

		 An Introductory Guide to DATU Systems

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By: The Clone
URL: www.nettwerked.net
Date: Monday, August 6, 2001
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 * - Disclaimer

 * - Introduction

 * - Locating

 * - Administrating

 * - Credit

 * - Contact


 Disclaimer: The content within this file is for informational and
	     entertainment purposes only. Unauthorized access of
             the systems spoken about in this file may get you in
	     trouble with local and/or national law enforcement.

 -

 Introduction:

 DATU (pronounced 'dat-you') stands for Direct Access Testing Unit.
 A DATU unit is a physical device which is located at the local CO
 on a wiring card that is connected to a "no test trunk"), that allows
 field technicians and linesman to dial up to the trunk and perform
 various tests on a subscribers line. The DATU system itself extends
 the field technician and linesmans testing capabilities of subscriber
 lines through a non-metallic pair gain system. DATU was once manufactured
 and marketed by Hekemian Labs, but is now currently manufactured and
 marketed by Harris-Dracon division. Even though newer systems exist, DATU
 is still the most used analog, menu driven dial up test-board out there.

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 Locating:

 Locating and administrating a DATU system can be easy if you know the default
 suffixes your local phone company places them on. Many phone companies (Bell South)
 went through the unneeded liberty of changing the name of DATU either for the sake
 of unethical renaming of standard components, or for security reasons. Below is a
 list of regions, regional specific default suffixes, and the test system names
 associated with the specific regions. Note: 4-Tel is not a DATU, however it does
 function in a similar way to the DATU therefore I feel it belongs on this list...

 
            Canada:

      Name: '4-TEL' (manufactured by: Teradyne)
    Region: Alberta
 Area-Code: 403, 780
   Default: XXX-9935, XXX-DATU (3288), XXX-4TEL (4835)

      Name: '4-TEL' (manufactured by: Teradyne)
    Region: British Columbia
 Area-Code: 250, 604
   Default: XXX-9935, XXX-DATU (3288), XXX-4TEL (4835)
     
          United States:

       Name: 'DATU'
     Region: New Jersey
  Area-Code: 908
    Default: XXX-9935, XXX-DATU

       Name: 'DATU'
     Region: New York
  Area-Code: 212
    Default: XXX-9935, XXX-DATU


       Name: 'VoiceService'
     Region: Bell South
  Area-Code: 205, 229, 251, 321, 334, 386, 404, 407, 470, 478, 504, 606, 678,
             704, 731, 754, 770, 859, 901, 904, 912, 919, 954, 980, 984, 985
    Default: XXX-0000
       Info: Default VoiceService Admin PIN: (area code)

             You can ONLY administrate a VoiceService system if you
             have a Nortel 3580A capable of transmitting the KP tone.

              - KP Entry: XXXX KP pwd: XXX
 
              - When you get the pseudo recording, enter KP XXXX, and
                then KP PS, then KP XXX. The recording (ST) will say:
                "Remote Access VoiceService Completion Center 83E"

              - Enter Service or Subscriber number, then press * or
                to get a live supervisor press 1 KP #.

                 Options:
              - Add service
              - Remote Service
              - Change Type of Service
              - Remove CID information from line-set
              - Add Bunker
              - Remove Bunker

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 Administrating (From Harris DATU Manual):

 1. Dial Datu Access Number

 2. Enter Password

 3. Dial Seven digit subscriber number

 4. DATU will respond: "connected to xxx-xxxx.", "OK", or
    "connected to xxx-xxxx, busy line, audio monitor".
    Non-Pair gain lines proceed to step 7. Note: If busy line,
    DATU will not access the DC By-Pass Pair or the metallic
    Access Unit.

 5. SLC lines: If line is idle DATU will respond "Pair Gain Line"
    followed by "processing" ("Processing" may be repeated for up
    to 25 seconds) DATU will give voice message:
     
     Single Party line\      (Good)
                       |  
     Multi-Party Line  |     Followed by
     Coin Line        /      *ENTER RT NUMBER*
     Channel Not Available   (No/Bad channel test results)
     PGTC Failure/By-Pass    If same recording is heard
     Pair Busy               repeatedly alert supervisor
     Pair Gain System Alarm  (Alert Supervisor)

 6. If Good (or bad) Channel test results enter the
    RT number dial "*" to end ("**" toggle on or off the Alpha mode).
    Enter Pair Number, Dial "*" to end. Dial "0 *" to use existing
    DC TEST pair. DATU will connect to the By-Pass Pair or call the
    Metallic Access Unit in the RT, except when By-Pass is busy or
    Pair Gain System is in alarm. See Step 7 after connection to the
    remote site.

 7. LINE PREPARATION FUNCTION DIAL CODES:
    
    2 = Audio Monitor
    33 = Short Tip and Ring to Ground
    37 = Short Ring to ground (Tip Open)
    38 = Short Tip to ground (Ring Open)
    44 = High Level Tone on Tip and Ring
    47 = High Level Tone On Ring (Tip Grounded)
    48 = High Level Tone on Tip (Ring Grounded)
     5 = Low Level Tone
     6 = Open Line
     7 = Short Line (Tip to Ring Short)
     9 = Permanent Signal Release 
     # = New Subscriber Line
    ## = Force Disconnect
     * = Connect preparation function after disconnect
         (system programmable from 1 to 99 minutes 
         enter number of minutes); enter number of
         minutes after "*"

  Single Line Access: 

 1. Dial the DATU access number

 2. Enter the user password

 3. Enter the "*" and subscriber number for non pair 
    gain lines or Enter "**" and subscriber's number
    for pair gain lines and then enter RT number. 
    Dial "*" to end. Enter pair number. Dial "*" to end.

 4. Enter Function Desired

 5. Enter number of minuets to apply condition

 6. Hang up and wait 30 seconds for DATU to access and 
    condition line, (90 seconds for RT connection).

 Alpha Character Codes (when physically at DATU station):

  (space) = 11  A = 21  B = 22  C = 23  D = 31  F = 33
        G = 41  H = 42  I = 43  K = 52  L = 53  M = 61
        N = 62  P = 71  Q = 74  R = 72  S = 73  U = 82
        V = 83  W = 91  X = 92  Y = 93  Z = 94  = 13
        = = 12  / = 15

 Generic DATU commands:

  2 - Audio Monitor (allows you to monitor traffic on a busy line)
  3 - Short To Ground (establishes connection between tip, ring, and ground)
  4 - High Level Tone (injects 577MHz tone onto subscriber line to assist
      linemen in locating your pair at remote terminal. 577MHz tone is
      interrupted four times per second for identification purposes)
  5 - Low Level Tone (injects 577MHz tone to locate pair on remote
      terminal when subscriber line is busy)
  6 - Open Line (opens the subscriber line by removing the battery and ground
      thereby dropping voltage from line and disabling pair)
  7 - Short Line (places short across the tip and ring of the subscriber line
      at the Central Office)
  8 - Read Menu
  9 - Permanent Signal Release
 33 - Short Tip and Ring to ground
 37 - Short Ring to ground (Tip open)
 38 - Short Tip to ground (Ring open)
 44 - High Level Tone on Tip and Ring
 47 - High Level Tone on Ring (Tip grounded)
 48 - High Level Tone on Tip (Ring grounded)
  * - Line Preparation Function (used to continue line preparation function
      after disconnecting from the systems access line. Specify 1-9 minutes)
  # - New Subscriber Line (disconnects you from the current subscriber line
      and allows you to specify another subscriber line)
 ## - Force Disconnect (for up to twenty minutes)

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  Credit:

 Thank you to POS_RLS (irc.2600.net #hellsouth) for the additional
 Bell South VoiceService information.

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  Contact:

 theclone@hackcanada.com
 irc.2600.net #cpu (key), #hackcanada


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