3.3.6 Specific Technical Questions
For dark fiber solutions, as applicable, please answer the following questions:
Q 22.214.171.124 Please provide the detailed construction calendar delivery times for bringing up a
fiber link for the HISD ONI.
Q 126.96.36.199 HISD has identified a spare pair of fibers on each route for the dark fiber solution.
Please describe any options to provide this fiber out of a shared pool (e.g., on
backbone links), and the procedures and timing involved in connecting the fibers
to HISD sites.
For dark fiber solutions, or for fiber plants used with wavelength services, please answer the following questions:
Q 188.8.131.52 What types of fiber are utilized in your solution? (Please identify from the following list,
and add others as needed.)
Alcatel SMF 6900, ESMF 6901, Teralight Metro 6911, Teralight Ultra 6912
Corning SMF-28?, SMF-28e?, MetroCor?, LEAF?
OFS/Lucent AllWave?, TrueWave RS, TrueWave? REACH, UltraWave? Terrestrial
For each of the fiber types (as identified above) that you are proposing, please answer the following questions:
Q 184.108.40.206 Please provide the detailed measured optical characteristics of the proposed fiber links in the O and C wavelength bands (e.g., fiber length, fiber loss, chromatic dispersion, PMD, reflectance, return loss, splice locations, splice loss, splice reflectance, etc). Q 220.127.116.11 What are your standard technologies used on the fibers for optical amplification, and for regeneration? What spacings are assumed for each?
Q 18.104.22.168 If the fiber plant is used with a DWDM system (assuming 10Gb/s on each channel and a BER of 10-12), please provide the maximum internode spacing, amplifier spacing, regenerator spacing and span budget (dB) range, together with specific assumptions on the number of channels.
For wavelength solutions, as applicable, please answer the following questions:
Q 22.214.171.124 What are the standard delivery times for bring up a wavelength for the ONI (if proposed)?
Q 126.96.36.199 What type of DWDM equipment is used to support your wavelength services? What is the architecture?
Q 188.8.131.52 Please provide the system capacity (i.e., total number of wavelengths) for the proposed DWDM system, and the maximum bit-rate per channel.
Q 184.108.40.206 What are the requirements on the ONI wavelengths connecting to the carrier WAN RFP – Questions Page 1 Education Partners Solution, Inc.
Q 220.127.116.11 What are the interface constraints (e.g., transparency) and options for connecting to the carrier wavelength solution?
Q 18.104.22.168 If ONI uses wavelengths, but without SONET framing (e.g., Ethernet), would this have any impact on the proposed wavelength solution?
Q 22.214.171.124 Please indicate whether the optical network element (ONE) interface cards are bit-rate specific or do they operate over a range of bit-rates.
Q 126.96.36.199 Please indicate the multiplexing/combining capability of the client interface cards (e.g., 4 x 2.5Gb/s to 10Gb/s) for efficient fill of optical wavelengths.
Q 188.8.131.52 Please provide the maximum and minimum span budget (dB) for the optical system -12assuming OC-192 (or equivalent rate) on each channel and a BER of 1x10.
Q 184.108.40.206 Please indicate whether the optical system complies with the 50 GHz ITU-T grid specified in ITU-T Rec. G.959.1. What are the specific frequencies used in the DWDM system? Q 220.127.116.11 Please indicate whether the proposed optical solution supports tunable lasers. Q 18.104.22.168 Please indicate whether Automatic Gain Control (AGC) for Optical Amplifiers (OAs) can be provisioned in the proposed optical solution. In case AGC is not supported by the system, indicate the alternative OA provisioning for gain control when an additional wavelength is added to the system.
Q 22.214.171.124 Please indicate the physical characteristics of the proposed DWDM equipment. For example, the potential partner may specify the shelf size, bay size, bay weight, etc. Q 126.96.36.199 Please indicate the power consumption requirements for all proposed optical equipment that may be required in campus or hub sites.
Please answer the following questions only if ring protection or mesh retention is assumed for
Q 188.8.131.52 Please specify the type of protection mechanism (e.g., 1+1 dedicated protection or 1:n shared protection) supported in optical ring or mesh wavelength networks. Q 184.108.40.206 Please provide the benefits and tradeoffs of the proposed ring protection or mesh restoration mechanism.
Q 220.127.116.11 If an optical ring solution is proposed, please provide the maximum — internode
spacing, amplifier spacing, regenerator spacing, circumference and number of nodes supportable.
WAN RFP – Questions Page 2 Education Partners Solution, Inc.