Chapter 1 Overview

Receptacles, Cables, and Pinouts

Figure 1-5shows the RJ-45 cable connectors. Cisco does not supply Category 5 UTP RJ-45 cables; they are available from a commercial supplier. Table 1-3lists the pinouts and signals for the PA-2FE-TX RJ-45 connectors.

Figure 1-5 RJ-45 Port and Connector

12345678

1

1RJ-45 connector and port

84529

Table 1-3 IRJ-45 Port Pinout Information

Pin

1

2

3

6

Description

TxD+1

TxD–

RxD+2

RxD–

1.TxD = Transmit data

2.RxD = Receive data

Note Referring to the RJ-45 pinout in Table 1-3, proper common-mode line terminations should be used for the unused Category 5, UTP cable pairs 4/5 and 7/8. Common-mode line termination reduces the contributions to electromagnetic interference (EMI) and susceptibility to common-mode sources. Wire pairs 4/5 and 7/8 are passively terminated in the RJ-45 100BASE-TX port circuitry in the PA-2FE-TX.

Depending on your RJ-45 interface cabling requirements, use the pinouts in Figure 1-6and Figure 1-7.

Figure 1-6

Ethernet port

1TxD+

2TxD–

3RxD+

6RxD–

Straight-Through Cable Pinout—PA-2FE-TX RJ-45 Connection to a Hub or Repeater

Hub

1 RxD+

2 RxD–

6 TxD–

38582

3 TxD+

 

PA-2FE-TX and PA-2FE-FX Two-Port Fast Ethernet Port Adapter Installation and Configuration

 

OL-3474-07

1-5

 

 

 

Page 16 Page 18
Page 17
Image 17
Cisco Systems PA-2FE-FX, PA-2FE-TX manual Pin Description, RJ-45 Port and Connector
Page 16 Page 18

PA-2FE-FX, PA-2FE-TX specifications

Cisco Systems PA-2FE-TX and PA-2FE-FX are high-performance Ethernet interface modules designed to enhance the capabilities of Cisco 2600 and 3600 series routers. They provide businesses with flexible and reliable networking solutions that meet the increasing demand for bandwidth and connectivity.

One of the main features of the PA-2FE-TX module is its ability to support two 10/100 Mbps Fast Ethernet interfaces. This allows organizations to connect multiple devices while improving network performance. The PA-2FE-FX module, on the other hand, is designed for optical fiber connections. It features two Fast Ethernet interfaces that utilize an SC connector for easier cable management in fiber optic environments. This capability facilitates long-distance data transmission, making it suitable for backbone connections or inter-building links.

Both modules incorporate advanced technologies to ensure efficient data handling. They support Cisco's Auto-Negotiation feature, enabling devices to automatically select the optimal speed and duplex settings, thus simplifying deployment and reducing configuration errors. This functionality is vital in environments with varied device capabilities, allowing seamless communication across the network.

The PA-2FE-TX and PA-2FE-FX modules utilize Quality of Service (QoS) capabilities to prioritize traffic, ensuring that critical applications receive the necessary bandwidth. This is particularly beneficial for VoIP services, video conferencing, and other latency-sensitive applications. Additionally, the modules offer support for VLANs, allowing organizations to segment their networks effectively and enhance security by isolating sensitive data traffic.

Another important characteristic of these modules is their hot-swappable nature, enabling users to replace them without powering down the router, thus minimizing downtime. This feature is critical for businesses that require high availability and reliability from their networking equipment.

In summary, the Cisco Systems PA-2FE-TX and PA-2FE-FX interface modules stand out for their versatility, enabling businesses to implement customized networking solutions tailored to specific needs. With support for both copper and fiber connections, advanced QoS features, and seamless integration into existing Cisco routers, these modules reinforce Cisco’s commitment to providing innovative, robust network solutions that cater to the demands of modern enterprise environments.
Top Page Image Contents