Code of Federal Regulations Title 7. Agriculture § 7.1755.397—Specification for Line Concentrator Detailed Equipment Requirements

(Information To Be Supplied by Owner)

Telephone Company (Owner)

Name:  

Location:  

Number of LC's Required:  ____

Line Concentrator Locations:

1. General

1.1 Notwithstanding the bidder's equipment lists, the equipment and materials furnished by the bidder must meet the requirements of paragraphs (a) through (p) of this section, and this appendix A.

1.2 Paragraphs (a) through (p) of this section cover the minimum general requirements for line concentrator equipment.

1.3 Paragraph (q) of this section covers the requirements for installation, inspection and testing when such service is included as part of the contract.

1.4 This appendix A covers the technical data for application engineering and detailed equipment requirements insofar as they can be established by the owner. This appendix A shall be filled in by the owner.

1.5 Appendix B of this section covers detailed information on the line concentrator equipment, information on system reliability and traffic capacity as proposed by the bidder. Appendix B of this section is to be filled in by the bidder and must be presented with the bid.

Office Name

(By Location)

LC Designation

2. Number of Subscriber Lines

3. Loop Resistance

3.1 Number of non-pay station lines having a loop resistance, including the telephone set as follows:

3.1.1 For physical trunks between the remote and the office units, the loop resistance is to include the resistance of the trunk.

3.1.2 Number of pay station lines having a loop resistance, excluding the telephone set, greater than:

When physical trunks are used, these resistances include that of the facility between the CO and the remote.

3.1.3 Range extension equipment, if required, is to be provided:

____ By Bidder

____ By Owner

(Quantity and Type)

4. Traffic Data

4.1 Average combined originating and terminating hundred call seconds (CCS) per line in the busy hour:

___ CCS/Line. (Assume originating & terminating equal.)

4.2 Percent Intra–Calling ____

4.3 Total Busy Hour Calls ____

5. TYPE or RINGING

5.2 Minimum ringing generator capacity to be supplied shall be sufficient to serve ____ lines (each frequency).

6. Central Office Equipment Interface

6.1 COE will be:

6.1.1 COE Manufacturer

Type

Year

Generic

6.1.2 ____ See digital central office specification for the switchboard at __________ .

6.2 Interface will be:

6.2.1 ____ Line Circuit(s)

6.2.2 ____ Direct Digital Interface

6.2.3 ____ Other (Describe)

6.3 Mounting rack for line concentrator furnished by:

____ Bidder

____ Owner

(Specify width and height of rack available) (Width) (Height)

6.4 Equipment to be installed in existing building:

____ Yes (Attach detailed plan)

____ No

7. Transmission Facilities

7.1 Transmission facilities between the central office and remote terminals shall be:

7.1.1 Type:

____VF Carrier Derived Circuits

____Digital Span Line (DS1)

____Other

(Attach a layout of the transmission facilities between the central office and the remote terminals describing transmission and signaling parameters, routing and resistance where applicable.)

7.1.2 Utilizes physical plant

____Cable Pairs (Existing/New)

____Other

Note:  Unless otherwise stated, physical plant will be supplied by the owner.

7.1.3 Terminal equipment for transmission facility to be supplied by:

____Owner

____Bidder

7.1.3.1 Carrier e/w voice terminations ____ Yes ____ No

Manufacturer and type

Central office voice terminations Equipped ____, Wired Only ____

7.1.3.2 Digital span line (DS1) supplied by

____Owner

____Bidder

Manufacturer and Type

7.1.3.3 Number of repeaters (per span line) ____

7.1.3.4 Diverse (alternate) span line routing required

____Yes (Describe in Item 11) ____No

7.1.3.5 Span line terminations only ____Yes ____No

7.1.3.6 Span line power required (CO and Remote Terminals) ____Yes ____No

7.1.3.7 Physical facility between CO and remote Loop Resistance ____ohms, Length ____meters

8. Power Equipment Requirements

8.1 Central Office Terminal

8.1.1 Owner-furnished −48 volt dc power ____Yes ____No

8.1.2 Other (Describe)

8.1.3 Standby power is available ____Yes ____No

8.2 Remote Terminal

8.2.1 Owner-furnished −48 vdc power ____Yes ____No

8.2.2 Bidder-furnished power supply ____Yes ____No

8.2.3 AC power available at site:

____110 vac, 60 Hz, single-phase

____Other (Describe in Item 11)

8.2.4 A battery reserve of ____ busy hours shall be provided for this line concentrator terminal when it reaches ____ lines at the traffic rates specified.

8.2.5 Batteries supplied shall be:

____Lead Calcium

____Stabilized Electrolyte

____Sealed Lead Acid

____Other (Describe in item 11)

8.2.6 Standby power is available ____Yes ____No

9. Remote Terminal

9.1 Mounting

9.1.1 ____Outside Housing (To be furnished by bidder)

9.1.2 ____Concrete Slab to be furnished by owner (Bidder to supply construction details after award.)

9.1.3 ____Manhole, environmentally controlled (Describe in Item 11)

9.1.4 ____Pedestal Mounting

9.1.5 ____Pole Mounting (Owner-furnished installed pole)

9.1.6 ____Prefab Building (Owner-furnished site)

9.2 Equipment is to be installed in an existing building.

____Yes ____No

(Attach detailed plan.)

9.3 Other (Describe)

10. Alternates

11. Explanatory Notes