background image

TM

 1

7511-A2-GN10-10

January 1999

Model 7511 Dual DSU
Startup Instructions

Document Number 7511-A2-GN10-10

January 1999

Product Documentation on the World Wide Web

We provide complete product documentation online. This lets you search the
documentation for specific topics and print only what you need, reducing the
waste of surplus printing. It also helps us maintain competitive prices for our
products.

Complete documentation for this product is available at www.paradyne.com.
Select 

Service & Support 

 Technical Manuals 

 Subrate Digital Access

Devices.

Select the following document:

7511-A2-GB20
Model 7511 Dual DSU User’s Guide

To request a paper copy of a Paradyne document:

Within the U.S.A., call 1-800-PARADYNE (1-800-727-2396)

Outside the U.S.A., call 1-727-530-8623

Preparation

Make sure you have:

A clean, well-lit, and ventilated site that is free from environmental extremes.

One to two feet of clearance for cable connections.

An operable network connection.

Package Checklist

Verify that your package contains the following:

A Model 7511 DSU

A backplate bearing two 25-pin connectors

Two V.35 adapter cables

Содержание Dual DSU 7511

Страница 1: ...able at www paradyne com Select Service Support Technical Manuals Subrate Digital Access Devices Select the following document 7511 A2 GB20 Model 7511 Dual DSU User s Guide To request a paper copy of...

Страница 2: ...f the proper static control precautions contact your nearest sales or service representative Configuring the DSUs Procedure To configure the Model 7511 Dual DSU 1 Review Table 1 to determine the prope...

Страница 3: ...S2 S3 S4 S5 Figure 1 Model 7511 Switch Locations Table 1 Configuration Options 1 of 5 Switch Options and Usage Default in Bold Line Rate S1 1 DSU A S3 1 DSU B S1 S2 S3 S4 DSU A DSU B ON ON ON ON DDS o...

Страница 4: ...ans timing is provided by the DTE Ten Minute Test Abort Timer S1 4 DSU A S3 4 DSU B S1 S2 S3 S4 DSU A DSU B ON ON ON ON Determines whether user initiated tests automatically terminate after 10 minutes...

Страница 5: ...ction S1 7 DSU A S3 7 DSU B S1 S2 S3 S4 DSU A DSU B ON ON ON ON Determines whether the DSU responds to V 54 Loop Up and Loop Down sequences from the remote DSU Off Disable V 54 loop sequences are igno...

Страница 6: ...s ON ON Forced On CTS is forced on after a successful self test RTS S2 3 DSU A S4 3 DSU B S1 S2 S3 S4 DSU A DSU B ON ON ON ON Determines the operation of interchange circuit CT105 Request to Send RTS...

Страница 7: ...remote loopback test ON Disable A 511 pattern is not generated External test equipment is required to perform a Bit Error Rate test CT141 S5 1 DSU A S5 3 DSU B S5 DSU A DSU B ON Determines whether a l...

Страница 8: ...At the rear of the carrier place the tab on the connector plate in its slot in the carrier s backplane The connector plate must use the same slot position intended for the DSU card 2 Loosely fasten th...

Страница 9: ...ing the circuit pack lock Rotate the lock to the open position and open the latch Circuit Card Guides Circuit Pack Lock Latch Open Unlocked Closed Locked 495 14813 2 At the front of the carrier hold t...

Страница 10: ...e carrier All LEDs on the card light up momentarily The card completes its power up self test The Alarm and OK LEDs are turned off or on depending on the test results 5 Press the faceplate latch to se...

Страница 11: ...e for DSU As on 7511 cards in Slots 9 16 The NIM on the right side for DSU As on 7511 cards in Slots 1 8 Connector P22 for DSU Bs on 7511 cards in Slots 9 16 Connector P21 for DSU Bs of 7511 cards in...

Страница 12: ...service representative An Alarm LED is on DDS Mode The subscriber loop rate is not matched to the 7511 s configured rate No DDS Signal Verify the subscriber loop rate If the NS LED is lit Verify that...

Страница 13: ...ation option verify that it is enabled An LED is not lit LED is burned out While the DSUs are not in use cycle power to the card by pulling it slightly out of the carrier then replacing it If the LED...

Страница 14: ...locations Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface Use caution when installing or modifying telephone lines Avoid u...

Страница 15: ...the user Should you experience difficulty with this equipment refer to Warranty Sales and Service Information For Digital Data Service DDS installations inform the local telephone company of the appr...

Страница 16: ...EN assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface The termination on an interface may consist of any combin...

Отзывы: