beautypg.com

EXFO FTB-7000 OTDR Series for FTB-500 User Manual

Page 475

background image

Index

OTDR

461

modification ........................................ 158
non-reflective events average ...... 155, 244
span threshold....................................... 78
splice, threshold .................................... 78

LSA measurement method

definition............................................. 194
vs. four-point....................................... 189
vs. two-point ....................................... 194

M

maintenance

EUI connectors..................................... 260
front panel........................................... 259
general information............................. 259

manual trace modification .......................... 94
marker

disappearing on zoom......................... 187
location calculation ............................. 159
too close to one another ..................... 187

measurement

attenuation (two-point and LSA) ......... 194
event distance ..................................... 188
event loss............................................. 189
event RBS level..................................... 188
ORL...................................................... 197
units .................................................... 116

merged events .......................................... 142
Modify OTDR Setup................................... 126
module

detection ............................................... 17
insertion ................................................ 13
removal ................................................. 13
status..................................................... 22

mounting EUI connector adapter ................ 25
multiwavelength trace file

bidirectional analysis ........................... 230
displaying ............................................ 147

N

naming

reference trace ....................................... 98
trace automatically ................................ 50

native trace format.................................... 199
noise area, searching ................................. 174
non-reflective event, averaged loss.... 155, 244
number

in events table ..................................... 132
of the event ......................................... 132

O

offline vs online ........................................... 96
online user guide....................................... 279
online vs offline ........................................... 96
opening

a single-wavelength trace file .............. 230
multiwavelength trace file ................... 230
reference trace file ............................... 183

opening trace file ...................................... 179
operating light source ............................... 223
optical return loss. see ORL
optical switch

setting parameters................................. 88
test results table ............................ 90, 136

ORL threshold.............................................. 78
ORL, module required for calculations....... 197
OTDR

basic theory ............................................. 7
configuration ....................................... 125
definition ................................................. 1
file compatibility between versions...... 204
internal components................................ 8
setup.................................................... 125
using as laser source ............................ 223

OTDR software

error messages..................................... 276
launch level.......................................... 263