Passive Optical Networks

Table A1.3

G.984.2—Optical interface parameters of 2488 Mbit/s downstream direction

(reproduced from Table 2c/G.984.2, with kind permission from ITU)—Cont’d

Items Unit Single fiber Dual fiber

ONU receiver (optical interface O

rd

)

Maximum reflectance of equipment, measured at receiver

wavelength

dB Less than 20 Less than 20

Bit error ratio — Less than 10

10

Less than 10

10

ODN class A B C A B C

Minimum sensitivity dBm 21 21 28 (Note 4) 21 21 28 (Note 4)

Minimum overload dBm 1 1 8 (Note 4) 1 1 8 (Note 4)

Consecutive identical digit immunity bit More than 72 More than 72

Jitter tolerance — Figure 5 Figure 5

Tolerance to the reflected optical power ...