ADC HiGain EDU-409 List 1 Скачать руководство пользователя страница 16 | Manualshive

Страница: 16 / 34

ADC HiGain EDU-409 List 1 Скачать руководство пользователя страница 16

Loopback Operation

150-409-115-05, Issue 5

10

January 26, 2000

EDU-409 List 1

L

OOPBACK

O

PERATION

When equipped with the EDU-409 List 1, a HiGain system can execute a
number of loopback commands. The loopbacks can be initiated from the ELU
craft port or from the ELU front-panel buttons.

For more information about doubler loopback commands, refer to the
appropriate ELU practices (see

“Product Support” on page 23

).

All NDU loopbacks are towards the network. All CDU loopbacks are towards
the customer.

is a diagram of a HiGain loopback system.

Figure 3.

HiGain Loopbacks

«
...
14
15
16
17
18
...
»

Содержание HiGain EDU-409 List 1

Страница 1: ...HiGain HiGain USER MANUAL EDU 409 HiGain DOUBLER L STATUS EDU 409 List 1 Doubler Unit Product Catalog 150 409 115 05...

Страница 2: ...ability Information contained in this document is company private to ADC DSL Systems Inc and shall not be modified used copied reproduced or disclosed in whole or in part without the written consent o...

Страница 3: ...ct the contents for signs of damage If the equipment has been damaged in transit immediately report the extent of damage to the transportation company and to ADC DSL Systems Inc Order replacement equi...

Страница 4: ...Unpack and Inspect Your Shipment 150 409 115 05 Issue 5 iv January 26 2000 EDU 409 List 1...

Страница 5: ...________________________________ 10 Functional Description___________________________________ 11 Doubler Enclosure Capacities with Full Solar Load 12 Alternative Doubler Enclosure Capacities 16 Micro...

Страница 6: ...a Remote Enclosure 8 3 HiGain Loopbacks 10 4 Doubler Block Diagram 11 5 AT T 819 Enclosure 17 LIST OF TABLES 1 HDSL Signal Cable Loss 2 2 EDU 409 List 1 Circuit Ranges 3 3 Front Panel Components and L...

Страница 7: ...approximately 7 32 km 24 000 feet of 0 51 mm wire or 5 49 km 18 000 feet of 0 4 mm wire loops Two doublers can triple the HCDS range to 10 97 km 36 000 feet of 0 51 mm wire or to 8 22 km 27 000 feet...

Страница 8: ...applicable to HDSL cable pairs running between the ELU and the EDU 409 List 1 and between the EDU 409 List 1 and another EDU or ERU The EDU 409 List 1 can be used in two span to four span circuits dep...

Страница 9: ...l Maximum Number of EDU 409 List 1 Doublers Per Circuit Line Powered Remote Local Powered Remote a ELU 319 List 5D ELU 319 List 6D 1 2 ELU 319 List 5E ELU 319 List 6E 3 b 2 a Requires ERU 412 List 1D...

Страница 10: ...rs If specific application constraints preclude using Rule 2 or if two different circuit layout choices have the same maximum span loss then use Rule 3 3 If Rules 1 and 2 are not applicable make the s...

Страница 11: ...ist 1 includes An open framed cover A front panel featuring Status display Configuration number COVER The open framed cover reduces thermal stress and improves reliability allowing air to freely circu...

Страница 12: ...page 9 Configuration number Contains either a five digit or six digit warranty configuration number or a standalone two or three digit configuration number as follows Digit 1 Last digit of shipment y...

Страница 13: ...409 List 1 in an enclosure perform the following steps and refer to the enclosure installation manual for information about cabling proper connections grounding and line and local power To install the...

Страница 14: ...ED flashes green if power is applied from an upstream line unit When the loops on both sides of the EDU synchronize the LED constantly glows solid green Refer to the section titled Alarms on page 9 fo...

Страница 15: ...hieved between the EDU 409 List 1 and both the upstream and downstream modules Flashing Red once per second Indicates an HDSL Cyclic Redundancy Check CRC error has occurred between the EDU 409 List 1...

Страница 16: ...ommands The loopbacks can be initiated from the ELU craft port or from the ELU front panel buttons For more information about doubler loopback commands refer to the appropriate ELU practices see Produ...

Страница 17: ...um range by approximately 3 66 km 12 000 feet of 0 51 mm wire or 2 74 km 9 000 feet of 0 4 mm wire per doubler A block diagram of the EDU 409 List 1 with pinouts is shown in Figure 4 The doubler unit...

Страница 18: ...13 and Table 6 on page 14 The capacities listed in Table 6 for both indoor and outdoor enclosures are based on a maximum outside temperature of 46 1 C 115 F Consult ADC for the latest deployment rules...

Страница 19: ...top of one unit can be adjacent to the bottom of another though the latter configuration should be avoided if possible 2 Allow as much room as possible between doublers on all four sides Rule 1 does...

Страница 20: ...Outdoor cabinet 809 6 12 All even or all odd numbered slots ALCATEL Outdoor canister pole wall mount 621204 5 12 1 3 5 8 10 621205 7 25 2 5 9 12 14 17 24 621206 9 50 2 5 9 12 14 17 24 31 47 CHARLES Ou...

Страница 21: ...conservative estimates Ongoing tests at ADC may result in increasing some of these estimates Thermal constraints must be observed to ensure reliable service for worst case conditions Table 6 Outdoor E...

Страница 22: ...e with doubler units If this method is used the maximum number of doublers that can occupy the same case with the standard repeaters must be reduced by one for every four T1 repeaters or fractions the...

Страница 23: ...contains slots 15 through 25 along with the Pressure PRES Filter FIL Capacitor CAP and COIL slots Figure 5 AT T 819 Enclosure The AT T 819 can house up to 13 EDU 409 List 1 doublers in the slots desig...

Страница 24: ...in Table 6 can be increased by two for non solar load shaded or manhole applications 4 Decrease capacities in Table 6 by one for every 2 7 C increase or fraction thereof in ambient temperatures above...

Страница 25: ...er to the first span to determine whether the fault condition is still present As long as the condition exists the power cycling and ground fault protection continues To discontinue the ground fault p...

Страница 26: ...nd Synchronization is being attempted with the upstream unit EDU 409 List 1 loses power The ELU at the Central Office is not present Measure the resistance of the HDSL input loop Resistance should be...

Страница 27: ...ernal Stratum 4 clock Power Consumption 3 0 W nominal 3 2 W maximum Maximum Provisioning Loss 35 dB 260 kHz 135 Wander and Jitter Nominal The absence of an HDSL framer from the EDU 409 List 1 reduces...

Страница 28: ...dity non condensing 5 to 95 Operating Temperature in Outside Enclosures Complies with Section 10 2 1 3 of TA NWT 001210 Operating Elevation 60 96 m 200 feet below sea level to 3 96 km 13 000 feet abov...

Страница 29: ...g System Turn Up and Testing Network Monitoring upstream or downstream Power Monitoring and Remote Surveillance Service Maintenance Agreements Systems Operation ADC Technical Assistance Center 800 638...

Страница 30: ...U HiGain E1 Line Unit ERU HiGain E1 Remote Unit FIL Filter GFD Ground Fault Detection HCDS High Capacity Digital Service HDSL High bit rate Digital Subscriber Line HRE HiGain Remote Enclosure KBPS Kil...

Страница 31: ...reases 26 gauge is 4 mm 0 0157 in diameter 24 gauge is 51 mm 0 0201 and so on 2B1Q Two Binary One Quaternary Line coding used for HDSL Cable Binder Group A group of 25 pairs of wires Bridged Tap A pai...

Страница 32: ...Glossary 150 409 115 05 Issue 5 26 January 26 2000 EDU 409 List 1...

Страница 33: ...the ADC published specifications and documentation for such software ADC s entire liability for software that does not comply with the foregoing warranty and is reported to ADC during the 90 day warra...

Страница 34: ...Avenue Tustin CA 92780 7013 Tel 714 832 9922 Fax 714 832 9924 Technical Assistance Tel 800 638 0031 Tel 952 917 3222 Fax 714 730 2400 DNV Certification Inc REGISTERED FIRM ISO 9001 TL 9000 DOCUMENT 1...

Отзывы:

Нет отзывов