Enterasys Networks C1H124-24, C1H124-48 Four-Wire Crossover Cable RJ45 Pinouts for 10/100BASE-TX

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Connecting to the Network

3. Verify that a link exists by checking that the Link/Activity LED is ON (solid green or blinking green). If the Link/Activity LED is OFF, perform the following steps until it is on:

a.Verify that the cabling being used is Category 5 or better with an impedance between 85 and 111 ohms with a maximum length of 100 meters (328 feet).

b.Verify that the device at the other end of the twisted pair segment is on and properly connected to the segment.

c.Verify that the RJ45 connectors on the twisted pair segment have the proper pinouts and check the cable for continuity. Typically, a crossover cable is used between hub devices. A straight-through cable is used to connect between switches or hub devices and an end user (computer). Refer to Figure 3-8and Figure 3-9for four-wire RJ45 connections. Refer to Figure 3-10and Figure 3-11for eight-wire RJ45 connections.

d.Ensure that the twisted pair connection meets the dB loss and cable specifications outlined in the Cabling Guide. Refer to “Related Documents” in About This Guide for information on obtaining this document.

4.If a link is not established, contact Enterasys Networks. Refer to Section 1.12 for details. Repeat all steps above until all connections have been made.

Figure 3-8 Four-Wire Crossover Cable RJ45 Pinouts for 10/100BASE-TX

À

RX+ 1

RX– 2

Ã

TX+ 3

TX– 6

RJ45 device port

Other device port

Á

1 RX+

2 RX–

3 TX+

6 TX–

Â

36771_21

RJ45-to-RJ45 crossover cable RX+/RX- and TX+/TX- connections.

These connections must share a common color pair.

3-10Hardware Installation

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Contents 9033831-04 Page Page Class a ITE Notice Safety Compliance Wichtige Sicherheitshinweise Germany Enterasys NETWORKS, INC Program License Agreement Page Page Declaration of Conformity Contents Troubleshooting Figures Tables About This Guide WHO should USE this GuideStructure of this Guide HOW to USE this Guide Related DocumentsDocument Conventions This guide uses the following conventionsC1H124-48 IntroductionOverview À Ã C1G124-24HALF-DUPLEX/FULL-DUPLEX AUTO-NEGOTIATION Mini-Gigabit Interface Connectors Mini-GBICsC1H124-48 and C1G124-24 Port Redirect Function Port TrunkingRemote Monitoring Rmon Flow ControlManagement Switching Options802.1p Port Priority Standards CompatibilityUPN Support Getting Help Page Network Requirements 10BASE-T TWISTED-PAIR Network1000BASE-T TWISTED-PAIR Network 100BASE-TX TWISTED-PAIR Network1000BASE-FX SINGLE-MODE and Multimode FIBER-OPTIC Network Hardware Installation Required ToolsInstalling Optional MINI-GBICs Unpacking the DeviceInstallation PreparationMini-GBIC with LC Connector C1H124-48 shown Removing the Mini-GBICInstalling the Device Clearance Required for Tabletop or Shelf InstallationRack Mounting the Device Rackmount InstallationGuidelines for Rackmount Installation Connecting Power Fastening the Device to the RackConnecting to the Network Connecting to the NetworkConnecting UTP Cables Connecting a Twisted Pair Segment to the DeviceFour-Wire Crossover Cable RJ45 Pinouts for 10/100BASE-TX RX+ TX+ Connecting Fiber-Optic Cables to MT-RJ Ports CPU RPS Connecting Fiber-Optic Cables to LC Ports Connecting to the Network 13 Cable Connection to LC Multimode Fiber-Optic Connectors Connecting to an IBM or Compatible Device Connecting to Console Port for Local ManagementWhat Is Needed Connecting to a VT Series Terminal 14 Connecting an IBM PC or CompatibleConnecting to a Modem 15 Connecting a VT Series Terminal16 Connecting to a Modem Adapter Wiring and Signal Assignments Modem Port Adapter Wiring and Signal Diagram RJ45 DB25 Completing the Installation Initial Logon to Device ManagementPage Troubleshooting Using LanviewCPU No link Troubleshooting Checklist OFFConfiguration Guide for instructions to Using the Reset Button Reset ButtonSpecifications C1G124-24 and C1H124-48 Specifications Redundant Power Source Connector Gigabit Ethernet Specifications MGBIC-LC01 / MGBIC-MT01 Specifications 1000BASE-SXMGBIC-LC09 Specifications 1000BASE-LX Console Port Pinout Assignments

C1H124-24, C1H124-48 specifications

Enterasys Networks, a prominent player in the field of networking technology, has developed a range of innovative solutions tailored for modern enterprise demands. Among their offerings are the C1H124-48 and C1H124-24 switches, both designed to facilitate robust connectivity and superior network performance.

The Enterasys C1H124-48 is a 48-port Ethernet switch, designed to meet the needs of dense network environments. It supports a variety of Ethernet standards, making it versatile for different deployment scenarios. This model boasts advanced Layer 2 switching capabilities, ensuring that data packets are efficiently managed and routed within local networks. With support for Power over Ethernet (PoE), this switch can supply power to connected devices, such as IP phones and wireless access points, without the need for separate electrical wiring.

Conversely, the C1H124-24 is a 24-port variant that shares many features with its larger counterpart. It is ideal for smaller office environments or as part of a larger stack in complex installations. Both models support high throughput rates to handle heavy data traffic, ensuring seamless connectivity and minimal latency for end-users.

One of the key strengths of both switches is their integration of advanced security features. They support features such as VLAN tagging and Access Control Lists (ACLs), allowing network administrators to segment traffic and enforce strict security protocols. This is essential for protecting sensitive data and ensuring compliance with industry regulations.

In addition to security, the C1H124 models utilize cutting-edge technologies such as Quality of Service (QoS) to prioritize critical network applications, ensuring that bandwidth-intensive tasks like video conferencing and cloud applications receive the necessary resources. This capability is vital in modern enterprises where operational continuity depends on reliable network performance.

Additionally, Enterasys Networks emphasizes ease of management with both models. They come equipped with intuitive management interfaces and support for network management protocols, allowing for straightforward monitoring and configuration. This reduces the administrative burden on IT staff and enhances operational efficiency.

In summary, the Enterasys Networks C1H124-48 and C1H124-24 switches are well-engineered solutions that cater to a variety of networking needs. With their comprehensive feature set, including PoE support, advanced security, QoS, and user-friendly management, they are positioned to enhance network performance and security in diverse organizational settings. The decision to adopt these switches can lead to significant improvements in connectivity and overall network efficiency.