Chapter 3 Installing and Connecting the Router

Connectors and Cabling for the 8-Port Asynchronous/ Synchronous RS-232 GRWIC

Table 3-12

Pinouts for Male and Female DB-25 Cables (continued)

 

 

 

 

Pin

 

Signal

Direction

Description

 

 

 

 

 

16

 

Unassigned

 

 

 

 

 

17

 

RXC

Output

Receive Clock

 

 

 

 

 

18

 

LTST

Input

Loopback Test (also Local Loopback)

 

 

 

 

 

19

 

Unassigned

 

 

 

 

 

20

 

DTR

Input

Data Terminal Ready

 

 

 

 

 

21

 

Unassigned

 

 

 

 

 

22

 

Unassigned

 

 

 

 

 

23

 

Unassigned

 

 

 

 

 

24

 

TXCE

Input

Transmit Clock Enable

 

 

 

 

 

25

 

Unassigned

 

 

 

 

 

RS-232 DB-9 Cable Pinouts

Table 3-13shows the pinouts for the CAB-9AS-M (High Density 4-port EIA-232 to DB-9, DTE) cable:

Table 3-13

Pinouts for CAB-9AS-M (Male DB-9)

 

 

 

 

Pin

 

Signal

Direction

Description

 

 

 

 

 

1

 

 

 

 

 

 

 

2

 

RD

Input

Receive Data. Arriving data from DCE.

 

 

 

 

 

3

 

TD

Output

Transmit Data. Sending data from DTE.

 

 

 

 

 

4

 

 

 

 

 

 

 

5

 

SGND

Ground

 

 

 

 

 

6

 

 

 

 

 

 

 

7

 

RTS

Output

Request to Send. Raised by DCE when it

 

 

 

 

wishes to send. Expects CTS from DTE.

 

 

 

 

 

8

 

CTS

Input

Clear to Send. Raised by DCE in response

 

 

 

 

to RTS from DTE.

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

Cisco 2010 Connected Grid Router Hardware Installation Guide

 

 

 

 

 

 

OL-31454-01

 

 

3-35

 

 

 

 

 

Page 75
Image 75
Cisco Systems OL-31454-01 manual RS-232 DB-9 Cable Pinouts, Rxc, Ltst, Txce, Sgnd

OL-31454-01 specifications

Cisco Systems OL-31454-01 refers to a specific configuration guide for Cisco networking equipment, which serves an essential role in helping IT professionals understand how to deploy and manage their networking hardware efficiently. This document is particularly relevant for those working with Cisco routers and switches, highlighting various features, technologies, and best practices in network management.

A core feature of Cisco Systems OL-31454-01 is its focus on enhancing network performance and reliability. The systems typically include advanced Quality of Service (QoS) mechanisms, ensuring that critical applications receive the necessary bandwidth and performance even during peak usage times. This is crucial for enterprises that rely on uninterrupted access to applications and services.

The guide also discusses technologies such as VLANs (Virtual Local Area Networks), which allow network administrators to segment networks for improved performance and security. By isolating traffic within different VLANs, organizations can mitigate congestion and enhance overall network efficiency.

Another critical aspect of OL-31454-01 is its in-depth look at security features. Cisco networking solutions typically come equipped with integrated security protocols, such as IPsec for Virtual Private Networks (VPNs) and advanced threat detection mechanisms. This layered approach to security helps protect sensitive data from unauthorized access and cyber threats.

Furthermore, the guide emphasizes the importance of automation and programmability in modern networks. Utilizing Cisco's software-defined networking (SDN) capabilities, network engineers can automate various tasks, reducing the potential for human error and freeing up valuable resources. The integration of tools like Cisco DNA Center provides a unified network management platform, enhancing visibility and control across the entire network.

In addition to these features, Cisco Systems OL-31454-01 outlines various compatibility options with existing technologies and infrastructure. The guide ensures that IT teams can seamlessly integrate new hardware into their current networks without significant overhauls, facilitating a more efficient transition.

Overall, OL-31454-01 serves as a comprehensive resource for deploying and managing Cisco systems, offering valuable insights into essential features, technologies, and best practices that can significantly enhance an organization's networking capabilities.