HP ProCurve 1600M 설치 매뉴얼 - 페이지 23

{카테고리_이름} HP ProCurve 1600M에 대한 설치 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. HP ProCurve 1600M 28 페이지. Redundant power supply
HP ProCurve 1600M에 대해서도 마찬가지입니다: 사양 시트 (12 페이지), 먼저 읽기 (8 페이지), 검토자 매뉴얼 (27 페이지), 보충 설명서 (2 페이지), 보충 설명서 (2 페이지), 설치 매뉴얼 (28 페이지), 설치 매뉴얼 (36 페이지), 빠른 설정 매뉴얼 (2 페이지), 빠른 설정 매뉴얼 (4 페이지), 사용자 설명서 (8 페이지), 매뉴얼 보충 자료 (28 페이지), 먼저 읽기 (16 페이지), 설치 및 제거 (2 페이지), 설치 매뉴얼 (12 페이지), 계획 및 구현 매뉴얼 (40 페이지), 제품 수명이 다한 제품 분해 지침 (2 페이지), 설치 매뉴얼 (46 페이지), 진단 매뉴얼 (2 페이지), 분해 지침 (2 페이지)

Mode Conditioning Patch Cord for Gigabit-LX

Mode Conditioning Patch Cord for

Gigabit-LX

The following information applies to installations in which multimode

fiber-optic cables are connected to a Gigabit LX Transceiver installed in the

Gigabit Stacking Module.

Unlike Gigabit SX, which connects to only multimode fiber-optic cabling,

Gigabit LX can use either single-mode or multimode cable. Multimode cable

has a design characteristic called "Differential Mode Delay", which requires

that the transmission signals be "conditioned" to compensate for the cable

design and thus prevent resulting transmission errors. Since Gigabit SX is

designed to operate only with multimode cable, Gigabit SX transceivers can

provide that transmission conditioning internally.

Gigabit LX transceivers, since they are designed to operate with both single-

mode and multimode cable, do not provide the transmission conditioning

internally. Thus, under certain circumstances, depending on the cable used

and the lengths of the cable runs, an external Mode Conditioning Patch

Cord may need to be installed between the Gigabit LX transmitting device and

the multimode network cable to provide the transmission conditioning.

If you experience a high number of transmission errors on the Gigabit LX

ports, usually CRC or FCS errors, you may need to install one of these patch

cords between the Gigabit LX port in your switch and your multimode fiber-

optic network cabling, and between the Gigabit LX transmission device and

the network cabling at the other end of the multimode fiber-optic cable run.

A patch cord must be installed at both ends.

The patch cord consists of a short length of single-mode fiber cable coupled

to graded-index multimode fiber cable on the transmit side, and only multi-

mode cable on the receive side. The section of single-mode fiber is connected

in such a way that it minimizes the effects of the differential mode delay in the

multimode cable.

N o t e

Most of the time, if you are using good quality graded-index multimode fiber

cable that adheres to the standards listed on page 8, there should not be a need

to use mode conditioning patch cords in your network. This is especially true

if the fiber runs in your network are relatively short.

If you are using single-mode fiber-optic cabling in your network, there is no

need to use mode conditioning patch cords. Connect the single-mode network

cable directly to the Gigabit LX transceiver.