ADTRAN D4 OCU DP (ETR) D4-OCU Installation & Maintenance Manual

ADTRAN D4 OCU DP (ETR) D4-OCU Installation & Maintenance Manual Manual pdf 1 page image

1Section 61107005L2-5, Issue 361107.005L2-5CC A U T I O N !SUBJECT TO ELECTROSTATIC DAMAGEOR DECREASE IN RELIABILITY.HANDLING PRECAUTIONS REQUIRED.PRACTICESSection 61107005L2-5Issue 3, June 1996CLEI Code # D4DA740 _ _ _D4-OCU DP (ETR)ALL-RATE OFFICE CHANNEL UNIT DATAPORTWITH EXTENDED TRANSMIT RANGEINSTALLATION/MAINTENANCE1. GENERALThis practice has been reissued to correct enhancedSwitch 56 references.This practice is an installation and maintenance guidefor the ADTRAN Office Channel Unit Dataport (D4-OCUDP) with Extended Transmit Range1 (ETR). Figure 1 isan illustration of the unit. A detailed product descriptionis found in ADTRAN D4-OCU DP Description Practice,Section 61107005L2-2.The Office Channel Unit Dataport (OCU DP) allowsaccess to the Dataphone ® Digital Service (DDS) orBasic Digital Service using existing 4-wire metallicfacilities and D4 channel banks equipped for dataportoperation. In addition to this interchangeability, theADTRAN D4-OCU DP contains the followingenhancements:• Extended loop range 2 (45 dB receiver rangewhen operated at all rates)• Intermediate rate of 19.2 kbps; special format 3________________________________________1 Covered under I.N.C. patent number 4,887,278Dataphone is a registered trademark of AT&T2 Covered under ADTRAN patent number 4,759,0353 Covered under I.N.C. Patent No. 4,862,480Figure 1. ADTRAN D4-OCU DP• Switched 56 capability• Latching and normal loopbacks• Latching loopback capability in SW56 mode• Loss of sealing current disconnect• Poor loop signal quality disconnect• Hardware signaling selection• 45 dB range at all rates• Faceplate Bantam jacks• Four diagnostic faceplate indicators• Extended transmit rangeFurnished with common equipment and individual channelunits, the D4 channel bank is a digital terminal providingmultiple-channel access to T carrier lines. The dataportis a D4-type channel unit which allows direct digitalaccess to a T carrier time slot, avoiding the normalanalog-to-digital conversion required in a voice channelunit.OCU DP1107005L2D4-OCUDP9.6 9.619.2 19.238.4 38.456 56644.84.82.42.4 SW56SCLOOP BACKIDLE CKTNO SXAUTO DISRX (OUT)TX (IN)ON1 2 3 4 5 6 7 8 9 10SW1CONTENTS1. GENERAL ................................................................... 12. INSTALLATION ........................................................... 23. CONNECTIONS .......................................................... 34. TESTING ..................................................................... 35. AUTO LOOP DISCONNECT ...................................... 46. MAINTENANCE .......................................................... 47. WARRANTY AND CUSTOMER SERVICE ................ 4FIGURESFigure 1. ADTRAN D4-OCU DP ......................................... 1Figure 2. Rate Option Switch ............................................. 2Figure 3. SW1 ..................................................................... 3Figure 4. Connector Pin Assignments ............................... 4TABLESTable A. SW1 Option Settings ........................................... 3

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