FEDFOAT1521S-02
Electronic Components
This version: Jan. 2002
OAT1521S-OLT-B, OAT1521S-ONU-B
ATM-PON Optical Module
APPLICATION
• Optical transceiver for ATM-PON application (ITU-T Rec. G.983)
FEATURES
• 1-fiber bi-directional transmission by incorporated WDM
• Burst signal transmission
• +3.3V single power supply
SPECIFICATION
[Transmitter]
OAT1521S-OLT-B
Class B
OAT1521S-ONU-B
Class B
ITU-T Rec. G983
Bit rate (Mb/s)
155.520
Transmission distance (km)
Transmission mode
≤ 20
Tx: continuous, Rx: burst
Tx: burst, Rx: continuous
Tx: 1480 to 1580
Rx: 1260 to 1360
Tx: 1260 to 1360
Rx: 1480 to 1580
Optical wavelength (nm)
Maximum reflectance of equipment, measured at
transmitter wavelength (dB)
≤ —6
Mean launched power range (dBm)
Minimum extinction ratio (dB)
—4 to+2
—4 to+2
≥ 10
≥ 25
Tolerance to the transmitter incident light power (dB)
Launched optical power w/o input
to the transmitter (dBm)
≥—15
≤ —43
Maximum spectral width (nm)
≤ 1 (@ —20 dB)
≥ 30
≤ 5.8 (@ rms)
Side mode suppression ratio (dB)
Maximum reflectance of equipment, measured at
receiver wavelength (dB)
≤ —20
Received optical power [BER = 10-10] (dBm)
Consecutive identical digit immunity
Tolerance to the reflected optical power (dB)
Power consumption (W)
—30 to—8
—30 to—8
≥ 72
≤ 10
1.2
1.0
Laser diode
1.55 µm DFB-LD
1.31 µm FP-LD
Photo diode
PIN-PD
Operating temperature (°C)
Dimension (mm)
0 to 70
—40to 85
40 ×60 × 8.5