Juniper Networks T1600 Manual Do Utilizador
Table 25: Optical Interface Support for 10-Gigabit Ethernet PICs with XENPAK-OTNs (continued)
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Transmitter type: Electro-absorption Modulated Laser (EML)
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Modulation format: Non-retum-to-zero (NRZ)
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Channel-plan wavelength range: 1551.72 through 1542.94 nm
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Channel-plan frequency range: 193.2 through 194.3 THz
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Channel spacing: 100 GHz
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Channel tunability: 2 channels
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Output power (on): 0 to + 3 dBm
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Output power (off):
≤−40 dBm
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Output power stability: ±0.6 dB
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Wavelength accuracy: ±100 pm
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Tuning time: Warm tune – 10 seconds; Cold start – 40 seconds
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Extinction ratio:
≥ 9 dB
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Side-mode suppression ratio:
≥ 30 dB
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Jitter generation compliance: GR-253/G.8251
Optical transmitter
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Receiver type: Avalanche photodiode (APD)
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Jitter tolerance compliance: GR-53/G.8251/802.3ae (LAN PHY)
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Rx DTV setting: Auto
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Rx wavelength range: 1527 to 1567 nm
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Overload: −5 dBm
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Damage input power: +5 dBm
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Optical return loss:
≥ 27 dB
Optical receiver
Optical Applications—Power-Limited Receiver:
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Sensitivity: −28 dBm (>33dB/0.1 nm OSNR, 0 ps/nm CD, 10−15 post-FEC BER)
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Chromatic dispersion (CD) power penalty: 3 dB (typical penalty at +1600 ps/nm and
−700 ps/nm CD)
−700 ps/nm CD)
Optical Applications—Noise-Limited Receiver:
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Required OSNR: 16 dB/0.1 nm (−8 to −20 dBm Rx input power, 0 ps/nm CD, 10−15
post-FEC BER)
post-FEC BER)
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CD OSNR penalty: 4 dB (typical penalty at +1500 ps/nm and −700 ps/nm CD with Rx
input power from−8 to −20 dBm). For more detailed information, see
Table 26 on page 60.
input power from−8 to −20 dBm). For more detailed information, see
Table 26 on page 60.
Optical performance
Table 26: XENPAK-OTN Optical Signal-to-Noise Ratio (OSNR) Performance
CD Tolerance
(ps/nm)
(ps/nm)
Input-Power
Range
(dBm)
Range
(dBm)
Post-FEC
BER
BER
Pre-FEC
BER
BER
FEC Type
OSNR (dB/0.5
nm)
nm)
OSNR (dB/0.1
nm)
nm)
0
–5 to –28
10–15
10–5
GFEC
26
33
–700 to +1600
–5 to –26
10–15
10–5
GFEC
26
33
0
–8 to –20
10–15
10–5
GFEC
9
16
60
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10-Gigabit Ethernet PIC with XENPAK
T1600 Internet Routing Node PIC Guide