor lf questions arise during installation or use of this product contact Patton Electronics Technical Support at 1 301 975 1007 2 1 FEATURES Bi directionally converts X 21 V 35 or 10 Base T to co directional G 703 LED indicators monitor Data Network and Diagnostic signals e Internal external V 35 only or network clocking options Test Mode controlled by switch or by local DTE V 35 version only e Complies with CCITT ITU G 823 Jitter Control Specifications e Built in surge protection and transformer isolation e Point to point distance up to 5250 ft 1600m on 24 AWG twisted pair 120 ohm twisted pair network termination 2 2 DESCRIPTION The Patton Model 2073RC interface converter allow a synchronous V 35 X 21 or ethernet device to communicate bi directionally over the G 703 co directional PCM network Supporting internal external DTE timing or G
18. local terminal screen after having been passed to the remote 2073RC and looped back Model 2073RC Model 2073RC Recei A Serial internal Ses Serial Clocking ecover Device Device Clocking c Clock Qable Span Clock Data Data Clock Data Data Model 2073RC Model 2073RC RDL Initiated Figure 13 Remote loopback 1 The Remote Loop V 54 can be initiated from the 2073RC unit either by activating the RDL signal on the DTE if you are not sure which lead is the RDL signal refer to Appendix B Interface Pin Assignment on page 25 or by toggling the top front panel switch towards the label RDL The Yellow TM Test mode LED will turn on to indicate a successful RDL 2 Perform a bit error rate test BERT using the internal V 52 generator as described in section Bit Error Rate V 52 Diagnostics turn the Bit error rate V 52 diagnostics on or using a separate BER Tester lf the BER test indicates a fault and the Remote Line Loopback test was successful for both 2073RC you may have a problem with the twisted pair line connection Bit Error Rate V 52 Diagnostics The 2073RC offers V 52 Bit Error Rate BER test patterns that can be invoked along with the LLB and RDL tests to evaluate the unit s and the communication links When a 511 test is invoked the 2073RC generates a pseudo random bit pattern of 511 bits using a mathematical polyno mial The receiving 2073RC then decodes the receiv
19. requirements for tail circuit applications vary between equipment manufacturers lf you have any questions about a specific installation please contact Patton Electronics Technical Support 4 5 CONNECTING TO A G 703 64 KBPS NETWORK The Network Line Interface is an 8 position keyed modular jack config ured as an RJ 48C see Figure 11 1 RX data TIP Erom network 2 RX data RING f TOM he wo Ze no connection 2 3 4 TX data TIP A 5 TX data RING To ne Wek A no connection eae no connection 8 no connection Figure 11 NetLink E1 twisted pair interface If the 2073RC is being used for private short range modem applications the twisted pair cable connected to its port will need to be a cross over cable Note 20 5 0 OPERATION Once the 2073RC is installed and configured properly it is ready to place into operation This section describes the function of the LED indicators and the use of the loopback and pattern test modes 5 1 LED DESCRIPTIONS The 2073RC is equipped with 12 LED indicators that monitor the status of communication When the unit sends a one the TXD LED is green When it sends a zero the TXD LED is yellow When the unit rece receives a zero the RXD LED is yellow ives a one the RXD LED is green When it Glows green to indi 2073RC is active Yellow indicates inactive CTS cate that the clear to send signal from the Glows green to indi modem
20. se the following steps as a guide line for installing each Model 2073RC into the rack chassis 1 Slide the rear card into the back of the chassis along the metal rails provided 2 Secure the rear card using the metal screws provided 3 Slide the card into the front of the chassis It should meet the rear card when it s almost all the way into the chassis 4 Push the front card gently into the card edge receptacle of the rear card It should click into place 5 Secure the front card using the thumb screws Note Since the Model 1001R14 chassis allows hot swapping of cards t s not necessary to power down the rack when you install or remove a Model 2073RC 4 3 CONNECTING TO A DTE DEVICE The serial port on most rear interface cards are hard wired as DCE Data Communications Equipment The interfaces are designed to plug into a DTE such as a terminal PC or host computer When making the connection to your DTE device use a straight through cable When pur chasing or constructing an interface cable refer to the pin diagrams in Appendix B on page 25 as guides 4 4 CONNECTING TO A DCE DEVICE The rear interface cards on most interface modules are hard wired as DCE Therefore you must use a tail circuit cable when connecting to a modem or other DCE device When purchasing or constructing a tail circuit interface cable use the pin diagrams in Appendix B on page 25 as a guide 19 Note Pin out
21. tion 2 amp 3 JB3 DTE Shield Pin1 amp FRGND Connected Open JB4 FRGND amp SGND Pin 8 Connected Open Indicates default setting DTE Shield DB 15 Pin 1 amp FRGND JB3 In the connected position this strap links DB 15 pin 1 amp frame ground In the open position pin 1 is disconnected from frame ground see Table 5 Table 5 JB3 strap settings Position Description 1 amp 2 DTE Shield Pin 1 and FRGND Connected 2 amp 3 DTE Shield Pin 1 and FRGND Not Connected 14 SGND amp FRGND JB4 In the connected position this strap links DB 15 pin 8 Signal Ground and frame ground through a 100 ohm resistor In the open position pin 8 is connected directly to frame ground see Table 6 Table 6 JB4 strap settings Position Description 1 amp 2 SGND Pin 8 and FRGND Connected through a 100 ohm resistor 283 SGND Pin 8 and FRGND Directly Connected Model IM2RC IA 10Base T Ethernet Rear Card There are no jumpers to set in the Model IM2RC IA for more informa tion refer to the Model IM2RC IA user manual The Model IM2RC IA provides line side connections through an RJ 45 connector Figure 7 shows rear panel options and connectors locations Descriptions of the 10Base T connector LEDs follow Figure 7 20 lt RJ 45 J Line Side 10 BaseT Connector Status LED Yellow 3 gt Link Integrity LED Green
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