Table of Contents
724-746-5500 | blackbox.com
Page 7
Table of Contents
1.
SPECIFICATIONS .......................................................................... 9
1.1
Technical Specifications ........................................................ 9
1.2
Summary of models and descriptions: ................................ 17
2.
INTRODUCTION .......................................................................... 19
2.1
Inspecting the Package and the Product ............................. 19
2.2
Product Description ............................................................. 20
2.2.1
LBH21-Series Product Description ................................. 20
2.3
Frame Buffering and Latency .............................................. 24
2.4
Features and Benefits ......................................................... 27
2.5
Applications for LBH210-Series Converter Switches .......... 29
3.
INSTALLATION ............................................................................ 32
3.1
Locating the Converter Switch Unit ..................................... 32
3.2
LE1505-RACK for Rack mounting applications ................... 33
3.3
LH1505P-RACK for Rack Mounting .................................... 34
3.4
DIN-Rail mounting option .................................................... 35
3.5
Power Requirements for LBH21-Series Switches ............... 36
3.6
Powering the LBH21-Series with DC power input ............... 37
3.7
LBH21-Series, DC-powered Installation .............................. 38
3.8
Connecting Ethernet Media ................................................. 39
3.8.1
Connecting Twisted Pair ................................................. 40
3.8.2
Installing LC-type SFP module ....................................... 40
3.8.3
Connecting Single-Mode Fiber Optic .............................. 41
3.8.4
Power Budget Calculations, Fiber Media ....................... 41
3.8.5
Connections to NICs which support Auto-Negotiation .... 43
4.
OPERATION ................................................................................. 44
4.1
Triple-Speed Functionality, and Switching .......................... 44
4.2
Auto-cross (MDI-X), Auto-negotiation and Speed-sensing.. 45
4.3
Dual LEDs, Top-front and in End with ports ........................ 46
