Magnum 8000X Mixed-Media Fiber Hubs

Installation and User Guide (05/ 02)

4.5Power Budget Calculations for 8000X FPM’s and Fiber Media

Receiver Sensitivity and Transmitter Power are the parameters necessary to compute the power budget. To calculate the power budget of different fiber media installations using Magnum products, the following equations should be used:

OPB (Optical Power Budget) = PT(min) - PR(min)

where PT = Transmitter Output Power, and PR = Receiver Sensitivity Worst case OPB = OPB - 1dB(for LED aging) - 1dB(for insertion loss) Worst case distance = {Worst case OPB, in dB} / [Cable Loss, in dB/Km]

where the “Cable Loss” for 62.5/125 and 50/125∝m (M.m) is 2.8 dB/km, and the “Cable Loss” for 100/140 (Multi-mode) is 3.3 dB/km,

and the “Cable Loss” for 9/125 (Single-mode) is 0.5 dB/km

The following data has been collected from component manufacturer’s (HP’s and Siemens’) web sites and catalogs to provide guidance to network designers and installers.

Fiber

Speed,

 

Std.

 

Cable

X’mitr

R’cvr

Worst

Worst*

 

typical

typical*

Port

Std.

Mode

km

Wave

Size

Output

Sens.

 

distance

 

OPB,

distance

Module

 

fdx

-

m

 

PR ,dB

OPB,

Km, fdx

 

dB

Km, fdx

 

 

 

 

 

 

 

(hdx)

length

 

PT , dB

 

dB

 

 

 

 

 

 

 

 

nm

 

 

 

 

 

 

 

 

FPM10-

10 Mb

Multi-

2

 

62.5/125

-15.0

-31

14

5

 

17

6

850

100/140

-9.5

-31

19.5

5.9

 

23.5

7

MST, MSC

FL

mode

(2)

 

 

50/125

-19.5

-31

9.5

3.4

 

13.5

4.8

 

 

 

 

 

 

 

 

 

 

 

 

 

FPM10-

10 Mb

Single-

10

1300

9/125

-30

-39

7

14

 

13

26

SST, SSC

FL

mode

(5)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FPM-

100Mb

Multi-

2

1300

62.5/125

-20

-31

9.0

2.5

 

14

5

MST, MSC

FX

mode

(0.4)

 

50/125

-23.5

-31

5.5

2.0

 

12

4

FPM-SSC

100Mb

Single-

18+

1300

9/125

-15

-31

14

28

 

17.5

35

 

FX

mode

(0.4)

 

 

 

 

 

 

 

 

 

FPM-MTRJ

100Mb

Multi-

2

1300

62.5/125

-20

-31

9.0

3.0

 

15.8

5.5

 

FX

mode

(0.4)

 

50/125

-23.5

-31

5.5

2.0

 

12.2

4.0

FPM-MV45

100Mb

Multi-

2

1300

62.5/125

-14

-31

15

5

 

16

5.7

(0.4)

 

 

FX

mode

 

 

 

 

 

 

 

 

 

FPM-SX

10/100

Multi-

0.3

850

62.5/125

-12

-15

1

0.3

 

1.5

0.5

MST, MSC

Mb SX

mode

(0.3)

 

 

 

 

 

 

 

 

 

 

SPM-FDST SPM-FDSC

100Mb

FX

Multi-

2

mode

(n.a.)

1300 62.5/125 -20 -31 9.0 50/125 -23.5 -31 5.5

2.5

2.0

14

12

5

4

*Note: The use of either multi-mode or single-mode fiber to operate at 100Mbps speed over long distances (i.e., over approx. 400 meters) can be achieved only if the following factors are both applied:

The 100Mb fiber segment must operate in full-duplex (FDX) mode, i.e. an SPM (or equal external unit such as 300ES-FDX) must be used, and

The worst-case OPB of the fiber link must be greater than the fiber cable’s

passive Attenuation.

(Attenuation = Cable loss + LED aging loss + Insertion loss + safety factor)

www . GarrettCom . com

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Image 47
GarrettCom manual Power Budget Calculations for 8000X FPM’s and Fiber Media, ’cvr

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.