Patton electronic 2616RC Network Card User Manual
Contents
1. 5 0 OPERATION Once the Model 2703 X21 is properly configured and installed it should operate transparently This sections describes power up reading the LED status monitors and using the built in loopback test modes 5 1 POWER UP To apply power to the Model 2703 X21 first be sure that you have read Section 3 3 and that the unit has the proper voltage setting and fuse Failure to do so could result in damage to the unit and connected equipment and may constitute a fire hazard Having checked the voltage setting plug the AC power cord into both the Model 2703 X21 and the AC outlet Then Power up the unit using the rear Power switch Note the PWR LED should glow when power is applied to the unit 5 2 LED STATUS INDICATORS The Model 2703 X21 features four front panel LEDs that indicate the status of power network connection master clock and loopback test Figure 7 below shows the front panel location of each LED Following Figure 7 is a description of each LED s function Pl PATTON Model 2703 MegaLink 1 G 703 E1 Modem Converter 2 048 Mbps Wa ClectronicsTo PIN NS A Test Modes oer Loop Loopback e 6 oz Figure 7 Model 2703 Front Panel Power Glows red when the Model 2703 X21 is powered up Network Glows green when the Model 2703 X21 is receiving correctly encoded data from the line interface equipment Master Clock Glows green when the Model 2703 X21 is configured as the master clock un2. master or Network slave clocking Loopback test is built in and front panel LEDs monitor power network master clock and test loop Several power supply options are available 3 0 CONFIGURATION The Model 2703 X21 is equipped with one DIP set containing eight switches externally accessible as well as seven jumpers internal These switches and jumpers allow configuration of clocking data rate and test options The Model 2703 X21 is also equipped with an internal switch that allows selection of 115 or 230 VAC power inputs Note this switch is not present in Models 2703 X21 UI and 2703 X21 DC This section describes switch and jumper locations and explains all possible configurations 3 4 EXTERNAL DIP SWITCH SETTINGS The Model 2703 X21 s DIP switch set is located on the underside of the unit see Figure 1 below Figure 2 below shows the orientation of the switch set All possible settings for the Model 2703 X21 s switches are presented in the summary table and descriptions on the following pages If you have additional questions regarding configuration contact Patton Technical Support at 301 975 1000 Figure 1 Underside of Model 2703 showing external DIP switch location o 1 ON 23 4 5 6 7 8 Figure 2 Close up of configuration switches N HS 8 OFF 3 Switch Set S1 The configuration switches on S1 set clocking rate adaptation loopback enable and data invert The
3. DC version is supplied without power cord All versions of the Model 2703 X21 are supplied without a terminal DTE interface cable This cable may be ordered separately or may be supplied by the user Standard power supply option switchable between 115 and 230 VAC Model 2703 X21 Universal Interface power supply option operates in environments ranging from 85 to 265 VAG ciis ense nece tec cies Model 2703 X21 UI DC power supply option operates in 48 VDC environments equipped with a 3 pin terminal strip for DC power connection sese Model 2703 X21 DC C 2 AC Power Cords Power cord must be specified when ordering Models 2703 X21 or 2703 X21 Ul If power cord is omitted suffix K will be assigned Ordering Suffix Power Cord Description Bst etie Rd Continental Europe CEE 7 o ET ENS Australia New Zealand Deise ee United Kingdom Enos APT TREE CEU Denmark E E France Belgium cO India p Israel ltt e eee tes Italy Japan KM AMI LAM UN North America ERE Mee Oe alate Switzerland Example 2703 X21 UI D Universal Interface wi UK power cord 17 APPENDIX D SAFETY WARNINGS AND REQUIREMENTS These warning notices apply to the Input Port the port marked Network Warning The port marked SAFETY WARNING see instructions for use does not provide isolation sufficient to satisfy the requirements of BS6301 apparatus connected directly to this
4. Seca artes Receive pair from network EE eee hed ds Shield reference point 4i D EE E Transmit pair to network Deche ee e Shield reference point YO ERROR Not used Bord toes Eelere Not used 4 1 2 Dual Coax BNC 75 OHM Connection In addition to the 120 ohm twisted pair connection the Model 2703 X21 is equipped with dual female BNCs TX and RX for connection to a 75 ohm dual coax G 703 network interface The outer conductor of the coax cables is isolated from system earth ground 11 4 2 CONNECTION TO THE TERMINAL DEVICE The Model 2703 X21 is wired as a DCE and when configured properly supports communication with an X 21 DTE device The Model 2703 X21 is equipped with a DB 15 female connector and uses a standard X 21 patch cable wired straight through If you wish to construct your own terminal adapter cable please consult the pinout diagram in Appendix B 4 3 CONNECTION TO THE POWER SOURCE As described in Section 3 3 the Model 2703 X21 is available with three power supply options two AC and one DC The two AC power supply options Standard and Universal use a female IEC power cord interface for which Patton can supply various domestic and international power cords Please refer to Appendix C for specific Patton part numbers when ordering power cords The DC power supply option uses a 3 pin terminal strip interface Note Please refer to the Model 2703 X21 Service Manual for DC power supply wiring instructions 12
5. default settings are summarized in the table below S1 SUMMARY TABLE Position Function Factory Default 81 1 Clock Master Slave On Master 81 2 Rate Adaptation Off 2 048 Mbps S1 3 Rate Adaptation ff S1 4 Test Enable Off Front Panel S1 5 Data Inversion Off Not Inverted S1 6 Not Used Off N A S1 7 Not Used Off N A S1 8 Not Used Off N A S1 1 Master Slave Clock The setting for switch S1 1 determines whether the Model 2703 X21 provides the master clock or is slaved to another clock source S1 1 On Off Setting Model 2703 X21 is master Model 2703 X21 is slave clock is recovered from the network S1 2 and S1 3 Rate Adaptation Switches S1 2 and S1 3 are set in combination to allow the Model 2703 X21 to adapt to terminal devices running at data rates of less than 2 048 Mbps The network rate remains 2 048 Mbps regardless of the terminal rate adaptation setting The setting you select should match the data rate of your terminal device S1 2 1 3 Setting Off Off 2 048 Mbps On Off 1 024 Mbps Off On 512 kbps On On 256 kbps NOTE Revision B Firmware or newer Implemented 6 19 98 has been adopted to correct signal polarity at 1 024 Mbps 512 kbps and 256kbps To operate Revision B Firmware units with Revision A or older units at one of these sub rates you must invert invert the data Switch S1 5 On See Below Firmware revision level is printed on the label on the bottom of t
6. port should either have been approved to BS6301 or have previously been evaluated against British Telecommunications plc Post Office Technical Guides 2 or 26 and given permission to attach Any other usage will invalidate the approval of the Interface Module Interconnection of the Interface Module the port marked Network directly or by way of any other apparatus with ports on other apparatus marked or not so marked may produce hazardous conditions on the network Users should seek advice from a competent engineer before such a connection is made The Interface Module is approved as a Host Independent Appliqu As such the Interface Module is only approved for use with a host and with host attachments that are either type approved in their own right or if supplied after March 1989 are covered by terms of the General Approval number NS G 1234 J 100003 A Host supplied under the terms of the General Approval number NS G 1234 J 100003 satisfies the conditions of the paragraph above The Interface Module must not be modified in any way Any form of modification invalidates the approval for connection and the Patton warranty of the unit The terms of the approval require that there must be a minimum distance bmm between the Interface Module and any other part of the host including other Interface Modules This condition is met by default when the Appliqu is installed in a Patton enclosure in accordance with the instructions
7. If voltages greater than 250V are present in the host users should refer to a competent safety engineer for advice It is a condition of the approval that a copy of these user instructions and safety warnings must be supplied with the host Failure to provide the Interface Module user instructions with the host will invalidate the Appliqu approval Failure to install the Interface Module in accordance with these instructions will invalidate the approval If you experience difficulties or are in any doubt please contact your Patton representative 18
8. Module by lifting gently upward on it until it comes free from the Model 2703 X21 main PC board 3 Slide out the Network Interface Module and locate the jumpers on the bottom side of the board 4 Configure the jumpers according to the section below and return the Network Interface Module and cover to their proper positions Loue Figure 3 Opening the 2703 Case with a Small Screwdriver l Figure 4 Opening the 2703 Case With a Small Screwdriver The internal jumpers mounted on the Model 2703 X21 s PC board labeled LK1 LK7 are used to configure the 75 ohm or 120 ohm network link parameters Figure 5 below shows the location of the Model 2703 s jumpers on the internal PC board 6 Figure 5 Jumper locations on Model 2703 PC board The table below shows the factory default jumper settings Following the table are descriptions for each jumper JUMPER SUMMARY TABLE Jumper Function 75 ohm 120 ohm Factory Default LK1 75 Ohm TX Shield to GND On Off On connect LK2 75 Ohm RX Shield to GND Opt Off Off disconnect LK3 Reserved Off LK4 120 Ohm Shield to GND Off Opt Off disconnect LK5 Configuration Auto Sense On Opt On enabled LK6 75 Ohm Input Impedance On Off On 75 Ohm LK7 75 Ohm Input Impedance On Off Opt optional setting all others are required for proper operation NOTE one combination of ju
9. ODEL 2703 SPECIFICATIONS Network Interface Network Rate Network Connectors Terminal Interface Terminal Rate Diagnostics Indicators Clocking Receiver Sensitivity Power Temperature Range Altitude Humidity Dimensions Weight G 703 2 048 Mbps Two BNC 75 Ohm and one modular RJ 45 connector 120 Ohm X 21 on female DB 15 connector 2 048 Mbps 1 024 Mbps 512 kbps or 256 kbps Loopback Test LEDs for power network master clock and loopback test Internal Master or Network Recovered Slave clock 10 dB OdB 2 4V 85 265 VAC switch selectable 50 60 Hz 85 265 VAC 50 60 Hz universal input option 48 VDC option 0 50 C 32 122 F 0 15 000 feet 5 to 95 noncondensing 7 3 x 6 6 x 1 62 185mm x 168mm x 41mm 2 02 Ibs 15 APPENDIX B MODEL 2703 X21 PIN CONFIGURATIONS CCITT X 21 INTERFACE DB 15 Transmit B 9 Control B 10 Receive B 11 Indication B 12 Signal Timing B 13 16 1 Frame Ground 2 Transmit A 3 Control A 4 Receive A 5 Indication A 6 Signal Timing A 8 Signal Ground APPENDIX C FACTORY PARTS AND ACCESSORIES C 1 Basic Standalone Units The Patton Model 2703 X21 standalone digital modem is available in three versions depending upon the power supply installed The Standard and Universal Interface versions are supplied with a power cord which must be specified in the model number when ordering The
10. USER MANUAL MODEL 2703 X21 G 703 E1 Digital Modem TE PATTON Ba Elecironics o ISO Part 07M2703 X21 SALES OFFICE j Doc 031111UC 301 975 1000 rh Revised 6 19 98 TEC GALE E 301 975 1007 An IS0 9001 http www patton com Certified Company 1 0 WARRANTY INFORMATION Patton Electronics warrants all Model 2703 X21 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 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 perform 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 specifically 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 1 1 RADIO AND TV INTERFERENCE The Model 2703 X21 generates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may c
11. ause interference to radio and television reception The Model 2703 X21 has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable protection from such interference in a commercial installation However there is no guarantee that interference will not occur in a particular installation If the Model 2703 X21 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 plugging the receiving equipment into a different AC outlet such that the computing equipment and receiver are on different branches 1 2 SERVICE All warranty and non warranty repairs must be returned freight prepaid and insured to Patton Electronics All returns must have a Return Materials Authorization number on the outside of the shipping container This number may be obtained from Patton Electronics Technical Service at 301 975 1007 Packages received without an RMA number will not be accepted Patton Electronics technical staff is also available to answer any questions that might arise concerning the installation or use of your Model 2703 X21 Technical Service hours 8AM to 5PM EST Monday t
12. he unit 1 4 Loopback Test Enable Depending upon the setting of switch S1 4 the Model 2703 X21 will either be continually in loopback mode or loopback mode will be enabled by pressing and holding the front panel switch Since the front panel switch is spring loaded it returns to Normal operation when pressure is released this DIP switch provides a way of leaving the Model 2703 X21 in unattended loopback mode for remote test purposes S1 4 Setting On Continual unattended loopback mode Off Loopback activation by front panel switch S1 5 Data Inversion The setting for switch S1 5 determines whether or not the data stream from the local DTE is inverted within the Model 2703 X21 before being passed to the G 703 network The ability to invert the data stream may be necessary when the Model 2703 X21 is being used with an embedded G 703 device that inverts the data on the remote end Normally data inversion is not necessary 81 5 Setting On Data inverted Off Data not inverted 1 6 S1 7 amp 1 8 Not Used 3 2 INTERNAL JUMPER SETTINGS The Model 2703 X21 s seven jumpers are located on the PC board inside the unit To access the jumpers follow these instructions 1 Insert a flat head screw driver into an open slot on either side of the case as in Figure 3 Twist the screw driver head slightly and the top half of the case will separate from the lower half as in Figure 4 below 2 Remove the Network Interface
13. hrough Friday 2 0 GENERAL INFORMATION Thank you for your purchase of this Patton Electronics product This product has been thoroughly inspected and tested and is warranted for One Year parts and labor If any questions or problems arise during installation or use of this product please do not hesitate to contact Patton Electronics Technical Support at 301 975 1007 2 1 FEATURES Synchronous network data rate of 2 048 Mbps Four selectable terminal rates 256 kbps 512 kbps 1 024 Mbps and 2 048 Mbps Supports X 21 terminal interfaces on a DB 15 connector Both 75 ohm BNC and 120 ohm modular network terminations Selectable Internal master or Network slave clocking Loopback test modes Front panel LED indicators for power network master clock and test loop 2 2 DESCRIPTION The Patton Model 2703 X21 G 703 E1 Access Converter wears several hats As an access product the Model 2703 X21 receives unstructured synchronous 2 048 Mbps data from a G 703 network and sends it to a router bridge multiplexer or other device As an interface converter the Model 2703 X21 accepts 120 Ohm twisted pair or 75 Ohm dual coax network connections both types of interfaces provided Then it converts the signals to an X 21 format on a DB 15 connector As a Rate Adapter the Model 2703 X21 lets a lower bandwidth device 256 kbps 512 kbps or 1 024 Mbps connect to a 2 048 Mbps G 703 link The Model 2703 X21 supports Internal
14. it Loop Glows green when the Model 2703 X21 is in loopback mode 13 5 3 LOOPBACK TEST LAL The Model 2703 X21 is equipped with a Local Analog Loopback LAL mode to assist in evaluating the operation of the local Model 2703 X21 Any data sent to the local Model 2703 X21 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 screen To perform a LAL test follow these steps A Activate LAL by moving the front panel toggle switch UP and holding it in the Loopback mode The Loop LED should glow Once LAL is activated the Model 2703 X21 transmit output is connected to its own receiver Note The front panel switch is spring loaded so it will return to Normal operating mode when pressure is released To put the Model 2703 X21 in continual loopback mode for the purpose of performing a BER test move DIP switch S1 4 to the ON position see Section 3 1 B Verify that the data terminal equipment is operating properly and can be used fora test If a fault is indicated call a technician or replace the unit C Perform a BER bit error rate test on each unit If the BER test equipment indicates no faults but the data terminal indicates a fault follow the manufacturer s checkout procedures for the data terminal Also check the interface cable between the terminal and the Model 2703 X21 14 APPENDIX A PATTON M
15. mper settings is required for 75 ohm operation and another combination is required for 120 ohm operation The Model 2703 is factory configured for 75 ohm operation LK1 75 Ohm Transmit Shield to Ground Connection This setting determines whether the shield of the 75 Ohm coax transmit cable is connected to earth ground This connection must be made when operating in 75 Ohm unbalanced mode Conversely this connection must not be made when operating in 120 Ohm balanced mode LK1 Setting Strap On 75 Ohm TX Shield to GND Connection Made Strap Off 75 Ohm TX Shield to GND Connection Broken LK2 75 Ohm Receive Shield to Ground Connection This setting determines whether the shield of the 75 Ohm coax receive cable is connected to earth ground This connection is optional when operating in 75 Ohm unbalanced mode This connection must not be made when operating in 120 Ohm balanced mode LK2 Setting Strap On 75 Ohm RX Shield to GND Connection Made Strap Off 75 Ohm RX Shield to GND Connection Broken LK3 DIP Switch S1 1 Enable This strap is reserved for future use and must remain Off LKS Setting Strap On Not a Valid Setting Strap Off Normal Setting LK4 120 Ohm Shield to Ground Connection This setting determines whether the shield of the 120 Ohm modular cable is connected to earth ground This connection is optional when operating in 120 Ohm balanced mode This connection must not be made when operating in 75 Ohm unbala
16. nced mode LK4 Setting Strap On 75 Ohm RX Shield to GND Connection Made Strap Off 75 Ohm RX Shield to GND Connection Broken LK5 Configuration Auto Sense This setting determines whether the host can automatically sense the configuration of the Applique The operation of the Applique is not affected by this jumper setting Auto sense should be enabled when operating in 75 Ohm unbalanced mode Current interface standards do not list this feature for 120 Ohm balanced mode LK5 Setting Strap On Auto sense enabled Strap Off Auto sense disabled LK6 amp LK7 75 Ohm Termination Impedance This jumper sets the termination impedance correctly for 75 Ohm operation Both jumpers must be in place when operating in 75 Ohm unbalanced mode Conversely both jumpers must be removed when operating in 120 Ohm balanced mode LK6 LK7 Setting On On 75 ohm operation Off Off 120 ohm operation 9 3 3 POWER SUPPLY OPTIONS The Model 2703 X21 is available with three power supply options The Standard power supply option Model 2703 X21 or 2703 X21 230 is factory configured for either 115 or 230 VAC depending on how the product is ordered and is available with a variety of domestic and international power cords see Appendix C The Universal Interface power supply option Model 2703 X21 UI operates in environments ranging from 85 to 265 VAC with no re configuration necessary see Appendix C for available domestic and international po
17. wer cords The DC power supply option Model 2703 X21 DC operates in 48 VDC environments and is equipped with a 3 pin terminal strip style DC power cord WARNING There are no user serviceable parts in the power supply section of the Model 2703 X21 Voltage setting changes and fuse replacement should only be performed by qualified service personnel Contact Patton Electronics Technical support at 301 975 1007 for more information 10 4 0 INSTALLATION Once the Model 2703 X21 is properly configured it is ready to connect to your system This section tells you how to properly connect the Model 2703 X21 to the G 703 network and terminal device interfaces 4 1 CONNECTION TO THE G 703 NETWORK The Model 2703 X21 supports 2 048 Mbps communication over an unstructured G 703 network Both 120 ohm twisted pair and 75 ohm coax interfaces are provided on the rear panel of the Model 2703 X21 see Figure 6 below Be sure the unit is configured properly to operate in either 120 ohm or 75 ohm mode and that the network connection is grounded appropriately see Section 3 0 E dud 2703 X21 DC has terminal strip Network DIE Interface ee il oumme ii O e Figure 6 Model 2703 rear panel 4 1 1 Twisted Pair 120 OHM Connection The Model 2703 X21 is equipped with a single RJ 45 jack for connection to a 120 ohm twisted pair G 703 network interface The pinout of this jack is as follows RJ 45 Pins SIGNAL VB 2 tite
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