E1 Quad Fibre Loop Converter Introduction The Quad Fibre Loop Converter* (QFLC) system is a cost-effective optical multiplexer that transports four E1s over two singlemode fibres. The QFLC system can be configured to maximize facility utilization for point-to-point or point-to-multipoint topologies. The QFLC system can also be used for fibre ring networks for both dual-feed and single-feed applications to a customer. The QFLC system accepts standard electrical E1 signals and can be used in a stand-alone configuration with any approved multiplexer or network element that generates a standard E1 (6.703 Mbps) signal. The QFLC system consists of a rack mount central exchange (CE) chassis with up to eight QFLC modules. Sixteen protected (or thirty-two unprotected) E1s can be transported from a single eight-position CE chassis and can hub to four remote terminals (RTs) in a protected configuration (eight RTs in an unprotected configuration). Protected vs. Unprotected Circuits The ADC QFLC multiplexes up to four E1 signals for simultaneous two-way (full duplex) transport over two singlemode fibres for distances up to 33 km. Two fibres are used when deploying unprotected service. Four fibres should be planned for use when deploying protected service; two fibres are used for the working circuits and two fibres are dedicated to circuit protection. The QFLC system configured for protected applications is a 1:1 protected system. Automatic protection switching (APS) is established with a setting on the chassis’ backplane during installation. This ensures against failures to either the optical facilities or the electronics. The system also monitors degrading bit error rate (BER), and it will protection switch once the bit error rate passes a user-selectable threshold. In the unprotected configuration, one module is located at the CE and one module is located at the RT. In the protected configuration, a second set of modules (one at the CE and one at the RT) is connected to two additional singlemode fibres. If service fault conditions occur in the working system (i.e., loss of signal, BER threshold violation, module failure), the protect system is automatically switched, non-interrupted, into service and appropriate alarms are triggered to identify the fault state. Note that with the ADC QFLC system, redundancy is provided by duplicating the working system with identical components. No external protection switches or other subsystems are needed. One plug-in module performs all functions: master, remote and stand-by. Application Overview * US Patent Number 5,047,735. 2 www.adc.com • +1-952-938-8080 • 1-800-366-3891 4/04 • 479 E1 Quad Fibre Loop Converter Quad Fibre Loop Converter System Description ADC QFLC System Unprotected Configuration Equipment List of ADC Products Quantity Central Exchange/Controlled Environmental Vault (CEV)/Hut Universal 8 position chassis 1 QFLC modules (based on number of locations) 8 max. per chassis Micro processor unit (optional) 1 Customer Premises (Each Location) 2 position chassis 1 QFLC modules 2 max. per chassis Battery back-up (optional) 1 M P U Q F L C 12345678 2 FIBRES CENTRAL EXCHANGE/ CEV/HUT/CABINET CUSTOMER PREMISES ON-LINE 4 E1s TO NETWORK ON-LINE CUSTOMER PREMISES 4 E1s 1 QFLC 3 www.adc.com • +1-952-938-8080 • 1-800-366-3891 4/04 • 479 E1 Quad Fibre Loop Converter Quad Fibre Loop Converter System Description ADC QFLC System Protected Configuration Equipment List of ADC Products Quantity Central Exchange/Controlled Environmental Vault (CEV)/Hut Universal 8 position chassis 1 QFLC modules (based on number of locations) 8 max. per chassis Micro processor unit (optional) 1 Customer Premises (Each Location) 2 position chassis 1 QFLC modules 4 max. per chassis Battery back-up (optional) 1 M P U Q F L C 12345678 4 FIBRES, TWO FIBRES WORKING AND TWO FIBRES PROTECT CENTRAL EXCHANGE/ CEV/HUT/CABINET CUSTOMER PREMISES Q F L C ON-LINE 4 E1s TO NETWORK 4 E1s ON-LINE 1 QFLC 2 QFLC STAND-BY STAND-BY 4 www.adc.com • +1-952-938-8080 • 1-800-366-3891 4/04 • 479 E1 Quad Fibre Loop Converter Quad Fibre Loop Converter System Description QFLC Transport Module For E1 transport, the QFLC system requires only one type of module. This module is interchangeable and is the same module for working and protect, CE/RT and customer premises. In a protected system, two modules are required at each end (CE/RT and customer premises), one pair for main and one pair for protect. In an unprotected system, one module is required at each end (CE/RT and customer premises). Technical specifications for the QFLC are summarized below. Each E1 circuit provisioned via the QFLC can be individually provisioned for either AMI or HDB3. The two line codes can be intermixed on the same module and are automatically duplicated on the protect module in the event of a failure. The selection switches for AMI/HDB3 are located on the module’s faceplate. This allows for in-service changes to the line code settings without removing the module from the chassis and without affecting service on the other E1s. Two levels of performance-based alarms (BER) are selectable on the QFLC, via switches on the faceplate. Selectable BER switching range can be selected from 10 -4 to 10 -10 with minor alarm notification selectable from 10 -6 to 10 -10 . These levels are user selectable and can be changed in-service when needed. MPU The Micro Processor Unit (MPU) is a monitoring system interface between the QFLC modules and a Telemetry Byte Oriented Serial (TBOS) interface administration location. The MPU is not required at the customer premises site as all alarms are transported back to the CE. TBOS terminates the alarms and extends them to the network alarm surveil-lance center. The MPU is mounted in the eight position CE/RT chassis. An MPU module is not required in the system if not employing TBOS. For alternative network management systems, contact ADC International Application Engineering. Specifications E1s/System: 4 Fibre: Singlemode Fibres/Unprotected System: 2 Fibres/Protected System: 4 Wavelength: 1310 nm Optical Budget: 22 dB* Transmission Distance (nominal): 33 km (20 miles) Fibre Connector: FC Line Code Options: AMI/HDB3 (selectable) Operating Temperatures: -0 ° C to 50 ° C *When used with dispersion shifted fibre, optical budget is 21 dB. 5 www.adc.com • +1-952-938-8080 • 1-800-366-3891 4/04 • 479 E1 Quad Fibre Loop Converter Quad Fibre Loop Converter Module Features Alarm and Test Access Diagnostics of remote far end alarms can be accessed locally at the CE by pressing the Remote Alarm Display switch. The far end alarms will display on the local CE QFLC front plate indicators. This feature can be used to determine the cause of a remote alarm without dispatching a troubleshooter, simplifying trouble diagnostics and allowing for single- ended troubleshooting. The module also has individual E1 remote loopback capability which allows single-ended performance testing with end-to-end link visibility from the CE. Test access jacks for maintenance are built into the system at the customer premises wall mount chassis. AMI/HDB3 Option Each E1 signal is optionable by the user. Clear Channel Frame Format Option The QFLC is transparent to frame formats. E2A/TBOS Alarm Compatibility The QFLC system provides major, minor and remote relay contact closures for interface to E2A alarm systems. The QFLC system is upgradeable to TBOS interface. Remote Alarms The QFLC provides two types of remote alarms. The remote alarms report the module and alarm status of the far end unit to the near end unit. By pressing the Remote Alarm Display switch on the near end unit, the front panel instantly displays the LED status of the far end unit. The housekeeping alarm inputs tie in external alarms, such as open door, air conditioning, or channel bank alarms. Like the remote alarms, the housekeeping alarms are transported via an overhead channel. QFLC Front View ENABLE MAJOR MINOR RMT/HSKP BER Y MOD FAIL R OPT LOS Y OFF R ONLINE G STDBY Y FORCE SW Y APS LOCKOUT R E1 LOS/LPBK STATUS RLB NORMAL UNEQPT 1 2 3 4 1 2 3 4 LINE CODE OFF = HDB3 G = AMI STATUS G = INSERV R = LOS Y = LPBK OFF = UNEQPT 1 2 3 4 SELECT AMI HDB3 RESET LMPTST/ FORCE SW RMT ALM DISPLAY 4 5 6 7 8 9 10 n = 6 7 8 9 10 BER > 10 -n PROT SW BER > 10 -n MIN ALM 27.18 cm 3.81cm 6 www.adc.com • +1-952-938-8080 • 1-800-366-3891 4/04 • 479 E1 Quad Fibre Loop Converter QFLC Applications Point-to-Multipoint From a central office or remote terminal, the QFLC system can be configured to serve four protected E1s to four separate customer or eight unprotected E1s to eight separate customers. Central Exchange Point to Multipoint Unprotected Configuration Protected Configuration A C / D C Q F L C 1 F I P END USER #1 BATTERY BACKUP E1 SERVICES E1 CENTRAL EXCHANGE QFLC M P U Q F L C 1 Q F L C 2 Q F L C 3 Q F L C 4 DDF FDF 2 FIBRES A C / D C Q F L C 1 F I P END USER #2 BATTERY BACKUP E1 SERVICES END USER #3 END USER #4 A C / D C Q F L C 1 F I P BATTERY BACKUP E1 SERVICES A C / D C Q F L C 1 F I P BATTERY BACKUP E1 SERVICES A C / D C Q F L C 1 F I P END USER #1 BATTERY BACKUP E1 SERVICES Q F L C 2 E1 CENTRAL EXCHANGE QFLC M P U Q F L C 1 DDF FDF 4 FIBRES (2 W/ 2 P) A C / D C Q F L C 1 F I P END USER #2 BATTERY BACKUP E1 SERVICES END USER #3 END USER #4 Q F L C 2 A C / D C Q F L C 1 F I P BATTERY BACKUP E1 SERVICES Q F L C 2 A C / D C Q F L C 1 F I P BATTERY BACKUP E1 SERVICES Q S 3 F 2 Q F L C 2 Q F L C 3 Q F L C 4 Q F L C 5 Q F L C 6 Q F L C 7 Q F L C 8 WP WPWP WP WP W P WP WP • Up to eight (unprotected) or four (protected) customer locations can be served from one CE 8 position chassis. • When adding service to existing customer or new customer you can serve out of existing CE chassis or new CE chassis depending on chassis capacity available, determined by current or planned use. • In the unprotected configuration, two fibres are used to customer premises (transmit/ receive); in the protected configuration, four fibres are used to customer premises (2 working / 2 protect). Equipment List of ADC Products Quantity Central Exchange Universal 8 position chassis 1 QFLC modules (based on number of locations) 8 max. per chassis Micro processor unit (optional) 1 Customer Premises (Each Location) 2 position chassis 1 QFLC modules Unprotected configuration 2 max. per chassis Protected configuration 4 max. per chassis Battery back-up (optional) 1 DDF = Digital Distribution Frame FDF = Fibre Distribution Frame FIP = Fibre In-Building Panel MPU = Micro Processor Unit NID = Network Interface Device P = Protect QFLC = E1 Quad Fibre Loop Converter W = Work 7 www.adc.com • +1-952-938-8080 • 1-800-366-3891 4/04 • 479 E1 Quad Fibre Loop Converter Hubbing and Campus The eight position QFLC chassis used in conjunction with a 140 megabit (DDM) or 155 megabit (SDM) multiplexer can support multiple customers in a hubbing or campus application. Central Exchan g e Hut Business Park Unprotected Configuration Protected Configuration A C / D C Q F L C 1 F I P END USER #1 BATTERY BACKUP E1 RT (HUT/CEV) QFLC M P U Q F L C 1 Q F L C 2 Q F L C 3 Q F L C 4 FDF 2 FIBRES A C / D C Q F L C 1 F I P END USER #2 BATTERY BACKUP END USER #3 END USER #4 A C / D C Q F L C 1 F I P BATTERY BACKUP A C / D C Q F L C 1 F I P BATTERY BACKUP N I D N I D N I D N I D E1 E1 E1 E1 E1 DDF 155 Mb MUX 155 Mb MUX FDF CENTRAL EXCHANGE F I P END USER #1 BATTERY BACKUP E1 RT (HUT/CEV) FDF 4 FIBRES (2 W/ 2 P) F I P END USER #2 BATTERY BACKUP END USER #3 END USER #4 F I P BATTERY BACKUP F I P BATTERY BACKUP N I D N I D N I D N I D E1 E1 E1 E1 E1 DDF 155 Mb MUX 155 Mb MUX FDF CENTRAL EXCHANGE A C / D C Q F L C 1 Q F L C 2 WP QFLC M P U Q F L C 1 Q F L C 2 Q F L C 3 Q F L C 4 A C / D C Q F L C 1 WPWP Q F L C 5 Q F L C 6 Q F L C 7 Q F L C 8 WPWP Q F L C 2 WP A C / D C Q F L C 1 Q F L C 2 WP A C / D C Q F L C 1 Q F L C 2 WP • Up to eight (unprotected) or four (protected) customer locations can be served from one CE 8 position chassis. • When adding service to existing customer or new customer you can serve out of existing CE chassis or new CE chassis depending on chassis capacity available, determined by current or planned use. • In the unprotected configuration, two fibres are used to customer premises (transmit/ receive); in the protected configuration, four fibres are used to customer premises (2 working / 2 protect). Equipment List of ADC Products Quantity RT/CEV/Hut Universal 8 position chassis 1 QFLC modules (based on number of locations) 8 max. per chassis Micro processor unit (optional) 1 Customer Premises (Each Location) Universal 4 position chassis 1 QFLC modules Unprotected configuration 2 max. per chassis Protected configuration 4 max. per chassis Battery back-up (optional) 1 CEV = Controlled Environmental Vault DDF = Digital Distribution Frame FDF = Fibre Distribution Frame FIP = Fibre In-Building Panel MPU = Micro Processor Unit NID = Network Interface Device P = Protect QFLC = E1 Quad Fibre Loop Converter W = Work QFLC Applications 8 www.adc.com • +1-952-938-8080 • 1-800-366-3891 4/04 • 479 E1 Quad Fibre Loop Converter Distribution Within High Rise Building The four position customer premises wall mount chassis can be used to provide fibre E1 extensions using optical riser cable in a high rise building. Central Exchange Building High Rise Protected Configuration Unprotected Configuration A C / D C Q F L C 1 BATTERY BACKUP E1 QFLC M P U Q F L C 1 Q F L C 2 155 Mb MUX TO CENTRAL EXCHANGE E1 NID A C / D C Q F L C 1 BATTERY BACKUP E1 NID FLOOR #10 BASEMENT FLOOR #30 HIGH RISE BUILDING A C / D C Q F L C 1 BATTERY BACKUP E1 Q F L C 2 WP QFLC M P U Q F L C 1 Q F L C 2 Q F L C 3 Q F L C 4 WPWP 155 Mb MUX TO CENTRAL EXCHANGE E1 NID A C / D C Q F L C 1 BATTERY BACKUP E1 Q F L C 2 WP NID FLOOR #10 BASEMENT FLOOR #30 HIGH RISE BUILDING • Up to eight (unprotected) or four (protected) customer locations can be served from one CE 8 position chassis. • QFLC chassis on customer floor is a wall mount chassis. Equipment List of ADC Products Quantity Basement (Hubbing) Location Universal 8 position chassis 1 QFLC modules (based on number of locations) 8 max. per chassis Micro processor unit (optional) 1 Customer Premises (Each Location) Universal 4 position chassis 1 QFLC modules Unprotected configuration 2 max. per chassis Protected configuration 4 max. per chassis Battery back-up (optional) 1 MPU = Micro Processor Unit NID = Network Interface Device P = Protect QFLC = E1 Quad Fibre Loop Converter W = Work QFLC Applications 9 www.adc.com • +1-952-938-8080 • 1-800-366-3891 4/04 • 479 E1 Quad Fibre Loop Converter Digital Loop Carrier (DLC) Remote Pedestal The QFLC can be used to feed remote pedestals or cabinets for DLC applications using the ADC TDC-240, up to 240 subscribers (POTS or COIN) can be serviced with a single QFLC system. • This application provides four E1s via fibre to feed a DLC cabinet QFLC Applications CEV = Controlled Environmental Vault DLC = Digital Loop Carrier FDF = Fibre Distribution Frame MPU = Micro Processor Unit W = Work P = Protect Protected Configuration Unprotected Configuration E1 RT (HUT/CEV) TO OTHER DLC REMOTE CABINETS E1 DDF 155 Mb MUX QFLC M P U Q F L C 1 W •• REMOTE CABINET 2 POSITION RACK MOUNT QFLC DLC SYSTEM TO CENTRAL EXCHANGE QFLC W •• 2 FIBRES FDF E1 RT (HUT/CEV) 4 FIBRES (2 W/ 2 P) E1 DDF 155 Mb MUX QFLC M P U Q F L C 1 Q F L C 2 WP •• •• REMOTE CABINET 2 POSITION RACK MOUNT QFLC DLC SYSTEM TO CENTRAL EXCHANGE QFLC W QFLC P TO OTHER DLC REMOTE CABINETS FDF Equipment List of ADC Products Quantity RT/CEV/Hut Universal 8 position chassis 1 QFLC modules (based on number of locations) 8 max. per chassis Micro processor unit (optional) 1 Remote Cabinet (Each Location) 2 position chassis 1 QFLC modules 2 max. per chassis Battery back-up (optional) 1 Digital Loop Carrier (1-240 subscribers) TDC 240* central exchange terminal 1 TDC 240* remote terminal 1 *For more information on the TDC 240, please call ADC Telecommunications. 10 www.adc.com • +1-952-938-8080 • 1-800-366-3891 4/04 • 479 E1 Quad Fibre Loop Converter Universal 8 Position Rack Mount Chassis The CE and RT universal rack mounted chassis are available in either eight or two position configurations. Up to four (4) eight position chassis can fit into a 2.14 m (7') bay and should be fused at 5 Amps each. The engineer should determine the number of chassis initially installed. Additional growth chassis (not to exceed a total of four per bay) can be added to a bay as required. The eight position chassis is powered by two -48 Vdc power feeds. This chassis may be ordered with either front or rear access, and with wire-wrap or 50-pin connectors for wiring the E1 terminations. • Dimensions (HxWxD): 39.92 x 48.26 x 30.43 cm (15.72" x 19" x 11.98"); extender brackets supplied for 58.42 cm (23") rack practices • Weight (empty): 15.90 kg (35 lbs) • 10.16 or 12.7 cm (4" or 5") recess mounting, EIA or WECO rack. • Chassis access points for fibre optic cabling is either front or rear, left or right. • Chassis access points for E1 cable is either left front or right rear. • -48 Vdc A and B power feeds. • Fuse each chassis at 5 Amps. Description of Modules and Chassis CE and RT Rack Mount Chassis 12345678 39.93 cm 35.56 cm 46.53 cm 48.26 cm E1 TERMINATION AND ALARM ACCESS PANEL (FRONT OR REAR ACCESS) 30.43 cm FRONT FIBRE OPTIC PATCH CORD ACCESS BOTH SIDES REAR FIBRE OPTIC PATCH CORD ACCESS BOTH SIDES FRONT ACCESS TO COPPER E 1 TERMINATI O N PANEL REAR ACCESS TO COPPER E1 TERMINATI O N PANEL [...]... ACCESS REAR FIBRE OPTIC PATCH CORD ACCESS SIDE VIEWS • 4/04 37 35 FUSE PANEL 40 479 E1 Quad Fibre Loop Converter 2.14 m (7') Bay Configuration • Dimensions (HxWxD): 10.16 x 58.42 x 30.48 cm (4" x 23" x 12"); 48.26 cm (19") version available • Weight of empty chassis: 7.27 kg (16 lbs) • Flush, 5.08, 10.16 or 12.7 cm (2", 4" or 5") recessed mounting, WECO rack • Chassis access points for fibre optic... four protected E1s or eight unprotected E1s, use the two position front access chassis This two position chassis also has integrated jacks for access to the E1 circuit and is recommended for applications where rack space is limited (e.g., in cabinets) 1.22 cm (2) 56.69 cm 58.42 cm FRONT VIEW REAR VIEW FRONT ACCESS TO COPPER E1 TERMINATION PANEL FRONT FIBRE OPTIC PATCH CORD ACCESS REAR FIBRE OPTIC PATCH... optic cabling is either front left or rear right or left • Chassis access for E1 cable is front right • -48 Vdc A and B power feeds • Fuse each chassis at 3 Amps w w w a d c c o m • + 1 - 9 5 2 - 9 3 8 - 8 0 8 0 • 1 - 8 0 0 - 3 6 6 - 3 8 9 1 11 Description of Modules and Chassis Customer Premises Chassis E1 Quad Fibre Loop Converter Universal 4 Position Wall Mount Chassis 42.88 cm UNIVERSAL FOUR POSITION... to be an integrated unit Included in the lockable wall mount chassis is Bantam jack access to the E1 circuit, redundant AC power converters (optional) and storage of excess fibre The customer premises wall mount chassis can be configured for two protected systems (8 E1s) or two unprotected systems (8 E1s) Contact ADC for information on alternative mains supplies (200-240 volt, 50/60 Hz) • Dimensions... Off-line and on-line refer to QFLC system in a protect configuration On-line module refers to the working modules in a protect system Off-line modules refer to the protect, back-up module 4/04 • 479 E1 Quad Fibre Loop Converter The CE/RT eight position chassis requires -48 Vdc for operation The four position customer premises wall mount chassis can be powered via -48 Vdc or 110/220 VAC w w w a d c c o m •... configuration is desirable, but only 23" wide rack space is available 2 Position Horizontal Bracket The 2 position horizontal bracket is used to vertically wall mount 2 position chassis 4/04 • 479 E1 Quad Fibre Loop Converter Swing Out Bracket w w w a d c c o m • + 1 - 9 5 2 - 9 3 8 - 8 0 8 0 • 1 - 8 0 0 - 3 6 6 - 3 8 9 1 14 Web Site: www.adc.com From North America, Call Toll Free: 1-800-366-3891 • Outside... points for fibre optic cabling is either top or bottom • Chassis access for E1 cable is top or bottom (wire-wrap configuration) or external right side access (RJ configuration) • 115 VAC / 220 VAC or -48 Vdc (dependent on chassis ordered) • Lockable door 5.99 cm 40.44 cm 31.50 cm 479 25.22 cm SEE DETAIL A 31.75 cm 4/04 • 6.65 cm 7.95 cm LEFT SIDE VIEW FRONT VIEW RIGHT SIDE VIEW BACK VIEW FIBRE AND COPPER... (dependent on chassis ordered) • Lockable door 5.99 cm 40.44 cm 31.50 cm 479 25.22 cm SEE DETAIL A 31.75 cm 4/04 • 6.65 cm 7.95 cm LEFT SIDE VIEW FRONT VIEW RIGHT SIDE VIEW BACK VIEW FIBRE AND COPPER ENTRY FIBRE AND COPPER ENTRY 1 2 3 4 5 (-) UPPER POWER SUPPLY (-) LOWER POWER SUPPLY (+) UPPER POWER SUPPLY (+) LOWER POWER SUPPLY GND (BOTH) DETAIL A AC POWER CORD BOTTOM VIEW w w w a d c c o m TOP VIEW • . E1 Quad Fibre Loop Converter Introduction The Quad Fibre Loop Converter* (QFLC) system is a cost-effective optical multiplexer that transports four E1s. 1-800-366-3891 4/04 • 479 E1 Quad Fibre Loop Converter Quad Fibre Loop Converter System Description QFLC Transport Module For E1 transport, the QFLC system