V23848-N15-C656

Technical Data

Preliminary Product Information

11

2004-06-22

Figure 3

3)

The transceiver is specified to meet the SONET/SDH Jitter performance as outlined in ITU-T G.958 and

Telcordia GR-253. Jitter Generation is defined as the amount of jitter that is generated by the transceiver. The

Jitter Generation specifications are referenced to the optical OC-48 signals. If no or minimum jitter is applied

to the electrical inputs of the transmitter, then Jitter Generation can simply be defined as the amount of jitter

on the Tx optical output. The SONET specifications for Jitter Generation are 0.01 UI rms, maximum and

0.1 UI pk-pk, maximum. Both are measured with a 12 kHz - 20 MHz filter in line. A UI is a Unit Interval, which

is equivalent to one bit slot.

4)

Values are 20%- 80%, unfiltered and measured at nominal data rate.

5)

Receiver characteristics are measured with a worst case reference laser.

6)

Measured with 8.2 dB extinction ratio and a 2

OC-48, and ITU-T G.957 I-16.

7)

Minimum average optical power at which the BER is less than 1x10

8)

See Figure 3.

9)

SONET OC-48 and ITU-T G.957 I-16 standards.

Received Optical

Power Level

[dBm]

LOS Assert

(Minimum)

Hysteresis

(Minimum)

LOS / Hysteresis

(Typical)

LOS Deassert

(Maximum)

LOS Level

0

1

File: 1522