Txp_Mr_2.5G And Txpp_Mr_2.5G Card Specifications - Cisco ONS 15454 DWDM Installation And Operation Manual

Appendix B Hardware Specifications
B.5.3 TXP_MR_2.5G and TXPP_MR_2.5G Card Specifications
The TXP_MR_2.5G and TXPP_MR_2.5G cards have the following specifications:
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Caution
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Note An optical device on the card keeps the laser wavelength locked as closely as possible to the ITU nominal
value. The allowed drift is +/- 25 pm.
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•
April 2006
Line (trunk side)
– Bit rate:
2.488 Gbps for OC-48/STM-16
2.66 Gbps with ITU-T G.709 Digital Wrapper/FEC
Code: Scrambled NRZ
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Fiber: 1550-nm single-mode
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Maximum chromatic dispersion allowance: 6000 ps/nm
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Loopback modes: Terminal and facility
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You must use a 20-dB fiber attenuator (15 to 25 dB) when working with the TXP_MR_2.5G
and TXPP_MR_2.5G cards in a loopback on the trunk port. Do not use direct fiber loopbacks
with the TXP_MR_2.5G and TXPP_MR_2.5G cards. Using direct fiber loopbacks causes
irreparable damage to the TXP_MR_2.5G and TXPP_MR_2.5G cards.
Connectors: LC
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Compliance: Telcordia GR-253-CORE, ITU-T G.707, ITU-T G.957
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Transmitter (trunk side)
Maximum transmitter output power: +1 dBm
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Minimum transmitter output power: –4.5 dBm
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Transmitter: Direct modulated laser
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Wavelength stability (drift): +/- 25 picometers (pm)
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Currently available wavelengths of TXP_MR_2.5G and TXPP_MR_2.5G:
ITU grid blue band: 1530.334 to 1544.526 nm
ITU grid red band: 1546.119 to 1560.606 nm
Receiver (trunk side)
– Receiver input power (no FEC, unamplified, BER 1 * 10 exp – 12): –9 to –30 dBm
– Receiver input power (FEC, unamplified, BER 1 * 10 exp – 6): –9 to –31 dBm
– Receiver input power (no FEC, amplified, BER 1 * 10 exp – 12): –9 to –23 dBm
Receiver input power (FEC, amplified, BER 1 * 10 exp – 6): –9 to –25 dBm
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Receiver: APD
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Link loss budget: 24 dB minimum, with no dispersion or 22 dB optical path loss at
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BER = 1 * 10 exp – 12 including dispersion
Receiver input wavelength range: 1290 to 1605 nm
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B.5.3 TXP_MR_2.5G and TXPP_MR_2.5G Card Specifications
Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7
B-35