Table of Contents
724-746-5500 | blackbox.com
Page 7
Table of Contents
1.
SPECIFICATIONS .......................................................................... 9
1.1
Technical Specifications ........................................................ 9
1.2
Ordering Information ............................................................ 14
2.
INTRODUCTION .......................................................................... 19
2.1
Inspecting the Package and Product ................................... 19
2.2
Product description .............................................................. 20
2.3
Frame Buffering and Latency .............................................. 23
2.4
Features and Benefits ......................................................... 26
3.
INSTALLATION ............................................................................ 29
3.1
Locating the Edge Switch Unit ............................................. 29
3.2
LE1505-RACK for Rack Mounting of LPH240A .................. 32
3.3
LH1505P-RACK for Rack Mounting .................................... 33
3.4
DIN-Rail mounting option .................................................... 34
3.5
Power Requirement for LPH240A (48V) Edge Switch ........ 35
3.6
Powering the LPH240A with –48VDC power input .............. 36
3.7
LPH240A Series, DC-powered, -48VDC Installation ........... 37
3.8
Connecting Ethernet Media ................................................. 38
3.8.1
Connecting Twisted Pair ............................................ 39
3.8.2
Connecting Fiber Optic ST-type, “twist-lock” ............. 40
3.8.3
Connecting Fiber Optic SC-type, "Snap-In" ............... 41
3.8.4
Connecting Single-Mode Fiber Optic ......................... 41
3.8.5
Power Budget Calculations, Fiber Media .................. 42
3.8.6
Connections to NICs .................................................. 43
4.
OPERATION ................................................................................ 44
4.1
Dual-Speed Functionality, and Switching ............................ 44
4.2
Auto-cross (MDIX), Auto-negotiation and Speed-sensing ... 46
4.3
Dual LEDs, Front-panel and side-panel .............................. 47
4.4
Hardware operated Alarm Contact ...................................... 48
Содержание LPH240A-H
Страница 2: ......
Страница 18: ...Chapter 1 Specifications 724 746 5500 blackbox com Page 18 LPH240A H 48 shown LPH240A H shown ...
Страница 30: ...Chapter 3 Installation 724 746 5500 blackbox com Page 30 Fig 3 1a LPH240A x 48VDC 48V model ...
Страница 31: ...Chapter 3 Installation 724 746 5500 blackbox com Page 31 Fig 3 1b LPH240A x AC model ...
Страница 56: ...LPH240A rev 1 ...