RC 907/908 – EV35
Contents
1. DIP switch WAN Interface Rate bit s 3rd Bit 4th Bit sth Bit 22M OFF OFF OFF 21M OFF ON ON gt 512K ON OFF ON gt 256K ON ON OFF gt 64K ON ON ON lt 64K ON ON ON The 6th bit TX CLK phase selection switch It provides various options for different phase relationships of transmitting data and TX clocking at V 35 interface between different brands DCE equipment OFF positive phase default ON negative phase The 7th bit RX CLK phase selection switch It provides various options for different phase relationships of receiving data and RX clocking at V 35 interface between different brands DCE equipment OFF positive phase default ON negative phase The 8th bit Reserved bit The factory default setup of the dip switch DIP switch 1 2 3 4 5 6 7 8 ON OFF u E E E u E E E Details Half Fault Maximum buffer size Positive Positive No duplex Pass phase phase Meaning Through disabled Note 1 Please use the Ist bit to configure the half full duplex mode of converters following the instructions in 2 3 Full Duplex Mode Configuration Chapter 2 RC907 908 EV35 User Guide 2 The 3rd 5th bits of the dip switch can be configured according to the above table to achieve the best transmission performance 3 Only if all bits of the dip switch are set to the factory default status network management software can command configure and2. RJ45 interface on RC907 908 EV35 interface converter are as follows Pin number 1 2 3 4 5 6 7 8 Definition TX TX RX Not Not RX Not Not Used Used Used Used Details Output Output Input Hang Hang Input Hang Hang The following diagram indicates the correct line sequence of straight through UTP cable RC907 908 EV35 UTP RJ45 Ethernet device RJ45 Pin 1 Pin 1 Pin 2 Pin 2 Pin 3 Pin 3 Pin 6 Pin 6 RC907 908 EV35 User Guide The following diagram indicates the correct line sequence of crossover UTP cable RC907 908 EV35 UTP RJ45 Host network card RJ45 Pinl Pin 1 Pin 2 Pin 2 Pin 3 Pin3 Pin 6 Pin 6 In these two connection types Pin 1 and Pin 2 are in a twisted pair and so are Pin 3 and Pin 6 Since RC907 908 EV35 interface converters support MDI MDIX auto sensing function users can adopt either kind of the above cables 4 The V 35 interface adopts HDB26 female connector the definitions are as follows Pin Name Input Output Pin Number Chassis Ground CGND 1 Signal Ground GND 7 Receive Data A RD A I 3 Receive Data B RD B I 21 Receive Timing A RCK A I 17 Receive Timing B RCK B I 25 Send Data A TD A O 2 Send Data B TD B O 11 Send Timing A TCK A I 15 Send Timing B TCK B I 23 Terminal Timing A SCTE A O 24 Terminal Timing B SCTE B O
3. 16 Request to Send RTS O 4 Clear to Send CTS I 5 Data Set Ready DSR I 6 Data Carrier Detect DCD I 8 Data Terminal Ready DTR O 20 I input O output Note It is strictly forbidden to hot swap the V 35 interface with power supply applied RC907 908 EV35 User Guide RC907 908 EV35 interface converter must work in pairs point to point There shall be DCE equipment between two converters It cannot connect with the third party s branded interface converter Ambience Working temperature 0 45 C Humidity 5 90 non condensing Power supply AC DC optional AC 220V 50Hz input ranges form 165 to 265V DC 48V input ranges from 36 to 72V Power consumption lt 5W Dimensions for RC907 EV35 standalone interface converter Dimension 120 width x 32 height x 157 depth mm We recommend that users install and configure the interface converter after reading the next chapter and finishing the relevant preparations RC907 908 EV35 User Guide Chapter 4 Dip switch Setup The configuration dip switch is on the front panel of RC907 EV35 It is on the back panel of RC908 EV35 The definitions of the dip switch are as follows The Ist bit Duplex mode setup This bit is used to configure the duplex mode when the auto negotiation at Ethernet interface fails ON Full duplex mode when auto negotiation fails OFF Half duplex mode when auto negotiation fails default According to the
4. RC 907 908 EV35 Ethernet to V 35 Interface Converter User Manual RC907 908 EV35 User Guide CONTENTS CHAPTER 1 INTRODUCTION wosssscssccssscsessssssseccosevtecsssectnssevastoossvecissessessosvssecsecssesievensosseseasessesee 2 LE PRODUCT INTRODUCTION oso deuce recto redeo eee o e vats sedeeate dudes ase Ene dioe e RUE UR 2 1 2 PRODUCT SPECIFICATIONS 21 tete sects oa reete e YT Fee eU I HUE ee oe ERE PT eene Pe edere de 2 1 3 EXPLANATION FOR THE FRONT PANEL AND INDICATORS ccccscssssssssssssssssssssssesesesssesesssesenenees 4 1 3 1 The Indicators on the Front Panel w ccccccccccccscsscsccccccccsssseccecccccsssssecccccceususcseccsceceussaesceceeeees 4 1 3 2 The Definitions of Indicators eee e tee eret EEEE Ea 4 CHAPTER 2 CONNECTION CONFIGURATION ee eres eese eo ee eee to oeste te esee tone ette toes etta ae 6 2 1 INTERFACE CONVERTER INTERCONNECTION ccessesssceeececeessseceeececsensssseeeeceesenenseseeeeeesenennaaeees 6 2 2 TYPICAT APPLICATIONS 6 hiec eterne ee te ei UE Eee baa EUR Ue eco e EHE Pee vive dede es 6 2 3 DUPLEX MODE CONFIGURATION ccccceessssececececeessssececececseauscecececsesssasaeeececseneaaeaeeeeeesesensaaeees 7 2 4 CONNECTION WITH OTHER NETWORK EQUIPMENT AT ETHERNET PORT eee 7 CHAPTER 3 INSTALLATION AND PREPARATION e eene eee en eee en roe e ee tn oeste ense seen aa 8 CHAPTER 4 DIP SWITCH SETUP eese eee eere es
5. ary to consider other properties when they interconnect with each other The bandwidth setup and clock phase configuration of Rev B are the same as those of Rev A Please consult our technical support if encountering any problem 1 2 Product Specifications V 35 interface Physical characteristics Compliant with V 35 interface standard Connector type HDB26 female connector 26 pin female port Working mode DTE Bit rate Dependent on DCE equipment the maximum bit rate up RC907 908 EV35 User Guide to 8Mbps Ethernet interface Connector type RJ 45 interface CAT 5 enhanced CAT 5 wires and the maximum transmission distance up to 100m Bit rate 10Mbps Duplex mode Full half duplex auto negotiation Compliance IEEE 802 3 Other capabilities 1 The function of reporting V 35 signal loss alarm to Switches 2 Supports IEEE 802 1d Spanning Tree and IEEE 802 1q VLAN protocols 3 Supports over sized Ethernet data frame up to 1595 bytes 4 Supports IEEE 802 3x flow control in full duplex mode 5 Supports back pressure flow control in half duplex mode 6 Built in 1k MAC address table with address filtering capability to improve the efficiency of the V 35 link 7 Built in SDRAM 64M memory to alleviate data congestion Network management capabilities for RC908 EV35 NM software is optional The network management capabilities include 1 Set up the phase relationship between transmit receive data and transmit receive c
6. ason may be that the phase relationship between the data and the clock of DCE V 35 interface is not the same as the configuration of the interface converter Please reconfigure the 6th and 7th bits of the dip switch Severe packet loss Answer The possible reasons for severe packet loss are as follows 1 The duplex mode of the Ethernet interface of the interface converter is not matching with that of the Ethernet equipment Please refer to 2 3 Full Duplex Mode Configuration Chapter 2 RC907 908 EV35 User Guide 2 There is some problem with connection between twisted pair and RJ 45 connector 3 Ifthere are bit errors in V 35 link please check equipment alarm function or test bit error rate of V 35 link by bit error tester 4 If the traffic through converter increases suddenly it may cause congestion within a short time and result in disconnection of the network In this case the network service with huge amount of traffic should be paused and restarted after 10 seconds and the network will be back to normal condition However if a long time disconnection occurs it is abnormal Please check the operation condition of equipments To improve the network efficiency both the Ethernet equipment and the interface converter shall be set in full duplex mode with great attention to the matching of working modes RC907 908 EV35 may not be suitable for some IP based image transmission equipments Since the bit rate of pinging large si
7. e network The recommended configurations are listed in the following table when interconnecting different network equipment The working mode of other network RC907 908 EV35 working mode equipment 10Mbps full duplex The interface converter shall be configured to full duplex mode when auto negotiation fails 10Mbps half duplex The interface converter shall be configured to half duplex mode when auto negotiation fails Factory default Auto negotiation No need for configuration Factory default 100Mbps full duplex The interface converter cannot connect with 100Mbps interfaces of other equipment 100Mbps half duplex The interface converter cannot connect with 100Mbps interfaces of other equipment 2 4 Connection with other network equipment at Ethernet port RC907 908 EV35 series interface converter supports MDI MDIX auto sensing RC907 908 EV35 User Guide Chapter 3 Installation and Preparation 1 First please choose the appropriate configuration structure to be applied referring to the sketch map of recommended basic connection structure 2 Make sure that the V 35 cable matches the connected equipment If RC907 908 EV35 interface converter is used to connect DCE please use DTE cable 3 Use CAT 5 UTP to connect the Ethernet port of RC907 908 EV35 interface converter and make sure that the length of the UTP cable does not exceed 100m NO 1 pt NO 8 pin The pin definitions of the
8. ee enne seen tese teen nest ee tn ee eee eee seen aee teen eese en a 11 CHAPTER 5 TROUBLESHOOTING eeeeee enne ee ennt tatu nons ta suat n statu sons ta snas statu sens ta sn sno 14 RC907 908 EV35 User Guide Chapter 1 Introduction 1 1 Product Introduction RC907 908 EV35 series interface converter or media converter is designed to transmit Ethernet data over V 35 network Since more and more V 35 network resources are being deployed various types of data transmission solutions that make use of V 35 links will be widely accepted by end users RC907 EV35 series interface converters are standalone interface converters Every unit of device has an independence built in power supply and can be placed on the table RC 908 EV35 series interface converters are slide in modular interface converters They can be installed into Dynamix RC series 16 slot chassis 19 3U high chassis or 4 slot chassis 19 1U high chassis or single slot chassis When installed into 16 slot or 4 slot chassis it can be mixed with other Dynamix Series products e g copper to fiber media converters single port optical multiplexers to enable uniform network management RC 907 EV35 interface converters can be deployed at the remote site to work in pairs with RC908 EV35 RC907 908 EV35 Rev B has interoperability with the previous version Rev A The differences between the two versions are only at Ethernet interfaces So it is not necess
9. etails of the interface definition and cable connection RC907 908 EV35 User Guide Chapter 2 Connection Configuration 2 1 Interface Converter Interconnection When connecting interface converters it is required to comply with the specific connection article numbers according to the following table Otherwise the link will not be established or abnormal data transmission will occur The Host Site The Remote Site RC908 EV35 RC908 EV35 RC908 EV35 RC907 EV35 2 2 Typical Applications Interface Interface Converter Converter 10Base T Ethernet switch DDN leased line is utilized to extend the data transmission distance of Ethernet IEEE802 1q protocol is supported to ensure the key features of most mainstream products such as between switch VLAN and TRUNK functions RC907 908 EV35 series interface converters can be used to provide private DDN network solutions for organizations and departments such as finance government and education etc 9 RC907 908 EV35 User Guide 2 3 Duplex Mode Configuration RC907 908 EV35 series Ethernet to V 35 interface converters are devices used to conduct media conversions and extend transmission distances When connecting RC907 908 EV35 interface converters with other network equipment they need to cooperate with each other to work properly Different duplex mode configurations on network equipment interfaces will affect the transmission efficiency of th
10. inquire the status of the interface converter Otherwise the software has the inquiry function only After finishing the above steps the power supply of the device can be switched on If there is any problem please refer to the last chapter Troubleshooting for operation and maintenance RC907 908 EV35 User Guide Chapter 5 Troubleshooting If there is any problem during the installation and operation please try the following solutions If the problem cannot be solved yet please contact distributors for technical support PWR indicator is not on Answer Power supply fails Check whether the power supply is working properly and make sure the power cable for 48V DC is not reversely connected Link indicator LNK is off Answer Please check if the link is disconnected Please check whether the bit rate matches The bit rate of the Ethernet equipment interface connected with the interface converter should be auto negotiation or fixed 10Mbps LNK is on and ACT is flashing rapidly and continuously but the equipment cannot be pinged through Answer In most cases the reason is that the interface converter is connected with 100Mbps network equipment RC907 908 EV35 can only connect with 10Mbps or auto negotiation interfaces Please verify the bit rate of the connected network equipment LNK is on and ACT is flashing intermittently at normal status but the equipment cannot be pinged through Answer The re
11. lock at V 35 interface Set up of the buffer capacity Report operating status of Ethernet port to SNMP server Set up full half duplex mode at Ethernet interface Set up fault pass through function Close the Ethernet interface and disable the modular through NMS software 7 Keep history record of all events Qx Um dx eh RC907 908 EV35 User Guide 1 3 Explanation for the Front Panel and Indicators 1 3 1 The Indicators on the Front Panel Ethernet Link ETH Data TX RX Action ENENEN 12345678 Power Supply Full Duplex Figure 1 The front panel of RC907 EV35 Ethernet Li ETH Data TX RX Action LNK A3 8060I PWR UTP FDX Power Supply Full Duplex Figure 2 The front panel of RC908 EV35 1 3 2 The Definitions of Indicators Ethernet Link LNK On Ethernet link is properly connected Off Ethernet link is disconnected Ethernet data TX RX Action ACT Flashing Transmitting or receiving data Full Duplex Mode FDX On Full duplex mode Off Half duplex mode Power supply PWR On The power supply is in good condition Off The power supply is disconnected RC907 908 EV35 User Guide The connector types of the interface are as the following V 35 interface The DTE connector HDB26 female connector Please refer to Chapter 3 for details of the interface definition and cable connection Ethernet interface The UTP connector Unshielded twisted pair connector for Ethernet Please refer to Chapter 3 for d
12. port of user devices this bit should be configured as follows Port of User Devices The 1st Bit Setup Actual Working Mode 10 100Mbps auto negotiation Any 10Mbps full duplex mode Forced 10Mbps half duplex OFF 10Mbps half duplex mode Forced 10Mbps full duplex ON 10Mbps full duplex mode lOMbps full half duplex Any 10Mbps full duplex mode auto negotiation Since the Ethernet interface of RC907 908 EV35 works at 10Mbps full half duplex mode auto negotiation it cannot be connected with the forced 100Mbps interface of other equipment The 2nd bit Fault Pass Through function setup On Fault Pass Through function enabled In this case the DSR alarm of V 35 interface can lead to complete failure of the Ethernet port and the link fault will be reported to the Switch When the DSR alarm of V 35 interface disappears the Ethernet port will automatically recover Off Fault Pass Through function disabled factory default In this case the DSR alarm will not have effect on the Ethernet port The 3rd 5th bit Buffer size setup Since the bit rate of V 35 interface 1s dependent on the rate of connected DCE equipment it varies in large range It is necessary to adjust the size of buffer It can RC907 908 EV35 User Guide not only prevent long time delay but also avoid packet loss caused by sudden data flooding It is suggested that the buffer size be configured as the following table
13. ze packets may exceed transmission capability of V 35 link many packet losses may occur To solve this problem please try to increase the timeout parameter of the Ping command Network management software can only review but not conduct configuration Answer The possible reason is that some bits of the dip switch are not set on the default status Please refer to Chapter 4 for details
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