The purpose of a nullmodem serial cable is to permit two RS232 devices to communicate with each other without modems or other communication devices between them. Serial interfaces cables and converters scheme pinouts diagrams pinouts. Cisco Asynchronous Line RJ4. Pin SCSI cable Cisco Console 2. Use this cable to configure a Cisco router thru the Console port at the router. Cisco Console 9 cable Use this cable to configure a Cisco router thru the Console port at the router. Tech Stuff RS232 Cables, Wiring and Pinouts. Brief tutorial and pinouts for RS232, RS422485, T1E1 and V. If you want to know more about RS 232 signals then. Answers others found helpful. RS232 DTE and DCE connectors Pinouts for XPressDR and XPressDRIAP RJ45 serial port to go to a DB9 Connector Description of. A data circuitterminating equipment DCE is a device that sits between the data terminal equipment DTE and a data transmission circuit. It is also called data. Cisco DB 6. 0 to DB 6. DCE DTE Serial Cable Between Cisco Routers X. FormatCisco EIATIA 2. RS 2. 32 DCE cable used in the Cisco 7. Cisco 4. 00. 0 series, Cisco 3. Cisco 2. 50. 0 series, Cisco 1. Cisco access servers, and Access. Pro PC cards. Cisco EIATIA 2. RS 2. 32 DTE cable used in the Cisco 7. Cisco 4. 00. 0 series, Cisco 3. Cisco 2. 50. 0 series, Cisco 1. Cisco access servers, and Access. Pro PC cards. Cisco EIATIA 4. RS 4. 49 DCE DB6. DB3. 7 cable Cisco Part CAB 4. FCCisco EIATIA 4. RS 4. 49 DTE DB 6. DB 3. 7 cable Cisco Part CAB 4. MTCisco EIATIA 5. DTE cable DB6. 0 to DB2. Cisco Part CAB 5. MTCisco PIX5. 50. Custom cable to directly connect Cisco switchfw to HP Serial Console Server. Tipps/wp-content/uploads/2010/04/DCEDTE11.jpg' alt='Dce And Dte Serial Cable' title='Dce And Dte Serial Cable' />Cisco RJ4. DB2. Cisco V. 3. 5 DCE cable This document explains the V. Cisco Part CAB V3. FCCisco V. 3. 5 DTE cable This document explains the V. Cisco Part CAB V3. Serial Network Modules Cisco. Table Of Contents. Connecting Cisco Serial Network Modules to the Network. About Serial Connections. About DTE and DCE Devices. About Serial Cables Used with Cisco 2. Series, Cisco 3. 60. Series, Cisco 3. 70. Series, and Cisco MWR 1. DC Routers. About Data Rates and Distance Limitations. Asynchronous and Synchronous Serial Module Data Rates. Connecting Asynchronous Network Modules to Asynchronous Devices. Octal Cables. 12 in 1 Smart Serial Cables. Asynchronous Network Module Interface Numbering. Cisco 3. 60. 0 Series and Cisco MWR 1. DC Router 1. 6 and 3. Port Interface Numbering. Cisco 2. 60. 0 Series and Cisco MWR 1. DC Router Serial Interface Numbering. Port Interface Numbering. Port 1. 6 and 3. Port. Port Serial Network Module. Connecting the 4 Port Serial Module to a Network. Port Serial Network Module LEDs. Port Asynchronous Serial Network Modules. Asynchronous Network Module LEDs. Port AsynchronousSynchronous Serial Network Modules. AsynchronousSynchronous Serial Module LEDs. Related Documents. Obtaining Documentation, Obtaining Support, and Security Guidelines Connecting Cisco Serial Network Modules to the Network. Revised May 1, 2. OL 1. 28. 09 0. This guide describes how to connect Cisco serial network modules to your network. It contains the following sections About Serial Connections Connecting Asynchronous Network Modules to Asynchronous Devices Asynchronous Network Module Interface Numbering 4 Port Serial Network Module 1. Port Asynchronous Serial Network Modules 4, 8, and 1. Port AsynchronousSynchronous Serial Network Modules Related Documents Obtaining Documentation, Obtaining Support, and Security Guidelines About Serial Connections Before you connect a device to a serial port, you need to know the following Type of devicedata terminal equipment DTE or data communications equipment DCEyou are connecting to Type of connector, male or female, needed to connect to the device Signaling standard required by the device About DTE and DCE Devices A device that communicates over a synchronous serial interface is either a DTE or a DCE device. A DCE device provides a clock signal between the device and the router. A DTE device does not provide a clock signal. DTE devices usually connect to DCE devices. The documentation that accompanied the device should tell you whether it is DTE or DCE. Some devices have a jumper to select DTE or DCE mode. If you cannot find this information in your documentation, see Table 1 to help you determine the proper device type. Table 1 Identifying the Device Type. Device Type. Typical Connector. Typical Devices. DTE Male. Terminal PC DCE Female. Modem CSUDSU Multiplexer Note Serial ports configured as synchronous DTE require external clocking from a channel service unitdata service unit CSUDSU WAN interface card or other DCE device. About Serial Cables Used with Cisco 2. Series, Cisco 3. 60. Series, Cisco 3. 70. Series, and Cisco MWR 1. DC Routers Cisco Systems offers ten types of serial cables also called serial adapter cables or transition cables as listed in Table 2. Table 2 Serial Cables and Cisco Smart Serial Cables. Standard Serial Cables. Cisco Smart Serial Cables. EIATIA 2. 32 serial cable EIATIA 2. Smart Serial cable EIATIA 4. EIATIA 4. 49 Smart Serial cable V. V. 3. 5 Smart Serial cable X. X. 2. 1 Smart Serial cable EIATIA 5. EIATIA 5. 30 Smart Serial cable EIATIA 5. A Smart Serial cable The documentation for the device you plan to connect to the serial port should indicate which interface is used. You can then order a serial transition cable of the correct type. Tip A cable providing surge protection CAB SS SURGE is also available from Cisco Systems for use with the NM 1. AS network module. See the 1. 2 in 1 Smart Serial Cables section for instructions on connecting the surge protector cable. A standard serial cable uses a universal 6. How Do I Reinstall Google Earth. WAN interface card end. The Smart Serial cable uses a 1. Smart Serial connector designed by Cisco. The network end of each cable provides the physical connectors most commonly used for the interface. For example, the network end of the EIATIA 2. DB 2. 5 connector, the most widely used EIATIA 2. All serial interface types except EIATIA 5. EIATIA 5. 30. A are available in DTE or DCE format DTE with a plug connector at the network end, and DCE with a receptacle at the network end. V. 3. 5 is available in either mode, with either gender at the network end. EIATIA 5. 30 and EIATIA 5. A are available in DTE only. Serial cables are not provided with the network module. For ordering information, see the Obtaining Documentation, Obtaining Support, and Security Guidelines section. Although manufacturing your own serial cables is not recommended because of the small size of the pins on the DB 6. Cisco Modular Access Router Cable Specifications. For further information, see the Obtaining Documentation, Obtaining Support, and Security Guidelines section. About Data Rates and Distance Limitations All serial signals are subject to distance limits, beyond which the signal degrades significantly or is completely lost. Generally, the slower the data rate, the greater the distance. Table 3 lists recommended maximum speeds and distances for each serial interface type. If you understand and compensate for potential electrical problems, you may get good results at speeds and distances greater than those listed. For instance, the recommended maximum rate for V. Mbps, but 4 Mbps is commonly used. Table 3 Serial Interface Recommended Maximum Speeds and Distances. EIATIA 2. 32 Distance. EIATIA 4. 49, 5. A, V. X. Distance. Data Rate, bps. Feet. Meters. Feet. Meters. 2. 40. 0 2. T1 5. 0 1. 5 Balanced drivers allow EIATIA 4. EIATIA 2. 32 signals. The recommended distance limits for EIATIA 4. Table 3 are also valid for V. X. 2. 1, and EIATIA 5. Typically, EIATIA 4. EIATIA 5. 30 support 2 Mbps rates, and V. Mbps rates. Asynchronous and Synchronous Serial Module Data Rates The following data rate limitations apply to the slow speed serial interfaces found on asynchronous and synchronous serial modules The maximum data rate on the slow speed asynchronous interface is 1. The traffic throughput rate allowed is the full 1. The maximum data rate for the slow speed synchronous interface is 1. Connecting Asynchronous Network Modules to Asynchronous Devices An asynchronous network module provides two or four 6. Each receptacle connects to asynchronous devices by means of an octal cable that has a 6. EIATIA 2. 32 serial ports. Depending on the type of cable, the network end consists of either RJ 4. DB 2. 5 connectors. RJ 4. 5 to DB 2. Ports are numbered from right to left and from bottom to top, as labeled on the module rear panel. See the Asynchronous Network Module Interface Numbering section. Octal Cables Octal cables are not provided with the network module. For ordering information, see the Obtaining Documentation, Obtaining Support, and Security Guidelines section. Use an octal cable, and adapters if necessary, to connect each of the modules 6. See Figure 1. Figure 1 Connecting an Asynchronous Network Module to an Asynchronous Device 1. Smart Serial Cables The Cisco NM 1. AS network module uses sixteen 1. Smart Serial cables. The cables connect the network module to a patch panel or one or more asynchronous modems, terminals, or other devices. See Figure 2. Figure 2 Connecting the NM 1.