K
Magnum SPM-FDST
Magnum SPM-FDST
FULL DUPLEX

Magnum 8000X Mixed-Media Fiber Hubs

Installation and User Guide (05/ 02)

 

 

 

no software configuring and is transparent to system and application software, including network management software.

2.5.1 Magnum SPM-FDST

The significant feature of the SPM-FDST is that the fiber bonus port operates in full-duplex mode, sending packets on one fiber filament while simultaneously and independently receiving packets on the other. There is no “collision domain” with full- duplex, and while this violates the specs

of traditional Ethernet, it is accepted in most situations.

R

L

X

I

N

 

K

 

 

Therefore, the SPM-FDST extends the distance limits of Fast

 

 

Ethernet. In particular, with multi-mode fiber, it permits Fast

Ethernet cable distances of up to 2km, much more than the 412m half-duplex distance limit otherwise obtainable.

These SPMs can also be configured to operate as a half-duplex switch port.

As shown in the figure, the jumper located on the SPM

board by default is factory set

to full-duplex mode (position 2-3).

FULL/HALF JUMPER

 

 

 

By setting the jumper in position 1-

 

 

 

 

2, it will operate as shared (half

HALF FULL

 

 

 

 

 

 

 

duplex). To operate properly in

1

 

 

 

DUPLEX MODE

 

 

 

 

 

 

 

either half- or full-duplex mode, the

 

 

 

 

device on the other end of the fiber

HALF

FULL

FULL

FULL DUPLEX

 

 

 

 

DUPLEX

segment must also be a

(Default)

1

 

 

 

 

 

 

corresponding device. Since full-

HALF

FULL

 

HALF DUPLEX

 

 

 

duplex Fast Ethernet (802.3x) is a

 

1

 

 

 

 

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N

 

 

 

 

recent 1997 standard, it is recommended that the device on the other end of the segment be another full-duplex fiber SPM or equal.

As is typical for bridges and switches, the internal packet buffer space of the SPM-FDST temporarily stores unfiltered packets. It is desirable to have a large packet buffer for temporary storage, particularly when operating at different speeds (such as 10 and 100) or with different traffic types (shared and full-duplex). The SPM-FDST packet

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GarrettCom 8000X manual Magnum SPM-FDST

8000X specifications

The GarrettCom 8000X series represents a significant advancement in industrial networking technology, designed specifically for demanding environments that require robust and reliable communication solutions. Known for its versatility and resilience, the 8000X series caters to various industries, including transportation, utilities, and automation, making it a go-to choice for mission-critical applications.

One of the main features of the 8000X is its modular design, allowing users to customize the switch according to their specific networking needs. This feature provides the flexibility to add and remove modules seamlessly, ensuring that the network can adapt as requirements change over time. The modularity also contributes to easier maintenance and upgrades, reducing downtime and enhancing operational efficiency.

The 8000X series is built to operate in harsh environments, with an operating temperature range of -40°C to 85°C, making it suitable for outdoor and industrial applications. Its rugged chassis is designed to withstand vibration and shock, ensuring reliability even in the most challenging conditions.

Equipped with both Ethernet and fiber optic ports, the 8000X series supports a variety of network topologies and facilitates extensive connectivity options. It usually offers multiple gigabit Ethernet ports, allowing for high-speed data transmission. This feature is crucial for applications that demand real-time data processing, such as video surveillance and process control systems.

In terms of security, the GarrettCom 8000X series incorporates advanced features such as VLAN support, access control lists (ACLs), and network monitoring tools. These security measures are essential for protecting sensitive data and maintaining network integrity against potential threats.

The device also supports various network protocols, including IPv4, IPv6, and various industrial protocols such as Modbus. This compatibility ensures that the 8000X can seamlessly integrate into existing infrastructures and communicate effectively with other devices and systems.

Furthermore, the GarrettCom 8000X series is equipped with built-in redundancy features, such as dual power supplies and support for Rapid Spanning Tree Protocol (RSTP), which enhance network reliability and minimize the risk of downtime.

Overall, the GarrettCom 8000X series stands out with its robust construction, modularity, and advanced technology, making it an ideal solution for organizations seeking reliable networking equipment capable of performing under extreme conditions. Its features make it a vital asset for industries focused on maintaining high-performance communication standards.