Black Box MT243A Скачать руководство пользователя | Manualshive

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1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746

© Copyright 1998. Black Box Corporation. All rights reserved.

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Содержание MT243A

Страница 1: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 1998 Black Box Corporation All rights reserved ...

Страница 2: ...4 hours 7 A M Monday to midnight Friday 877 877 BBOX FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx ...

Страница 3: ......

Страница 4: ...ct is in compliance with the Electromagnetic Compatibility EMC directive and the Low Voltage Directive LVD of the Union European EU TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners ...

Страница 5: ...ne CCITT G 703 unstructured Connections 75 ohm Dual coax BNC connectors female RG59 or 2002 coax 120 ohm Shielded RJ 45 jack Link to Data Isolation 500 volts AC DC Operating Temperature 32 to 122 F 0 to 50 C Power Supply None required Size Without handles 3 5 H x 19 W x 1 9 D 8 9 x 48 3 x 4 8 cm ...

Страница 6: ...5 ohm CPE hardware It also allows carriers who have standardized on 75 ohm coax to provide 120 ohm terminations to their customers in keeping with European ONP requirements Supporting E1 data rates to 2 048 Mbps the G 703 Balun Module Panels bi directionally match not only signal impedance but also the pulse shapes of the signals according to the CCITT G 703 standard The panels mount in a standard...

Страница 7: ...nnects 75 ohm dual coax to 120 ohm twisted pair Bi directional signal conversion according to CCITT G 703 Data rates up to 2 048 Mbps Low profile design Mounts in standard 19 inch rack No AC power or batteries required Strap selectable modular RJ 45 pinouts ...

Страница 8: ...veral grounding options This chapter shows the jumper locations and describes their functions There are five configuration jumpers on the back of the Module s printed circuit board These jumpers are labeled JP1 JP2 JP3 JP4 and JP7 Figure 3 1 shows their positions on the PC board as well as the relative pin numbers on the jumpers ...

Страница 9: ...er Location Figure 3 2 shows the orientation of the rear interface card straps Note that the strap can either be on posts 1 and 2 or on posts 2 and 3 Figure 3 2 Possible Positions for the Jumpers 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 JP4 JP3 JP1 JP2 JP7 ...

Страница 10: ...e are more detailed explanations of each jumper Table 3 1 Strap Summary Table Strap Function Position 1 2 Position 2 3 JP1 Coax TX Shield RJ 45 Pin 3 Open Connected JP2 Coax TX Shield RJ 45 Shield Connected Open JP3 Coax RX Shield RJ 45 Shield Connected Open JP4 Coax RX Shield RJ 45 Pin 6 Open Connected JP7 RJ 45 Shield Chassis Ground Connected Open Indicates default setting ...

Страница 11: ...e default Connected setting the 75 ohm transmit out coaxial shield connects to RJ 45 pin 3 the transmit pair shield JP1 Setting Description Position 1 2 Not Connected 75 ohm TX shield not connected to RJ 45 TX pair shield Pin 3 Position 2 3 Connected 75 ohm TX shield connected to RJ 45 TX pair shield Pin 3 ...

Страница 12: ...onnected setting the 75 ohm transmit out coaxial shield connects to the RJ 45 overall foil shield JP2 Setting Description Position 1 2 Connected 75 ohm TX shield connected to the RJ 45 overall foil shield Position 2 3 Not Connected 75 ohm TX shield not connected to the RJ 45 overall foil shield ...

Страница 13: ...fault Connected setting the 75 ohm receive in coaxial shield connects to RJ 45 pin 6 the receive pair shield JP3 Setting Description Position 1 2 Connected 75 ohm RX shield connected to the RJ 45 overall foil shield Position 2 3 Not Connected 75 ohm RX shield not connected to the RJ 45 overall foil shield ...

Страница 14: ... default Connected setting the 75 ohm coaxial shield connects to the RJ 45 overall foil shield JP4 Setting Description Position 1 2 Not Connected 75 ohm RX shield not connected to the RJ 45 RX pair shield Pin 6 Position 2 3 Connected 75 ohm RX shield connected to the RJ 45 RX pair shield Pin 6 ...

Страница 15: ...eld to Chassis Ground In the default Connected setting the RJ 45 overall shield connects to chassis ground JP7 Setting Description Position 1 2 Connected RJ 45 shield connects to Frame Ground Position 2 3 Not Connected RJ 45 shield does not connect to Frame Ground ...

Страница 16: ... to 16 G 703 Balun Modules Measuring only 3 5 high the Chassis is designed to occupy only 2U in a 19 inch rack Sturdy front handles allow the Chassis to be extracted and transported conveniently Figure 4 1 The Chassis Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx ...

Страница 17: ...to Figure 4 2 as a guide and follow the steps below to install each additional module into the chassis 1 Slide the two star washers over the screws on each end of the mount space 2 Slide the G 703 Balun Module PC board over the screws with the BNC connectors facing downward Then push the BNC connectors an RJ 45 connector through the matching slots in the front of the rack assembly 3 Slide a plasti...

Страница 18: ... 4 Installation Figure 4 2 Mounting the Module to the Rack 5 Secure the Module by connecting a lock washer and a hex nut on each screw Lexan Shield Modules Star Washer behind the module Spacer Lock Washer Hex Nut ...

Страница 19: ... RX Receive Data Input Simply connect the G 703 lines as follows G 703 Network G 703 Balun Module BNC Connector BNC Connectors TX RX RX TX NOTE The total allowable cable lengths are subject to the constraints of the ITU CCITT G 703 recommendation However we recommend a total patch cable length including coaxial and twisted pair cabling of no more than 320 feet 200 m ...

Страница 20: ... connection 8 No connection Install the twisted pair wires by making the following connections G 703 Instrument Module RJ 45 Pin No TX Output 4 TX Output 5 TX Shield 3 RX Input 1 RX Input 2 RX Shield 6 NOTE The total allowable cable lengths are subject to the constraints of the ITU CCITT G 703 recommendation However we recommend a total patch cable length including coaxial and twisted pair cabling...

Страница 21: ...SIS Appendix A Pin Assignments 120 Ohm Twisted Pair Interface 1 Transmit Data Out 2 Transmit Data Out 3 Transmit Data Shield 4 Receive Data In 5 Receive Data In 6 Receive Data Shield 7 no connection 8 no connection Pin No Signal RJ 45 Jack ...

Страница 22: ...k Diagram Appendix B Block Diagram JP7 JP3 JP4 JP2 JP1 Chassis Ground RX BNC Shield TX 75 Ohm RX TX BNC Shield RJ 45 TX Shield RX Shield RJ 45 Shield RJ 45 Shield RX Twisted Pair TX Twisted Pair G 703 Impedance Converter ...

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