Related Manuals for BT NTU6
Summary of Contents for BT NTU6
- Page 1 Operating guide Private Circuits NETWORK TERMINATING UNIT 6 KiloStream Private Circuits International KiloStream Private Circuits...
- Page 2 Operating guide To report a fault with your KiloStream private circuit, please ring your BT Service Centre on this number: Please quote: your circuit type your circuit number(s) your end address For International KiloStream private circuits please ring the number...
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Page 3: Table Of Contents
Operating guide Contents 1 About this guide 2 About NTU6 3 The equipment you’ll see Single NTU Multiple NTU Cabling distance 4 Getting started Examining the set-up of your NTU Looking at the corrent status of your NTU 5 If you have a problem... -
Page 4: About This Guide
Operating guide 1 About this guide This Operating Guide gives you information on the network terminating unit 6 (NTU6), including: • What the display means • How to use the test facilities • What to do if you have a problem. -
Page 5: The Equipment You'll See
This may be BT or an independent supplier. One of our engineers will connect the NTU to the BT network. If you alter the line connections in any way, you will set off remote alarms... -
Page 6: Cabling Distance
LCD, press the appropriate DISP button. A yellow LA lamp confirms the NTU you’ve selected. The LCD will continue to show information from that NTU until you press another DISP button. Front view of NTU6 shelf mounted unit FAULT Liquid Crystal NTUs... -
Page 7: Getting Started
X.21 2.4-48kbit/s RX NRDY S: NTU NOT READY X.21 bis (v.24) cct. S: NTU READY 108/1 held high by BT X.21 bis (v.24) cct. RX NRDY S: NTU NOT READY 108/1 under your control Whenever a binary 1 is present in the recieved data, the RXD light will... -
Page 8: Examining The Set-Up Of Your Ntu
Operating guide Examining the set-up of your NTU You can use the menu (which is display-only) to examine the OPTIONS set-up of your NTU. There are six messages: 0: X21/X21 BIS 0: 105 SET ON 0: 106 DELAY 0: 107=108/1 0: 108/1 SET ON NO X21 OPTIONS If your NTU is set for X21, press the up or down Scroll button to see the... -
Page 9: If You Have A Problem
If a fault proves to be in your terminal equipment or on-site wiring, rather than in the private circuit, BT reserves the right to charge for time spent on a visit to your premises: it’s in your interest to carry out these checks first. -
Page 10: Testing Your Private Circuit
You can test the circuit and the operation of your NTU by using the . You can implement the following conditions, which may help TEST MENU you isolate faults in either the BT network or your terminal equipment. All the tests, except the self-test and the lamp test, interrupt data flow. select... -
Page 11: Testing Your Terminal Equipment
Operating guide For international KiloStream circuits Distant country Local site Distant site Customer Customer International International Terminal Terminal Gateway Gateway Equipment Equipment Distant access access section section Digital Network Main Link Local Loopback loop Types of Test Loops Testing your terminal equipment To test the connection and operation of your terminal equipment through the customer interface of the NTU, you need to apply to a local loop. -
Page 12: Testing The Operation Of The Entire Circuit
Operating guide Testing the connection from the network If there is a problem with your KiloStream circuit, a BT engineer may ask you to apply a loopback. This helps locate the fault by allowing BT to test the connection from the network through the local end and the NTU. - Page 13 LCD returns to STATUS MENU On International KiloStream circuits it is not possible to call up a remote loop from your NTU6. You will need to contact the distant end user and ask them to apply a loopback.
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Page 14: How To Report A Fault
Operating guide 11 How to report a fault BT has established X-Stream Service Centres to deal exclusively with maintaining KiloStream and MegaStream digital private circuits. Before you contact an X-Stream Service Centre, you should: • ensure that the fault is in the private circuit or NTU and isn’t due to your own wiring or terminal equipment •... - Page 15 Operating guide BT X-Stream Service Centres are manned by specialist staff who have access to computer-aided facilities to speed the handling of any problem with your KiloStream private circuit; these facilities include access to alarm information. The X-Stream Service Centre staff will keep you informed of progress made towards restoring your service, and will report back to you when service has been restored.
- Page 16 Telecommunications plc’s respective standard conditions of contract. Nothing in this publication forms any part of any contract. BT and the BT logo are trademarks of British Telecommunications plc. © British Telecommunications plc 2003 Registered office: 81 Newgate Street, London EC1A 7AJ Registered in England and Wales No: 4190816 Produced by stratauk.net...
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