Perle Systems IOLINK-520 11/X.21 Null-Modem Cable Configuration, 15 V.11/X.21 Null-Modem Cable

Page 42

Link Interfaces Reference

V.11/X.21 Null-Modem Cable Configuration

Figure 3 – 15 V.11/X.21 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 and a set of modems is not available. Note that this cable specifies DB15 connectors on each end to allow direct connection to the link interface connector on each unit. The link speed must be defined for each of the two units.

When using this cable to connect two units back-to-back, a jumper must be installed on pinheaders W8 and W9 on one of the V.11/X.27 interface modules. This allows that particular module to generate the required timing signals.

IOLINK-PRO & 520 Reference Manual — 3.13

Image 42

Contents Reference Manual IOLINK-PRO & 520 Routers IP Routing and the IOLINK-PRO & 520 RoutersARP-Address Resolution Protocol Proxy ARPComplete IP Connection IOLINK-PRO & 520 Reference Manua Time to live IP Header DetailsProtocol Header ChecksumUnreachable Icmp MessagesOptions RedirectPing Time and Mask serverUpdate Mechanism RIP-Routing Information ProtocolRoute Tables Network Layer Addressing vs. MAC Addressing IPX Routing and The IOLINK-PRO & 520 RoutersIPX Addressing IPX Address FormatOther IPX Header Information IPX HeaderService Advertisement Protocol Establishing an IPX ConnectionSAP Broadcasts SAP Requests Server TypesRouting Information Protocol RIP/X OperationBridging and the IOLINK-PRO & 520 Routers RIP/X RequestsRIP/X Metrics Initial Bridging Process Station Address LearningAging Timer Address PurgingFilled Address Table Aging ExceptionIolink Router Feature Definitions TelnetLink Compression Introduction Point-to-Point WAN TopologiesBandwidth On Demand MultipointTime of Day Connect Application Disaster Recovery Backup Link Operating Software UpgradesIsdn Single Active Link & Dual Active Link Iolink PRO & 520 Isdn Connection Management Wide Area Network Topologies SupportedCall Establishment Methods Isdn Connection Management Auto-Call Time-of-Day ConnectionsAddress Connect Manual CallConnection Process CombinationSuspension Process Idle TimerProtocol Awareness Interesting TrafficSession Keepalive Messages Termination ProcessSuspension of TCP/IP Sessions IP SpecificsIP Address Connect RIP-Routing Information ProtocolSuspension of IPX Sessions IPX SpecificsRIP/IPX and SAP/IPX IPX Serialization FramesPinout Information Module IdentificationLink Clocking Information ATL CSU/DSU Link Module Information Link Interfaces ReferenceConsole Pinouts CSU/DSU Module T1/E1 Module24 & RS232C Link Pinouts RS232 Link Pinouts11 & X.21 Link Pinouts DB15 Female DTE Direction Contact Circuits From NumberRS442 & RS530 Link Pinouts DB25 Female DTE Direction Contact Circuit From Number NameLink Pinouts DB25Number Name RS232 Null-Modem Cable Configuration 11 RS232 Null-Modem CableNull-Modem Cable Configuration 12 V.35 Null-Modem CableRS530 Null-Modem Cable Configuration 13 RS530 Null-Modem CableRS530 To RS449 Conversion Cable 14 RS530 to RS449 Conversion Cable11/X.21 Null-Modem Cable Configuration 15 V.11/X.21 Null-Modem CableWAN Link Control-Signal Operation Appendix a Event Logs Event logsEvent Logs IOLINK-PRO & 520 Reference Manual A.3 Event Logs IOLINK-PRO & 520 Reference Manual A.5 Event Logs IOLINK-PRO & 520 Reference Manual A.7 Event Logs Alarm Logs Event Logs IOLINK-PRO & 520 Reference Manual A.11 Event Logs IOLINK-PRO & 520 Reference Manual A.13 Event Logs IOLINK-PRO & 520 Reference Manual A.15 Event Logs IOLINK-PRO & 520 Reference Manual A.17 Event Logs IOLINK-PRO & 520 Reference Manual A.19 PPP Security Logs MAC Address Filtering SecurityProgrammable Filtering Security-Filter if DestinationSecurity-Filter if Source Security-Forward if Destination Security-Forward if Source Programmable Filtering Pattern Filter Operators Bridge Pattern FilteringProtocol Discrimination Filter all IP Packets Protocol Type FieldInternet Protocol IP IP, and no moreFilter all IP without TCP traffic Transport Control Protocol / Internet Protocol TCP/IPFilter only TCP/IP Filter all except TCP/IPEthernet Broadcasting Bandwidth ConservationFilter all DEC Ethernet MulticastingGeneral Restrictions Internet AddressesEthernet Station Addresses Mask Combinations Mask would be 6-010203040506&12-0800&23-06 ExampleIP Router Pattern Filtering IPX Router Pattern FilteringPage Appendix C Frame Formats Octet Locations on an IP Routed TCP/IP Frame IOLINK-PRO & 520 Reference Manual C.3