Tài liệu micro-DLC System ppt

micro-DLC System ADC's PG-Flex micro-DLC provides feeder F1, distribution F2 or drop "pair relief" in areas of the network suffering from copper pair shortages.. It enables Local Exchang

micro-DLC System

ADC's PG-Flex micro-DLC provides feeder

(F1), distribution (F2) or drop "pair relief" in

areas of the network suffering from copper

pair shortages It enables Local Exchange

Carriers (LECs) to quickly and

cost-effective-ly meet held order demands for POTS or

ISDN services in these areas PG-Flex is a far

superior alternative to expensive and time

consuming alternatives of cable

rearrange-ments, laying more cable or installing a large

capacity Digital Loop Carrier (DLC) system

The PG-Flex micro-DLC is a highly versatile

platform supporting both indoor and

out-door pair relief applications Remote

termi-nals (RTs), which are deployed in 24-channel

increments, are available in 24, 48 and

96-channel configurations Outside plant

hard-ened enclosures include 24/48-channel

ver-sions with complete lightning protection for

installation at crossboxes or existing

DLC/SLC cabinets Indoor RTs, available in 24/48/96-channel versions, provide a cost-effective alternative to standard D4 channel banks All PG-Flex remotes are line-powered reducing the need for costly batteries and UPS systems

Features:

• Line powered and environmentally hardened remote terminals

• Requires no local power or battery supplies

• Traditional HDSL transmission architecture

• 24-channel system architecture

• Extended temperature rating

• Supports POTS and ISDN services

• Supports MLT testing (TR-909)

• Indoor and outdoor specific remotes

• TR-57 (VF) switch interface

• Supports crisis/temporary service needs

1/02 • 100040PR

Application

Figure 1 Basic PG-Flex Configuration

CO

Residential or Business Customers Crossbox

PG-Flex RT

Up to 24 Lines PG-Flex COT

HDSL

Figure 2 Feeder Relief at the Crossbox

CO

Business

Strip Mall

HDSL HDSL

PG-Flex COT

PG-Flex RT

PG-Flex RT

Figure 3 Relief to end-customer location

1/02 • 100040PR

Description

General Specifications

COT and RT equipment are designed to operate over an extended temperature range RTs meet the environmental conditions found in the outside plant The following specifications apply to all PG-Flex hardware:

Temperature: -40º to +65º C (-40º to +150º F)

Relative Humidity: 5% to 95% (non-condensing)

Altitude: -200 to 13,000 ft (-60 to 4,000 m)

COT Equipment Specifications

COT Shelves Dimensions (HxWxD): FCS-718: 8.75 x 19.0 x 11.75 in (22.2 x 48.3 x 29.9 cm)

FCS-719: 8.75 x 23.0 x 11.75 in (22.2 x 58.4 x 29.9 cm) Weight: FCS-718: 15.5 lbs (7.0 kg) FCS-719: 20.2 lbs (9.2 kg)

Mounting: EIA hole spacing on universal mounting flanges Finish: zinc plated and aluminum irridited

Terminations: Subscriber Lines: 25-pair Amphenol or wire wrap

HDSL Lines: wire wrap Alarm Relays: wire wrap

CO Battery: screw terminal Metallic Bypass: wire wrap PGTC Interface: 25-pair Amphenol System Power Input Voltage: Fused -42 to -56 VDC

Requirements Input Power: 145 watts (maximum)

Line Output Voltage: ±130 VDC (maximum) Line Output Power: 100 watts (maximum) POTS Channel Interface Analog Impedance: 900 W

(FLC-703 L4) DC Off-Hook Resistance: 960 W

Ringer Equivalence: 0.9 REN at 20 Hz Ring Detection at COT: 65 to 104 Vrms @20 to 60 Hz, superimposed on a DC component of -36 to -56 VDC

ISDN Channel Interface “U” Interface: per ANSI T1.601-1992

RT Equipment Specifications

Ring Output Voltage (At Station): >40 Vrms AC at full load

Generator Output Voltage DC Pedestal: -75 VDC to -40 VDC

Frequency: 20, 25, 30 Hz (±1 Hz) (programmable at system setup and fixed for the entire system) Crest Factor: 1.2 to 1.6

Output Load: 15 REN maximum per system

RT Power Input Voltage: ±130 VDC to ±70 VDC

Supply Input Power: <40 watts

POTS Analog Impedance: 600 W

DC Loop Current: >23 mA into off-hook DC resistance Ringer Output Drive: 5 REN maximum per port

RT DC Supervisory Range: 960 W (Max cable loop resistance, minus 430 W for handset, is 530 W)

RT Idle State Loop Voltage (On-Hook): >40 VDC (Note: ring is negative with respect to Tip)

RT Loop Closure Detection (Off-Hook): RT recognizes resistance between tip and ring £960 W as loop closure

RT On-Hook Detection: The RT recognizes a resistance ³10 kW as an on-hook condition ISDN “U” Interface: per ANSI T1.601-1992

Wire Gauge

26 AWG

PG-Flex Distance Table

24-Channel HDSL

9.0 kft

Subscriber Drop

6.3 kft

RT Equipment Catalog Number Description

FRE-765 FRE-860 FRE-865 FRE-867 FRE-868 FRE-869

Remote Terminals L4A L1 L1 L1B L1 L1B L1 L2 L3 L4 L1 L2

Gel-filled IDC •

AMP Quiet Front •

Protection Included in IDC •

Auxiliary Power AMP Quiet Front •

Dimensions Height (in/cm) 19.25/48.9 23.6/59.9 23.6/59.9 23.6/59.9 23.6/60.2 23.6/60.2 22.7/57.8 22.7/57.6 22.7/57.8 22.7/57.6 22.7/57.7 22.7/57.7

Width (in/cm) 14.25/36.2 8.7/22.1 8.7/22.1 8.7/22.1 17.25/43.7 17.25/43.7 11.3/28.6 6.0/15.2 11.3/28.6 6.0/15.2 23.0/58.4 23.0/58.4 Depth (in/cm) 5.93/15.0 6.8/17.3 6.8/17.2 6.8/17.2 6.8/17.2 6.8/17.2 7.25/18.4 7.25/18.4 7.27/18.4 7.25/18.4 7.25/18.4 7.25/18.4

Kilograms 11.9 13.6 15.4 15.4 25.4 25.4 11.3 6.8 11.3 6.8 20.9 20.9

R T C o n f i g u r a t i o n s

COT Equipment Catalog Number Description

O r d e r i n g I n f o r m a t i o n

The table below identifies the different features and capabilities of the PG-Flex Remote Terminals