Perle Systems P850 manual

Perle P850 Bridge / Router USER AND SYSTEM ADMINISTRATION GUIDE Part number 5500086-14 © Copyright 2002 Perle Systems Ltd.[...]

Federal Communications Commission (FCC) Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment genera[...]

Canadian Emissions Standard ICES -003 This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference -causing equipment standard entitled “Digital Apparatus”, ICES -003 of the Department of Communications. Cet appareil numérique respecte les limites de bruits radioélec[...]

Using This Manual This Installation and Applications Guide provides the basic information required to initially set up and configure the P850 router. This guide is organized into the following sections: “ Installation ” provides instructions for installing the P850 router. “ Typical Applications & How to Configure Them ” provides simple[...]

Using the Electronic Reference Manual The P850 router Reference Manuals are provided as Adobe Acrobat PDF files on the accompanying CD-ROM. The PPP Menus Reference File is provided individually for ease of configuration reference. The Adobe Acrobat Reader program is included on the CD-ROM. It is also available for most computer operating platforms [...]

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Contents 1 - INSTALLATION 4 Unpack the P850 4 Select a Site 4 Identify the Connectors 5 Connect to the Console 6 Make the LAN Connections 6 Make the WAN Link Connection 6 Power Up the Router 8 Login and Enter the Required Configuration 8 Mandatory Configuration 9 Setting the Link Interface Type (Universal WAN only) 10 Setting the T1/E1Parameters (T[...]

Configure Remote Site Profiles for PPPoE 55 QOS - Priority Queuing 59 3 - INTRODUCTION TO FILTERING 61 MAC Address Filtering 61 Pattern Filtering 62 Popular Filters 65 Bridge 65 IP & Related Traffic 65 Novell IPX Frames 65 NetBIOS &NetBEUI (Microsoft Windows) 65 Banyan 66 IP Router 66 NetBIOS over TCP 66 Other interesting TCP Ports 66 APPEN[...]

Contents RS232C / V.24 Link Pinouts 85 RS530 / RS422 Link Pinouts 86 V.11 / X.21 Link Pinouts 87 V.11 / X.21 DB25 to DB15 Connector Cable 88 V.35 Null-Modem Cable Configuration 89 The link speed must be defined for each of the two units. 89 RS232 / V.24 Null-Modem Cable 90 RS530 / RS422 Null-Modem Cable 91 APPENDIX D SOFTWARE UPGRADES 92[...]

4 1 - I NS TALLATION The P850 is an Ethernet Bridge/Router that provides bridging, IP/IPX routing, and compression over a frame relay permanent virtual circuit or a PPP leased line circuit.. The following instructions provide a quick set-up guide for installation of the P850 router Unpack the P850 Rough handling during shipment can damage electroni[...]

Installation 5 Identify the Connectors Each unit is configured with both straight (MDI) and crossed over (MDI-X) 10BaseT LAN connectors; the P850 will auto-sense between the two. Only one connector may be used at a time. The P850 router is produced with four different WAN interface modules: V.35, CSU-DSU, Universal WAN or T1/E1. The type of module [...]

Installation 6 Connect to the Console Connection to the router operator’s console is made through the RJ-45 connector labeled CONSOLE on the back of the router. A RJ-45 cable and RJ-45 to DB9 (female) converter are provided for connection to a DB9 (male) connector. Connect the console port of the P850 router to a computer running an asynchronous [...]

Installation 7 it must be configured to the type of connection service that will be used; please see the following section for this procedure. The V.35 module and Universal WAN module in V.35 mode require interface converters that convert from a DB25 connector to a male 34 pin (V.35) connector used for the V.35 service interface. Be sure to secure [...]

Installation 8 Power Up the Router Once the LAN and Link connections are made and the console is connected to a terminal, you are ready to power-up the P850 router. Connect the DC power cord from the supplied power supply to the back of the P850 router and plug the power supply into the AC wall outlet. Observe the LEDs as the router powers up. The [...]

Installation 9 Mandatory Configuration The P850 router requires a minimum amount of mandatory configuration in order to operate. The following table identifies the configuration parameters that must be defined for proper operation under the operational states shown in the table. Mandatory Configuration Bridge IP Router IPX Router None IP Address no[...]

Installation 10 Setting the Link Interface Type (Universal WAN only) The Universal WAN Interface must be configured to match the service to which it will be connected. WARNING: ensure that the connector cable used with the Universal interface module has the correct pinouts for the operational mode selected for the interface (V.11/X.21, V.35, RS232/[...]

Installation 11 Setting the T1/E1Parameters (T1/E1 WAN only) The parameters requred for a T1 or E1 connection may be obtained from your service provider. These may then be entered via the T1/E1 set-up menu to configure the router for that service. T1/E1 Selection: Location: Main Ä Configuration Ä WAN Set Up Ä Link Set Up Ä T1/E1 Set Up Ä Link [...]

Installation 12 provider will tell you which specification their service requires. Short haul LBOs are listed as the length of the cable run (in feet) between the router and the local exchange. E1 service does not require line build out selection. Set Link Interface Type: Location: Main Ä Configuration Ä WAN Set Up Ä Link Set Up Ä T1/E1 Set Up [...]

Installation 13 Some E1 service providers reserve timeslot 16 for network management use. If your service specifies that timeslot 16 is for their use, toggle this option to reserved Set Link Interface Type: Location: Main Ä Configuration Ä WAN Set Up Ä Link Set Up Ä T1/E1 Set Up Ä Slot/Channel Set Up Ä E1 Timeslot 16 reserved 7[...]

Installation 14 Identify the Status LEDs The meanings of the four 3-colour Light Emitting Diodes (LEDs) on the front of the P850 router are found in the following chart: Green Router is running and has passed power-up diagnostics Green (flashing) Router is in BOOT mode and is programming the flash Red Router is powered up but has failed power-up di[...]

Installation 15 Figure 1-4 Front View of the P850 router Tx Rx Power[...]

16 2 - T YPICAL A PPLIC ATIONS & H OW TO C ONFIGURE T HEM The P850 is an Ethernet Bridge/Router that supports frame relay RAW 1490 permanent virtual circuits, frame relay encapsulated PPP permanent virtual circuits and PPP leased lines. This section will describe how to set up the P850 using each of its networking functions. The P850 may be con[...]

Applications 17 Managing the P850 Using Menus This section describes the minimum configuration parameters required when setting up the P850. Each of the configuration scenarios requires setting of operational parameters on the P850. The built-in menu system of the P850 is used to configure the unit. When navigating around the menu system, a new men[...]

Applications 18 Conventions Throughout this section , P850 menu options are shown that are required for the various configuration choices. The appropriate menu options are shown in each instance in the following format: Configuration Option Name Location: Main Ä Sub-Menu Name Ä Sub-Menu Name Ä Option Name The configuration option is shown as wel[...]

Applications 19 Basic Frame Relay Configuration North American P850s are configured to have frame relay enabled as the default setting. With frame relay enabled, the router will communicate over WAN connections to other frame relay units via frame relay Permanent Virtual Circuits (PVC). From 1 to 40 PVC’s may be defined to connect to other frame [...]

Applications 20 Configuration: The default configuratio n for P850s shipped outside North American is to have frame relay disabled. To run frame relay on these routers, it must first be enabled 7 Frame Relay enable Location: Main Ä Configuration Ä WAN Set up Ä Link Set up Ä Frame Relay enabled The router will request confirmation of the change,[...]

Applications 21 Auto Learning the Frame Relay Configuration The P850 is pre-configured to query the frame relay service to auto- learn the LMI type and the PVC DLCI numbers. This auto-learn function allows the P850 to be plugged into the frame relay service and auto-learn the PVC configuration to become operational without further manual configurat[...]

Applications 22 Manual Configuration - LMI Type The LMI Type option allows you to manually specify the type of Link Management Interface in use by the Frame Relay service provider for the Frame Relay service. When the LMI type is set to none, the P850 simply creates frame relay packets and sends them on the defined PVC’s. The links are not checke[...]

Applications 23 “Quick Start” Frame Relay Since the P850 auto-learns the frame relay configuration, only a couple of parameters need to be configured before the unit is fully operational as an IP router for frame relay. Upon initial start up, the P850 is pre-configured to query the frame relay service to auto-learn the LMI type and the PVC DLCI[...]

Applications 24 By default, PPP is disabled for each of the newly created remote site profiles. If PPP encapsulation is desired, for example to use security, the PPP encapsulation option should be set to “enabled”. By default, when PPP encapsulation is enabled multilink is also enabled. 7 PPP Encapsulation Location: Main Ä Configuration Ä WAN[...]

Applications 25 Basic Leased Line Configuration P850s shipped outside North America are configured to have a default setting as a leased line router. The P850 will operate as a PPP leased line bridge/router if the frame relay function is disabled. The Leased Line P850 establishes PPP (Point to Point Protocol) WAN connections to other PPP Leased Lin[...]

Applications 26 Figure 2 - 2 Basic PPP Leased Line Configuration The following steps must be performed on the P850 unit. 7 Link Speed Location: Main Ä Configuration Ä WAN Set up Ä Link Set up Ä Link Speed The clock speed that the P850 will expect to receive from the DCE link device must be defined. 7 Local IP Address Location: Main Ä Configura[...]

Applications 27 Bridge Connection. Once the link speeds have been configured, the P850 will attempt to establish the link connection to the remote site PPP router. The Bridge connection does not require any configuration for operation. IP Router Connection. Once the link speeds and local IP address have been configured, the P850 will attempt to est[...]

Applications 28 Should You Bridge or Route? When connecting two Local Area Networks together, the first question to ask is should I bridge or route? The decision to bridge or to route may be decided by how the existing networks have been already set up. Bridging should be used when the network consists of non-routable protocols or routable protocol[...]

Applications 29 Configure as an Ethernet Bridge An Ethernet bridge intelligently forwards LAN traffic to remotely connected LANs across the Wide Area Network (WAN). Figure 2 - 3 Bridged Local Area Networks Ethernet bridges simply forward information based on Ethernet MAC addresses. If a LAN packet is destined for a device located on a remote LAN, t[...]

Applications 30 The P850 router also is pre-configured as an IPX router. This means that if you wish to bridge IPX traffic instead of routing it, you must disable the IPX routing function of the P850 router. Once IPX routing has been disabled, all IPX traffic will be bridged between partner bridges on the WAN. The two Local Area Networks may be bri[...]

Applications 31 The size of the subnet mask. defines the subnet mask by using the specified number to reserve a series of contiguous bit locations from the start of the entire IP address. These reserved bit locations are then used as the network portion of the IP address. For example, with a class C IP address, a subnet mask size of 26 will mask th[...]

Applications 32 Configure as an Ethernet IP Router An Ethernet IP router is used to intelligently route Internet Protocol (IP) LAN traffic to remotely connected LANs across the WAN. Figure 2 - 4 IP Routed Local Area Networks IP routers forward IP frames based upon their IP destination address and an internal routing table. The router maintains the [...]

Applications 33 7 IP Address Location: Main Ä Configuration Ä LAN Set-up Ä LAN IP Set-up Ä IP Address / Subnet mask size The IP address consists of four 8-bit numbers and is represented by 4 fields separated by periods (“ . ”), where each field is specified by a decimal number (e.g. 199.169.1.10). Each decimal number must be less than or eq[...]

Applications 34 Define an IP Default Gateway An IP default gateway is an IP router that is resident on the local IP network that this P850 is connected to and is used to route IP frames for destination networks that do not exist in the routing tables. When an IP frame is received that is destined for a network that is not listed in the routing tabl[...]

Applications 35 Define an IP Static Route Static IP routes may be defined when one specific router is to be used to reach a destination IP network. The static route will have precedence over all learned RIP routes even if the cost of the RIP learned routes is lower. 7 Edit Static Route Location: Main Ä Configuration Ä IP Routing Set up Ä IP Rout[...]

Applications 36 Define an IP Subnet Mask An IP network may be divided into smaller portions by a process called sub-netting. A subnet is specified using high end bits of the host field of the IP address for network addressing. This is done with a subnet mask. Thus, the size of the subnet (i.e. The number of bits available for subnet addressing) is [...]

Applications 37 Configuration: The mask size entered defines the size of the subnet mask from the start of the entire IP address. This allows subnet sizes from 0 to 24 bits. A subnet mask size of 8 in a class A address represents a subnet size of 0 or no subnetting performed. Figure 2 - 5 Defining an IP Subnet Mask To configure the P850 routers to [...]

Applications 38 less than or equal to 255, that is the maximum value of each 8-bit field. The IP address is first specified and then you will be prompted to enter the mask size. The mask size defines the subnet mask by using the specified number to reserve a series of contiguous bit locations from the start of the entire IP address. These reserved [...]

Applications 39 Configure as an Ethernet IPX Router The P850 is preconfigured to operate as an IPX router when installed in an IPX network. The P850 router will learn the IPX network numbers from the local LAN and when the WAN connections are established, the P850 will route the IPX frames to the appropriate destination IPX network. The IPX routing[...]

Applications 40 examined and looked up in the routing tables. Once the destination IPX address is found in the routing tables, the IPX router sends the IPX frame to the remote partner P850 router that is connected to the appropriate remote IPX network. To configure the P850 to be an IPX router when both LAN segments contain Novell servers, the IPX [...]

Applications 41 Novell Servers in One Location Only Some Novell LAN installations require that a remote LAN that consists of only Novell IPX clients be connected to a central LAN that contains the Novell servers and some more clients. In this configuration, the P850 located at the remote site must be configured with the appropriate IPX network numb[...]

Applications 42 7 IPX Frame Types Location: Main Ä Configuration Ä IPX Routing Set up Ä Configure LAN Nets Ä Ethernet-II Frames Ä RAW 802.3 Frames Ä IEEE 802.2 Frames Ä 802.2 SNAP Frames Define the appropriate IPX network number for the appropriate frame type. Note that IPX network numbers must be unique. If more than one frame type is to be[...]

Applications 43 PPP Link Configuration Overview A PPP (Point to Point Protocol) connection between two routers may use a number of Network Control Protocols (NCP) for communication. An IP router connection will use the Internet Protocol Control Protocol (IPCP) NCP for all IP communications. An IPX router connection will use the Internet Packet Exch[...]

Applications 44 remote site profile settings. The WAN IPX network number is defined with the IPX Net option in the remote site profile settings. Unnumbered Links An unnumbered link does not use network addressing on the WAN link. The WAN connection is roughly equivalent to an internal connection with each of the two end point routers operating as h[...]

Applications 45 Configure Dynamic Host Configuration Protocol The P850 uses Dynamic Host Configuration Protocol (DHCP) to allow users in a small office environment to simply enable DHCP clients on their workstations and power them up to get their proper initialization. You would then be able to use TCP/IP applications (such as connecting to the Int[...]

Applications 46 devices attached to the DHCP Server to be set. The number of addresses to be assigned must also be specified to a maximum of 253. With the DHCP Services and IP Address Pool defined, devices may be attached to the network (up to the maximum specified) and they will be automatically configured. When setting up a router as a DHCP serve[...]

Applications 47 Configure Network Address Translation (NAT) Support is provided for Network Address Translation (NAT). Network Address Translation is a technique which translates private IP addresses on a private network to valid global IP addresses for access to the Internet. Port translation (NAPT) allows more than one private IP address to be tr[...]

Applications 48 The Translation Type option allows you to use Network Address Port Translation. 7 Translation type Location: Main Ä Configuration Ä WAN Set up Ä Remote Site Set up Ä Edit Remote Site Ä Protocol Set up Ä IP Parameters Ä NAT Advanced Ä Translation type Ä Port The configuration options described here are only for initial set u[...]

Applications 49 Configure PPP Security The P850 provides support for both PAP and CHAP PPP security authentication. An outgoing user name, PAP password , and CHAP secret are defined that the P850 will use when responding to an authentication request from a remote site PPP router. The cold start defaults for the security user name and passwords are [...]

Applications 50 7 Security Database Entry Location: Main Ä Configuration Ä WAN Set up Ä Edit Remote Site Ä Security Parameters Ä Incoming PAP Password Ä Incoming CHAP Secret Ä Outgoing User Name Ä Outgoing PAP Password Ä Outgoing CHAP Secret The security entries in the security database define the user names and passwords that remote site [...]

Applications 51 Configure Firewall The P850 provides Firewall security for restricting access between any two networks connected through the router. Firewalls are set up on a per connection basis for the LAN and remote sites. The direction of filtering is from the perspective of the P850; incoming traffic is from the network in question to the P850[...]

Applications 52 also wishes to allow all of the TCP traffic from the branch office network to have access to the head office. Anyone in the corporation may have unrestricted access to the Internet. The following steps must be performed on the P850 to set up the firewall support as desired. First the firewall on the ISP connection (remote site 1) of[...]

Applications 53 designated servers list allows you to quickly setup a firewall entry without having to figure out TCP port values. Next, the LAN firewall is set up to restrict access to the LAN. The firewall option is set to “outbound” to have the LAN firewall filter traffic from the P850. 7 Firewall LAN Filter Direction Location: Main Ä Confi[...]

Applications 54 Firewall Location: Main Ä Configuration Ä Applications Set up Ä Firewall Set up Ä LAN Firewall Set up Ä Designated Servers Ä FTP Server — 195.100.1.12 Ä WWW (HTTP) Server — 195.100.1.20 The configuration options described here are only for initial set up and configuration purposes. For more information on all of the confi[...]

Applications 55 Configure Remote Site Profiles for PPPoE Remote Site Profiles allow for the router to be configured to support PPP over Ethernet (PPPoE) client on the router. The PPPoE feature on the Perle routers provide a PPPoE client support on Ethernet interfaces to a bridging DSL modem to the Internet. This feature will create a PPP tunnel to [...]

56 To verify that PPPoE is enabled for this remote connection, view the read-only parameter Location: Main Ä Configuration Ä WAN Set-UP Ä Remote Site Set-Up Ä Edit Remote Site Ä Protocol Set-Up Ä PPPoE Ä enabled When setting up your PPPoE link with your ISP provider, one global IP addresses will be provided that should be used for the PPPoE [...]

Applications 57 TCP mss option should decrease to 1452 bytes. Therefore when configuring the router for PPPoE, the remote site NAT configuration automatically adjust its TCP mss option to 1452 to accommodate this requirement. To verify this value has been adjusted: Location: Main Ä Configuration Ä WAN Set-Up Ä Remote Site Set-up Ä Protocol Set-[...]

Applications 58 To ensure that network traffic is routed to the PPPoE connection, the router must be configured to have the default IP gateway setup to your newly created PPPoE remote site connection. Location: Main Ä Configuration Ä IP Routing Set-up Ä Gateway Ä PPPoE remote site alias[...]

Applications 59 QOS - Priority Queuing Priority Queuing (PQ) allows the users to configure the router to allow specific traffic bound for an outgoing interface to be prioritized into high, medium, normal and low queues. Packets sent to the high priority queue are serviced first, followed by the packets on the medium queue and so on. The router can [...]

Applications 60 To assign a Priority List to a LAN interface 7 Location: Main Ä Configuration Ä Lan Set-up Ä QOS Set-up Ä Queuing Strategy Ä Priority Ä Priority List Number To assign a Priority List to a Remote Site Configuration 7 Location: Main Ä Configuration Ä Wan Set-up Ä Remote Site Set-up Ä Edit Remote Site Ä Protocol Set-up Ä QO[...]

61 3 - I NTRODUCTION TO F ILTERING The P850 provides programmable filtering which gives you the ability to control under what conditions Ethernet frames are forwarded to remote networks. There are many reasons why this might need to be accomplished, some of which are security, protocol discrimination, bandwidth conservation, and general restriction[...]

Introduction to Filtering 62 You may easily prevent stations on one segment from accessing all but a specific resource on the other segment; for this, “negative” filtering and the use of “Forward if Destination” would be appropriate. If you want to disallow all but one specific station from accessing any service on the other segment, the us[...]

Introduction to Filtering 63 The following operators are used in creating Pattern filters. - offset Used in pattern filters to determine the starting position to start the pattern checking. Example: 12-80 This filter pattern will match if the packet information starting at the 12 th octet equals the 80 of the filter pattern. | OR Used in comb inati[...]

Introduction to Filtering 64 ( ) brackets Used in pattern filters to separate portions of filter patterns for specific operators. Example: 12-80&(14-24|14-32) This filter pattern will be checked in two operations. First the section in brackets will be checked and then the results of the first check will be used in the second check using the fir[...]

Introduction to Filtering 65 Popular Filters S ome of the more commonly used pattern filters are shown here. Bridge Bridge pattern filters are applied to Ethernet frames that are bridged only. When the P850 is operating as a router, all routed frames will be unaffected by the bridge pattern filters. IP & Related Traffic IP & Related Traffic[...]

Introduction to Filtering 66 Banyan Banyan (12-0BAD) (12-80C4) (12-80C5) IP Router IP router pattern filters are applied to IP Ethernet frames that are being routed. When the P850 is operating as an IP router, all IP routed frames will be checked against the defined IP router pattern filters. IP routed frames are unaffected by the bridge pattern fi[...]

67 A PPENDIX A M ENU T REES The menu trees on the next few facing pages are a graphical representation of the hierarchy of the built-in menu system of the P850. The menus are shown with the options of the menus being displayed below the specific menu name. Each of the menu options shown in the menu tree is explained in the accompanying P850 menu re[...]

68 1 Configuration 1. T erminal 2. Show 3. Add 4. Remove 1. T erminal Set-Up menu 2. Device Set-Up menu 3. T elnet Set-Up menu 4. Load FLASH Set-Up menu 5. Console 6. Hardware Status 7. TFTP access Access Set-Up 1] 1] 1] 2] 2] 3] 4] 5] 1. Password 2. Device Name 3. Show Time 4. Set Time 1. T elnet access 2. T elnet 3. T elnet port 4. Show Names 5. [...]

69 Continued from previous page 1. Destination 2. Status 3. Remote site 2. Next hop 3. Type 4. Cost 5. Private 6. Add/Remove 8. Status 7. Network mask 1. IP Routes menu 1. Edit Static Route 2. Default Gateway 3. Show all Routes 4. Show Static Routes 5. Clear Static Routes 1. Edit Route 1. Edit Service 2. ARP Set-up menu 3. IP routing 4. IP forwardi[...]

70 A PPENDIX B O CTET L OC ATIONS ON E THERNET F RAMES This appendix provides octet locations for the various portions of three of the common Ethernet frames. When creating pattern filters these diagrams will assist in the correct definition of the patterns. The offset numbers are indicated by the numbers above the frame representations. Note the d[...]

Octet Locations on Ethernet Frames 71 Octet Locations on a Bridged TCP/IP Frame Octet Locations on a Bridged Novell Netware Frame[...]

Octet Locations on Ethernet Frames 72 ETHERNET Type Codes Type Code Description 0800 DOD IP 0801 X.75 Internet 0804 Chaosnet 0805 X.25 Level 3 0806 ARP 0807 XNS Compatibility 6001 DEC MOP Dump/Load 6002 DEC MOP Remote Console 6003 DEC DECNET Phase IV Route 6004 DEC LAT 6005 DEC Diagnostic Protocol 6006 DEC Customer Protocol 6007 DEC LAVC, SCA 8035 [...]

Octet Locations on Ethernet Frames 73 Octet Locations on an IP Routed TCP/IP Frame Octet Locations on an IPX Routed Novell Netware Frame[...]

Octet Locations on Ethernet Frames 74 Octet Locations on a Bridged XNS Frame[...]

75 A PPENDIX C S ERVICING I NFORM ATION Opening of the case is only to be performed by qualified service personnel. WARNING ! Before servicing ensure that appliance coupler is disconnected. Always disconnect the power cord from the rear panel of the bridge/router. Geraetesteckvorrichtung trennen vor den Wartung. Opening the case 1) Remove power fro[...]

Servicing Information 76 Identifying the Internal Components The major components and the jumper strap positions are shown: Figure C- 1 Top Internal View of the P850 router V.35 or Universal WAN interface Power V .35 / Universal Sanity Timer - Always ON Return Password to Default Force ZMODEM SW Upgrade J2 10BaseT C o n s o l e M D I M D I - X CPU [...]

Servicing Information 77 Figure C-2 Top Internal View of the P850 CSU-DSU or T1/E1 Power CSU/DSU T1/E1 S an i t y T i m e r - A l w a y s O N R e t u r n P a ss w o r d t o D e f au l t F o r c e Z M O D E M S W U pg r ade J1 10BaseT C o n s o l e M D I M D I - X CPU 2 1[...]

Servicing Information 78 Sanity Timer Do not remove this strap – pins 1-2. Force ZMODEM Software Load On the rare occasion that during the programming of the FLASH something happens to the bridge/router (power hit or hardware reset), causing the FLASH to become corrupted, the bridge/router will restart in ZMODEM receive mode only. If the bridge/r[...]

Servicing Information 79 Connecting to the Console Connector The console connector on the P850 is a DCE interface on a RJ45 pinout. The supplied DB9 to RJ45 converter should be used to connect to the DB9 connector of a DTE terminal. This connection will then provide access to the built-in menu system. If the console interface is to be connected to [...]

Servicing Information 80 WAN Interface Connection Pinout Information The P850 router is manufactured with three different WAN link modules: V.35, LXT411 CSU/DSU or Universal WAN. The type installed may be determined from the label above the WAN link output connector on the back of the router. V.35 Module: The V.35 link interface is provided as a DB[...]

Servicing Information 81 The LXT411 CSU/DSU link connection is set to operate at 64 Kbps by default. The link may be set to 56 Kbps via the software menus if required. When two CSU/DSU link routers are to be connected via a leased line in a back to back set-up, the unit must be set to 56 Kbps link speed and a null-modem crossover cable used for the[...]

Servicing Information 82 UNIVERSAL WAN Module: The Universal WAN Interface module in this router may be configured to operate in one of four modes: V.11/X.21, V.35, RS232/V.24, or RS530/RS422. The interface connector for all types is a standard DB25 pin female connector. 13 1 25 14 WARNING: ensure that the connector cable used with the Universal WA[...]

Servicing Information 83 V.35 Link Pinouts DB25 Contact No. M.34 Contact No. Circuit Name Direction To From DCE DCE 1 A Protective Ground NA 2 P Transmitted Data (A) X 3 R Received Data (A) X 4 C Request to Send X 5 D Clear to send X 6 E Data Set Ready X 7 B Signal Ground NA 8 F Data Channel Received Line Signal Detector X 9 X Receiver Signal Eleme[...]

Servicing Information 84 Circuits which are paired (contain an (A) and (B) reference) should be connected to twisted pairs within the connecting cable. NOTE For U.K. Approval: The connecting cable may be any length between 0 and 5M. One end must be terminated in a male 34 pin X.21 bis connector as defined in ISO -2593 198 4. The other end must be t[...]

Servicing Information 85 RS232C / V.24 Link Pinouts Con tact No. Circ uit Circuit Name Direction To From DCE DCE 1 AA Protective Ground NA 2 BA Transmitted Data X 3 BB Received Data X 4 CA Request to Send X 5 ---------- 6 CC Data Set Ready X 7 AB Signal Ground NA 8 CF Received Line Signal Detector (CD) X 9 ---------- 10 ---------- 11 ---------- 12 [...]

Servicing Information 86 RS530 / RS422 Link Pinouts Contact Number Circuit Circuit Name Direction To From DCE DCE 1 Shield Protective Ground NA 2 BA (A) Transmitted Data X 3 BB (A) Received Data X 4 CA (A) Request to Send X 5 CB (A) Clear to Send X 6 CC (A) Data Set Ready X 7 AB Signal Ground NA 8 CF (A) Received Line Signal Detector X 9 DD (B) Rec[...]

Servicing Information 87 V.11 / X.21 Link Pinouts Contact No. X.21 Circuits Ref. Circuit Name Direction To From DCE DCE 1 Protective Ground NA 2 T (A) Transmitted Data (A) X 3 C (A) Control (A) X 4 R (A) Received Data (A) X 5 I (A) Indication (A) X 6 S (A) Signal Element Timing (A) X 7 ---------- 8 Ground Signal Ground NA 9 T (B) Transmitted Data ([...]

Servicing Information 88 V.11 / X.21 DB25 to DB15 Connector Cable Figure C- 10 V.11 / X.21 DB25 to DB15 Connector Cable NOTE For U.K. Approval: The connecting cable may be any length between 0 and 5M. DB25 MALE 1 DB15 MALE 2 3 10 8 20 16 12 23 1 4 8 5 12 13 9 6 11 3 10 Protective Ground Transmit Data (A) Receive Data(A) Indication (A) Signal Elemen[...]

Servicing Information 89 V.35 Null-Modem Cable Configuration Figure C - 11 V.35 Null-Modem Cable The connecting cable must be a shielded cable. Circuits which are paired (contain an (A) and (B) reference) should be connected to twisted pairs within the connecting cable. This cable is needed when it is necessary to connect two units back-to- back an[...]

Servicing Information 90 RS232 / V.24 Null-Modem Cable Figure C-12 RS232 / V.24 Null-Modem Cable The connecting cable must be a shielded cable. This cable is needed when it is necessary to connect two units back-to-back and a set of modems is not available. Note that this cable specifies DB25 connectors on each end to allow direct connection to the[...]

Servicing Information 91 RS530 / RS422 Null-Modem Cable S h i e l d T r a n s m i tt e d D a t a ( A ) T r a n s m i tt e d D a t a ( B ) R ece i ve d D a t a ( A ) R ece i ve d D a t a ( B ) R e qu es t T o S e nd ( A ) R e qu es t T o S e nd ( B ) C l ea r T o S e nd ( A ) C l ea r T o S e nd ( B ) DC E R ea d y ( A ) DC E R ea d y ( B ) D T E R [...]

Software Upgrades 92 A PPENDIX D S OFT WARE U PGRADES Procedures for performing a Console ZMODEM Flash Load to upgrade the operating software of the router: 1) Save the current configuration of the router (Main menu: option 6). 2) Execute the Console (ZMODEM) command from the Load FLASH Set-Up menu. 3) Confirmation is required. Enter “yes” to p[...]

Servicing Information 93 the bridge/router does not start in ZMODEM receive mode, refer to Appendix D: Servicing Information for recovery procedure. The ZMODEM Load Flash operation may be aborted by aborting the ZMODEM transfer and then entering 5 control-X characters “^X” from the console keyboard. After the control-X characters are sent, the [...]

94 Procedures for performing a TFTP Flash Load to upgrade the operating software of the router: 1) Execute the Network (TFTP) command from the Load FLASH Set-Up menu. 2) Enter “none” to connect locally or enter the remote site ID number or alias to connect to a remote site. 3) Start the TFTP application to be used for transfers to the router. T[...]

Servicing Information 95 the bridge/router does not start in ZMODEM receive mode, refer to Appendix D: Servicing Information. The TFTP Load Flash operation may be aborted by re- connecting to the console of the router and choosing the Abort Load option from the Load FLASH Set-Up menu. This will cause the router to reset and return to normal operati[...]

96 Router A PC used for TFTP transfers Link 1 Link 2 Router B Router C[...]