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CAB−449MT and CAB−449FC EIA/TIA−449 Serial
Cable Specifications
Document ID: 46801
Introduction
Prerequisites
Requirements
Components Used
Conventions
EIA/TIA−449 Speed and Distance Limitations
Serial Cable CAB−449MT
EIA/TIA−449 Serial Cable Assembly
EIA/TIA−449 DTE Cable Pinouts
Serial Cable CAB−449FC
EIA/TIA−449 DCE Cable Pinouts (DB−60 to DB−37)
Related Information
Introduction
This document provides the technical and cable specifications for the EIA/TIA−449 serial cables.
Prerequisites
Requirements
There are no specific requirements for this document.
Components Used
This document is not restricted to specific software and hardware versions.
The information in this document was created from the devices in a specific lab environment. All of the
devices used in this document started with a cleared (default) configuration. If your network is live, make sure
that you understand the potential impact of any command.
Conventions
For more information on document conventions, see the Cisco Technical Tips Conventions.
EIA/TIA−449 Speed and Distance Limitations
The use of balanced drivers allows EIA/TIA−449 signals to travel greater distances than the EIA/TIA−232
standard. The table below lists the standard relationship between baud rate and maximum distance for
EIA/TIA−449 signals. These limits are also valid for V.35 and X.21.
Data Rate (Baud)
2400
Distance (Feet)
Distance (Meters)
4,100
1,250
Summary of Contents for Cisco EIA/TIA-449 Serial Cable CAB-449FC
- Page 1 CAB−449MT and CAB−449FC EIA/TIA−449 Serial Cable Specifications Document ID: 46801 Introduction Prerequisites Requirements Components Used Conventions EIA/TIA−449 Speed and Distance Limitations Serial Cable CAB−449MT EIA/TIA−449 Serial Cable Assembly EIA/TIA−449 DTE Cable Pinouts Serial Cable CAB−449FC EIA/TIA−449 DCE Cable Pinouts (DB−60 to DB−37) Related Information Introduction This document provides the technical and cable specifications for the EIA/TIA−449 serial cables.
- Page 2 4800 2,050 9600 1,025 19200 38400 56000 Caution: The EIA/TIA−449 and V.35 interfaces support data rates up to 2.048 Mbps. Exceeding this maximum could result in loss of data and is not recommended. Serial Cable CAB−449MT This section presents the cable assembly and pinouts for the CAB−449MT serial cable. Note: The cable itself identifies the Cisco router as a data terminal equipment (DTE) or data communications equipment (DCE) device to other devices in the network;...
- Page 3 J1−49 MODE_1 J1−48 Shorting group J1−51 J1−52 Shorting group J1−46 MODE_DCE Shield_GND Single J1−11 TxD/RxD+ J1−12 Twisted pair no. 6 J1−24 TxD/RxD− TxC/RxC+ J1−23 Twisted pair no. 9 J1−28 TxC/RxC− RxD/TxD+ J1−27 Twisted pair no. 11 J1−9 RxD/TxD− RTS/CTS+ J1−10 Twisted pair no.
- Page 4 Any pin not referenced is not connected. Serial Cable CAB−449FC This section presents the cable assembly and pinouts for the CAB−449FC serial cable. The cable gender for this product (part number 72−0796−01) is Male DB−60 to Female DB−37, mode − DCE.
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Page 5: Related Information
Circuit_GND J1−16 Twisted pair no. 8 Circuit_GND Related Information Technical Support − Cisco Systems All contents are Copyright © 2006−2007 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement. Updated: Jan 30, 2006 −−−> J2−9 −−−> J2−27 CS−...