Unbundled Dark Fiber
Product Guide
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Unbundled Dark Fiber
Product Overview
Unbundled Dark Fiber (UDF) is unlit fiber optic cable strands between two points in the Sprint
network. UDF is an existing, single-continuous transmission path that terminates on a Sprint Fiber
Patch Panel (FPP). UDF can be between two Sprint wire centers, between a Sprint wire center and
the end-user premises or between a Sprint wire center and an appropriate Outside Plant (OSP)
structure such as a digital loop carrier or a hub in a cabinet. UDF can also be provided between two
OSPs or between an OSP and the end-user premises.
The availability of UDF allows a Competitive Local Exchange Carrier (CLEC) to construct its
facilities using existing spare Sprint optical fiber between locations. With the proper electronics,
UDF offers unlimited bandwidth availability. Use of a high-speed backbone allows aggregation of
lower speed traffic, which saves on plant investment. However, Sprint does not make any
representations as to the transmission capability of these facilities.
UDF consists of the following elements:
•
•
•
Interoffice Facility: This element provides a route between two existing Sprint wire centers.
Loop: This element provides a route between a Sprint wire center and end-user premises.
Subloop: This element provides a portion of an existing UDF Loop. A subloop terminating in
an OSP is designated as feeder fiber. Subloop from a FPP in a remote OSP location to another
remote OSP location or end-user premises is designated as distribution fiber.
Unbundled Dark Fiber can also be a combination of these elements. The CLEC must submit a
Bona Fide Request (BFR) for an element not listed.
Sprint offers UDF via optical cross-connect or fiber jumper from the Sprint FPP to a collocated
CLEC FPP. Sprint will provide UDF where it is both available and accessible for the dedicated
transport and unbundled loop network elements. Additional splicing of fiber strands is not an
element of this product offering, but is available on an individual case basis (ICB) from Sprint.
Sprint provides UDF to a CLEC in increments of a single strand.
The CLEC will be required to submit a Dark Fiber Application with the application fee to their local
account manager. The application process will verify the availability of the requested route, provide
price quote information and reserve the requested dark fiber route for 10 business days. For
additional information to initiate the process refer to the Requirements section of this guide.
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Unbundled Dark Fiber
Product Details
Sprint offers Unbundled Dark Fiber in the following configurations:
Sprint Central Office (CO) to Sprint Central Office
Route Type
Description
1) Central office to central office
(interoffice transport)
The CLEC must have a collocation presence at
each end of the fiber route. Fiber jumpers join the
Sprint fiber, terminated on a patch panel, to the
CLEC.
Note: Transport routing can be provided through intermediate central offices. Collocation is not
required in the intermediate offices. Terminating central offices need not be in adjacent wire centers.
Sprint Central Office to End-user Premises
Route Type
Description
2) Central office to an end-user premises located The CLEC must have a collocation presence
FPP (loop)
in the Sprint CO. Fiber jumpers join the
Sprint fiber, terminated on a patch panel, to
the CLEC.
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Unbundled Dark Fiber
Product Details (Continued)
Sprint Central Office to Sprint Remote Site
Route Type
Description
3) Central office to remote site (feeder subloop) The CLEC must have a collocation presence in
the Sprint CO and the remote site. A fiber
jumper connects the Sprint FPP to the CLEC
FPP. Additional fiber cable and splicing will be
provided on an ICB at the remote site.
Sprint Remote Site to Sprint Remote Site
Route Type
Description
4) Remote to remote (distribution subloop)
The CLEC must have a collocation presence in
both remote sites. A fiber cable may terminate
from the Sprint FPP to CLEC outside plant
(OSP) facility.
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Unbundled Dark Fiber
Product Details (Continued)
Sprint Remote Site to End-user premises
Route Type
Description
5) Remote site to an end-user premises located The CLEC must have a collocation presence at
FPP (distribution subloop)
the end-user premises. A fiber jumper provided
through the collocation agreement connects the
Sprint FPP to the CLEC FPP. At the remote site
(OSP) a fiber cable provided under ICB will
connect the Sprint FPP to the CLEC facilities.
Note: Sprint also provides Route Types 2, 3, 4 and 5 (above) with Interoffice Transport.
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Unbundled Dark Fiber
Ordering Process
UDF must be ordered via a Local Service Request (LSR) or an Access Service Request (ASR),
depending on the type of route requested. Refer to Table 1 below to determine which type of order
to use. Submission of a UDF firm order indicates that the CLEC agrees to pay the quoted monthly
recurring and non-recurring charges.
Sprint will provide the UDF route to the CLEC within 20 business days after a firm order is
received from CLEC. Sprint will begin invoicing of the monthly recurring and non-recurring charges
upon completion of the order.
Table 1 – Order Types for Unbundled Dark Fiber
Route Type
Definition
Order
Type
ASR
1) CO to CO (interoffice Dark fiber transport is between two Sprint FPPs in two
transport)
separate Sprint offices.
2) CO to an end-user
premises located FPP
(loop)
3) CO to remote (feeder Dark fiber feeder is between two Sprint FPPs - one located
subloop)
Dark fiber loop is between a Sprint FPP located in a Sprint
CO and a Sprint FPP located at an end-user premises.
LSR
LSR
LSR
in a Sprint CO and one at a remote location served by that
CO.
Dark fiber distribution can be between Sprint FPPs at two
remote locations, such as digital loop carriers.
Dark fiber distribution can be between a Sprint FPP located LSR
outside a Sprint CO (e.g., remote site) and a FPP located at
end-user premises.
4) Remote to remote
(distribution subloop)
5) Remote to an end-
user premises located
FPP (distribution
subloop)
Interoffice Transport Orders
Route Type 1 is considered Interoffice Transport. Route Type 1 should be ordered via an ASR and
submitted to the Sprint National Access Service Center (NASC).
Additionally, orders may be placed in Access Request Management System (ARMS) via Sprint’s
Host on Demand. The entries required for Interoffice Transport orders placed into ARMS are
provided on the sample screens below. Each field should be populated with end-user specific
information.
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Unbundled Dark Fiber
Interoffice Transport Orders (Continued)
Administrative Section
Additional entries as noted in Table 2 are required in the Administrative section of the ASR.
Table 2 – Administrative Entries
Field
Entry
Access Customer Terminal Location
(ACTL)
The CLEC Common Language Location Identifier
(CLLI) code
Unbundled Network Element (UNE)
Request Type (REQTYP)
All other fields
Y
SD
Complete with standard entries
Figure 6 highlights the entries described above.
Figure 6 – Administrative Screen
ASR ADMINISTRATIVE DATA - 1
ADMINISTRATIVE SECTION
NON ACCESS Y
ORD NO ___________ MORE? _
ICSC MG07 PON DARKFIBEREXAMPLE VER __ NOR __ OF __ ASR NO __________________
D/T SENT 10 - 30 - 01 - 0301PM QA _ DDD 11 - 30 - 01 PROJECT ________________
RTR F CC 1811 CNO ____________ UNE Y WST _ QNAI __ QSA __ CBD __
REQTYP SD ASC-EC ____ ACT N SUP _ AFO ____ EXP _ AENG _ ALBR _ SPA TQ __
CCNA ZZZ CUST CLEC
AGAUTH _ DATED __ - __ - __ LUP ___
CKR _____________________________________________________ PIU 000 PLU 100
ECCKT _____________________________________________________ UNIT _ QTY 0000004
FBA ____ FNI _____________ CFNI ____________________ PBT _ QTY _______
BAN 999 - XXX - XXXX ASG ______ ACTL HLSMMOXARS0 APOT ___________ AI _ AFG _
BIC _ BIC TEL ___ - ___ - ____ BIC ID ____________ TSC ________
FDT ______ BSA _ SPEC _______ PSL ___________ PSLI _
RORD _________________ RPON ________________ CCVN ______ TSP _________ - __
PPTD __ - __ - __ PFPTD __ - __ - __ WSTN ___ - ___ - ____
LTP ____
LA _ LADATED __ - __ - __ LANM _______________
REMARKS: APPLICATION NO. 1234HLSMMO-001 FOR UNBUNDLED DARK FIBER.
Transport Section
Additional entries as noted in Table 3 required in the Transport section of the ASR.
Table 3 – Transport Entries
Field
Entry
Network Channel (NC)
Network Channel Interface (NCI)
Secondary NCI (SECNCI)
Secondary Location (SECLOC)
All other fields
LX--
01QBF.LLX
01QBF.LLX
E
Complete with standard entries
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Unbundled Dark Fiber
Transport Section (Continued)
Figure 7 highlights the entries described above.
Figure 7 – Transport Screen
TRANSPORT: NC LX-- NCI 01QBF.LLX____ TLV _____ T _____ R
SECNCI 01QBF.LLX___ SECTLV _____ T _____ R NSIM _ SR ___ S25 _______ ER _
SSS _ ATN ____________ TRF _ MST _ HVP _ OTC ____ ISDN SEQ __ OF __
CKLT ___________ NSL __ CFAU _ CFA _______________________________________
DIR _ CPT _____ - _____ SCFA __________________________________________
SDIR _ SECLOC E___________ MUXLOC ___________ HBAN ___ - ___ - ____
PRI ADM ___________ SEC ADM ___________
CLK _ NVC ___ PSPEED _______ LMP _ N/U _ ZLG _ BSC ETET _
CCEA ____________________________________________________________
SCCEA ____________________________________________________________
GETO _ GBTN ___ - ___ - ____ GCON _________________________
GTEL ___ - ___ - ____ - ____
CTX TEL ___ - ___ - ____ CTX LSTD NM _________________________
W1 ____________________________________ W2 _______________________________
REMARKS ___________________________________________________________
Loop Orders
Route Types 2, 3, 4 and 5 are considered Loop activity. They should be ordered via an LSR and
submitted to the National Exchange Access Center (NEAC). Orders for theses Route Types may be
placed through Sprint’s Integrated Request Entry System (IRES).
Examples of the special entry instructions for IRES described below are provided on the following
pages. Entries in all other tabs within IRES are completed with standard entries.
Special entry instructions apply for the CLLI code information in IRES as reflected in Table 4.
Table 4 – IRES Special Entry Requirements
Route Types Tab
Field
Entry
2, 3, 4, 5
Service
ACTL
Location Z, the CLLI associated with
the point of interface (POI) CLLI at the
CO or OSP
3, 4
2, 5
Service
Additional Point of
Termination (APOT)
Address fields
Location A, the POI CLLI at the OSP
End
User
End-user (EU) address
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Unbundled Dark Fiber
Loop Orders (Continued)
Table 5 provides the appropriate location information by Route Type.
Table 5 – Route Type Information
Route Type
Location Z
Location A
2) Central Office to an end-user
premises located FPP (loop)
POI CLLI at the CO (CLLI Z) End-user address
3) Central Office to remote (feeder POI CLLI at the CO (CLLI Z) POI CLLI at the OSP
subloop) (CLLI A)
4) Remote to remote (distribution POI CLLI at the OSP (CLLI Z) POI CLLI at the OSP
subloop) (CLLI A)
5) Remote to an end-user premises POI CLLI at the OSP (CLLI Z) End-user address
located FPP (distribution subloop)
Service Tab
In IRES, entries are required in the ACTL and APOT fields on the Service tab when two CLLI
codes are required (Route Types 3 and 4). When one CLLI code and one address are required
(Route Types 2 and 5), the only field requiring an entry is the ACTL field.
In addition, entries are required in the NC, NCI and SECNCI fields on the Service tab. Table 6
provides the codes for loop Route Types 2, 3, 4 and 5.
Table 6 - Codes
Route Type
2) Central Office to an end-user premises located FPP
(loop)
NC
NCI
SECNCI
LX-- 01QBF.LLX 01FCF.X
3) Central Office to remote (feeder subloop)
4) Remote to remote (distribution subloop)
5) Remote to an end-user premises located FPP
(distribution subloop)
LX-- 01QBF.LLX 01QEF.X
LX-- 01QEF.X
LX-- 01QEF.X
01QEF.X
01FCF.X
Figure 8 illustrates the required entries described above. The remaining fields highlighted on the
Service tab should be completed with standard entries.
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Unbundled Dark Fiber
Service Tab (Continued)
Figure 8 – Service Tab
Loop Tab
The CLEC should enter the appropriate cable identification and channel pair in the Loop tab as
shown in Figure 9.
Figure 9 – Loop Tab
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Unbundled Dark Fiber
CLEC Tab
The CLEC should enter the application number as shown on the Dark Fiber Application (DFA)
confirmation on the CLEC Tab in the Remarks to Sprint section as shown in Figure 10.
Figure 10 – CLEC Tab
Invoicing Elements
UDF is provided using loop and interoffice (transport) invoicing elements. Pricing is included in the
interconnection agreement or its addenda. No volume or term discount plans are provided.
Invoicing Elements may include:
•
•
•
•
Unbundled Dark Fiber Loop
Unbundled Dark Fiber Interoffice Transport
Unbundled Dark Fiber Local Feeder (office to remote subloop)
Unbundled Dark Fiber Local Distribution (remote to remote or remote to end-user subloop)
Other invoice components include non-recurring charges for initial installation, monthly and non-
recurring charges for fiber patch cords, fiber patch panels and end-to-end testing after initial
installation. Special construction charges may apply for central office interconnection cabling and
fiber patch cords.
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Unbundled Dark Fiber
Requirements
CLECs must have UDF language and rates identified in their Master Interconnection and Resale
Agreement prior to submitting a Sprint Dark Fiber Application (DFA) and the appropriate
application fee.
Sprint will provide access to the CLEC for accessible and available UDF facilities. The CLEC is
responsible for obtaining and connecting electronic facilities to the UDF. Sprint will not remove,
and CLEC will be permitted to use, any regenerating equipment in existing facilities.
The CLEC must have an established collocation with an FPP at the end points of the UDF
transport facility, at the serving wire center of the UDF loop or at the feeder subloop. No
collocation is required at intermediate wire centers where the fiber route passes through that wire
center.
The CLEC may request UDF prior to collocation build. The CLEC must complete a Sprint DFA in
order to determine availability of the requested route. Once verification of availability is obtained,
the CLEC has 10 business days to submit a firm order for that route. Once the UDF route is
complete, all recurring and non-recurring charges will be applied.
Use restrictions applied for leased dark fiber are consistent with those for loop, transport and EELs.
Sprint will reserve a minimum of four fibers per sheath and up to a maximum of 12 for testing and
maintenance use by Sprint. In addition, Sprint reserves the right to take back fiber to meet Sprint’s
carrier of last resort obligations. Refer to the Master Interconnection Agreement for details.
The CLEC will be required to submit a DFA prior to submitting a firm order for UDF. Refer to
Figure 11 for a sample application. The CLEC initiates the process by submitting an application for
UDF with the appropriate application fee to the local account manager. The purpose of the
application is to verify that the requested UDF route is available and to provide pricing of the route
prior to ordering.
Within 20 business days of receipt of the DFA, Sprint will provide the CLEC with an analysis and
response regarding route availability and cost details. Refer to Figure 12 for a sample analysis and
response.
If UDF is available, the CLEC is required to notify Sprint of acceptance or rejection of the price
quote. Acceptance must be via a firm order, within 10 business days of receipt of the quote. Sprint
will reserve the requested dark fiber for the CLEC during those 10 business days.
If, however, the CLEC does not submit a firm order within 10 business days, the fiber reservation
expires. Additionally, if the CLEC has not accepted the price quote after 10 business days of receipt,
the CLEC must submit another DFA and application fee.
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Unbundled Dark Fiber
Requirements (Continued)
Figure 11 – Sample Dark Fiber Application
DARK FIBER APPLICATION
Customer Provided
Information:
CLEC Name:
Requested # of Fibers:
4
***CLEC Name***
CLLI A: 11 Character CLLI
OR
CLLI Z: 11 Character CLLI
OR
Customer Address 1:
Customer Address 1:
Address 2:
City:
Address 2:
City:
State:
Zip:
State:
Zip:
CLEC Remarks:
Inquiry is for 4 fibers from CLLI A to CLLI
Sprint Provided Information:
MO
State/Territory (See fee below):
FSM Name:
*Application Number:
Date Received:
Requested Fiber Route Available:
Reason (If Unavailable):
Type of Firm Order Required:
(If completed quote results in an order)
Yes
Not Applicable
ASR
Date Returned to CLEC:
* NOTE: Any firm order (ASR or LSR as specified in the completed application) resulting from this application MUST include the
Application Number shown above in the remarks section of the ASR or LSR.
Terms and Conditions:
This Dark Fiber Application will not be processed unless the above information is complete, and it is
$267.32
submitted with a check in the amount shown at the right, for the state and territory indicated above.
Upon providing the pricing and availability for the requested Dark Fiber route, Sprint will reserve the fiber route (if available) for up
to 10 business days pending the receipt of a firm order. Beyond 10 business days, if an ASR/LSR has not been received, a new
application and fee will be required.
The pricing information outlined in this quote is applicable until the expiration or mutually agreed upon amendment of the
interconnection agreement.
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Unbundled Dark Fiber
Requirements (Continued)
Figure 12 provides an example of a Sprint analysis and response prepared for cost details for a
requested dark fiber route.
Figure 12 – Cost Details Example
Cost Details For Dark Fiber Route Requested
Non Recurring Charges
USOC
Quantity
Price
Total
Loop NRCs:
Patch Cord Inst
1
$27.8900
$27.89
Co Interconnection
Research
Special Const. Pigtail
Transport
End-to-end Testing
Other
1
$63.1200
$63.12
Subtotal:
DFLOP
$91.01
Interoffice NRCs:
Patch Cord Inst
Co Interconnection
Research
Special Const. Pigtail
Transport
End-to-end Testing
Other
Subtotal:
DFINO
$0.00
Total NRC:
$91.01
Monthly Recurring Charges
USOC
Quantity
Price
Total
Loop MRCs:
Feeder
2
$189.0000
$378.00
Distribution
Patch Panel
Patch Cord
Subtotal:
2
2
$0.7000
$0.8600
$1.40
$1.72
$381.12
DFLOP
DFINO
Interoffice MRCs:
Interoffice
147,660
$0.0076
$1,122.20
Patch Panel
Patch Cord
Subtotal:
$1,122.20
$1,503.32
Total MRC:
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Unbundled Dark Fiber
Frequently Asked Questions
Number
Question
Answer
1
Does Sprint UDF require collocation? Yes. UDF requires collocation at each
Sprint CO or OSP facility where UDF is
terminated.
2
3
4
Where is UDF available?
UDF route availability is determined
through the Dark Fiber Application process
based on route end points and strand
quantities requested.
UDF is provided only where facilities are
both available and accessible. Any other
requested arrangements must be submitted
via a BFR.
UDF terminates at a Sprint FPP. Additional
fiber cable and necessary splicing for
connecting to the CLEC facilities will be
provided as requested under ICB at the
remote site. For that reason, an ICB request
must be made for connectivity beyond the
physical UDF termination. UDF service is
priced using distance-sensitive rate
elements. These distances are determined
using actual footage. For this reason, the
actual physical length of the route, not
airline mileage, determines UDF prices.
Sprint will provide end-to-end testing for
UDF routes during the firm order
Can UDF be provided where fiber is
not accessible?
What are other considerations for
UDF?
5
5
What testing is performed?
provisioning process. Sprint does not make
any representation as to the transmission
capability of these facilities.
Who should be contacted if additional The local account manager should be
information is needed? contacted for additional information.
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