202 lines
10 KiB
Plaintext
202 lines
10 KiB
Plaintext
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/-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-\
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! Bell Telephone Info !
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\-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-/
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******************************************************************************
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BRIDGING HEADS, RESIDENTIAL AND BUSINESS MULTILINE DISTRIBUTION BOXES, LINE
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AND TRUNK SPLITTERS, AND OTHER BELL SYSTEM WIRE TERMINATIONS.
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- HOW TO USE, AND/OR ABUSE THEM -
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(INCLUDING A TUTORIAL ON BASIC TELEPHONE EAVESDROPPING TECHNIQUES.)
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******************************************************************************
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WRITTEN BY : PHUCKED
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AGENT 07/29/84
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04
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REVISED FOR LOD! 10/84
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CURRENTLY REVISION II
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****************************************************************************
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IN THIS ARTICLE, I WILL FIRST BESCRIBE THE TERMINATION, WIRING, AND
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TERMINAL HARDWARE MOST COMMONLY USED IN THE BELL SYSTEM, AND I WILL INCLUDE
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A SECTION ON METHODS OF USING THEM.
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*****************************************************************************
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-------------
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LOCAL NETWORK
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-------------
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THE LOCAL TELEPHONE NETWORK BETWEEN THE CENTRAL OFFICE/EXCHANGE AND
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THE TELEPHONE SUBSCRIBERS CAN BE BREIFLY DESCRIBED AS FOLLOWS:
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FROM THE CENTRAL OFFICE (OR LOCAL EXCHANGE) OF A CERTAIN PREFIX(ES),
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UNDERGROUND AREA FEEDER TRUNKS GO TO EACH AREA THAT HAS THAT PREFIX. (USUALLY
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MORE THAN ONE PREFIX PER AREA) AT EVERY FEW STREETS OR TRACT AREAS, THE
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UNDERGROUND CABLES SURFACE. THEY THEN GO TO THE SECONDARY TERMINATION, (THE
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AERIAL TELEPHONE FEEDER CABLE) (OR BACK UNDERGROUND, DEPENDING ON THE AREA) AND
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THEN TO THE SUBSRIBERS HOUSE (OR IN THE CASE OF AN APARTMENT BUILDING OR
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MUTLILINE BUSINESS, TO A SPLITTER OR DISTRIBUTION BOX/PANEL).
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NOW THAT WE HAVE THE BASICS, I'LL TRY AND GO IN-DEPTH ON THE SUBJECT.
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------------------
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UNDERGROUND CABLES
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------------------
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THESE ARE SOMETIMES INTEROFFICE TRUNKS, BUT USUALLY IN A RESIDENTIAL AREA
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THEY ARE FEEDER GROUPS THAT GO OTO BRIDGING HEADS OR DISTRIBUTION CASES. THE
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CABLES ARE ABOUT 2-3 INCHES THICK (VARIES), AND ARE EITHER IN A METAL OR
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PVC-TYPE PIPE (OR SIMILAR). RARELY (MAYBE NOT IN SOME REMOTE RURAL AREAS) ARE
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THE CABLES JUST 'ALONE' IN THE GROUND. INSTEAD, THEY ARE USUALLY IN AN
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UNDERGROUND CEMENT TUNNEL (RESEMBLES A SMALL SEWER OR STORMDRAIN). THE MANHOLES
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ARE >HEAVY< AND WILL SAY 'BELL SYSTEM' ON THEM. THEY CAN BE OPEN ED WITH A 1/2
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INCH WIDE CROWBAR (HOOK SIDE) INSERTED IN THE TOP RECTANGULAR HOLE. IF YOU GET
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IT OPEN, GO INSIDE!! THERE ARE LADDER RUNGS TO HELP YOU CLIMB DOWN. YOU WILL
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SEE THE CABLE PIPES ON THE WALL, WITH THE BLUE AND WHITE STRIPED ONE BEING THE
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INTEROFFICE TRUNK GRP (AT LEAST IN MY AREA). THE OTHERS ARE LOCAL LINES, AND
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ARE USUALLY MARKED OR COLOR CODED. THERE IS ALMOST ALWAYS A POSTED COLOR CODE
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CHART ON THE WALL, NOT TO MENTION TELCO MANUALS DESCRIBING THE CABLES AND
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TERMINALS, SO I NEED NOT GET INTO DETAIL. AGAIN: >IF YOU CAN GET INTO A
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BELL MANHOLE, DO IT!, IT WILL PAY OFF<. ALSO, THERE IS USUALLY SOME KIND OF
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TEST EQUIPMENT, AND OFTEN BELL TEST SETS ARE LEFT IN THERE. SO GET YOUR
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CROWBARS!
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BRIDGING HEADS - (WE MS2'S)
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--------------
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THE INNOCENT-LOOKING GRAYISH-GREEN BOXES. WHEN IN GROUPS OF TWO OR THREE,
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THEY ARE FOR SECONDAY/TERTIARY TERMINATION AND ACCESS POINTS (BRIDGED ACCESS).
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THESE ARE THE WESTERN ELECTRIC SAI 55 OR 22/E TERMINAL CASES. THEY HOLD ON THE
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ORDER OF 900-1200 CABLE PAIRS. THIS IS USUALLY THE SECOND TERM. POSITION ON THE
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LOCAL LOOP (AFTER THE MTF FRAME AT THE CO/ OR THE UNDERGROUND 'FTP' POSITION).
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THESE CAN BE EITHER TRUNK BRIDGES OR BRIDGING FOR RESIDENCES. THE AREA FEEDER
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BRIDGING HEADS ARE USUALLY LARGER, AND THEY HAVE THE 'WESTERN ELECTRIC' LOGO AT
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THE BOTTOM, WHEREAS THE NORMAL BRIDGING HEADS (WHICH MAY BE DIFFERENT IN SOME
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AREAS DEPENDING ON THE COMPANY YOU ARE SERVED BY. GTE B.H'S LOOK SLIGHTLY
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DIFFERENT. ALSO, DO NOT BE FOOLED BY SPRINKLER BOXES!) CAN BE FOUND IN JUST
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ABOUT EVERY CITY.
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TO OPEN A BRIDGING HEAD: IF IT IS LOCKED (AND YOU'RE FEELING DESTRUCTIVE),
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PUT A HAMMER OR CROWBAR (THE SAME ONE YOU USED ON THE MANHOLE) IN THE SLOT
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ABOVE THE TOP HINGE OF THE RIGHT DOOR. PULL HARD, AND THE DOOR WILL RIP OFF.
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VERY EFFECTIVE!
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IF IT ISN'T LOCKED (AS USUAL), TAKE A 7/16 INCH HEX SOCKET AND WITH IT, TURN
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THE BOLT ABOUT 1/8 OF A TURN TO THE LEFT (YOU SHOULD HEAR A SPRING RELEASE
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INSIDE). HOLDING THE BOLT, TURN THE HANDLE ALL THE WAY TO THE RIGHT AND PULL
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OUT.
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NOW INSIDE, FIRST CHECK FOR A TEST-SET (WHICH ARE OFTEN LEFT BY BELL
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EMPLOYEES). THERE SHOULD BE A PANEL OF CABLE PAIRS + SCREW TERMINALS (TYPE
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45/47IB REGULAR BINDERS) . PUSH THE PANEL BACK ABOUT AN INCH OR SO, AND ROTATE
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THE TOP LATCH (ROUND WITH A FLAT SECTION) DOWNWARD. RELEASE THE PANEL AND IT
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WILL FALL ALL THE WAY FORWARD. THERE IS USUALLY A LARGE AMOUNT OF WIRE AND
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EXTRA TERMINALS. THE TEST-SETS ARE OFTEN HIDDEN HERE, SO DONT OVERLOOK IT (400
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FOOT ROLLS OF #22 SOLID WIRE ARE OFTEN NEAR THE TOP IN THE BACK OF THE BOX.
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'BORROW THEM'). ON THE RIGHT DOOR IS A METAL BOX OF INSULATORS, BINDERS, CLIPS,
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ETC. TAKE A FEW (COMPLIMENTS OF BELL...). ON EACH DOOR IS A USEFUL ROUND METAL
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DEVICE. (SAYS 'INSERT GENTLY' OR 'CLAMP GENTLY - DO NOT OVERTIGHTEN' ETC..) ON
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THE FRONT OF THE DISC, YOU SHOULD FIND TWO TERMINALS. THESE ARE FOR YOUR TEST
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SET. (IF YOU DONT HAVE ONE, DONT DEPAIR -I'LL SHOW YOU WAYS TO MAKE BASIC TEST
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SETS LATER IN THIS ARTICLE). HOOKING THE RING (-) WIRE TO THE 'R' TERMINAL; AND
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THE TIP (+) WIRE TO THE OTHER. (BY THE WAY, AN EASY WAY TO DETERMINE THE
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CORRECT POLARITY IS WITH A 1.5V LED. TAP IT TO THE TERM. PAIR, IF IT DOESNT
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LIGHT, SWITCH THE POLES UNTIL IT DOES. WHEN IT LIGHTS, FIND THE LONGER OF THE
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TWO LED POLES. THIS ONE WILL BE ON THE TIP WIRE (+)) BEHIND THE DISC IS A
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COILED UP CORD. THIS SHOULD HAVE A SPECIALIZED CONNECTOR. ITS VERY USEFUL,
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BECAUSE YOU DONT HAVE TO KEEP CONNECTING AND DISCONNECTING THE FONE (TEST SET)
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ITSELF, AND THE CLIP IS DESIGNED TO AID IN LOCATING THE PAIR AND ASSURING THE
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CORRECT POLARITY.
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ON THE TERMINAL BOARD, THERE SHOULD BE ABOUT 20 PAIRS (RED/WHITE) PER ROW
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PER SIDE. HOOK THE CLIP TO ANY TERMINAL PAIR, AND YOU'RE SET! DIAL OUT IF YOU
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WANT, OR JUST LISTEN (IF SOMEONE'S ON THE LINE). LATER, I'LL SHOW YOU A WAY TO
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SET UP A TRUE 'TAP' THAT YOU CAN SETUP, AND WILL LET THE PERSON DIAL OUT ON HIS
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LINE AND RECEIVE CALLS AS NORMAL, AND YOU CAN LISTEN IN THE WHOLE TIME. MORE
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ABOUT THIS LATER...
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ON MAJOR PREFIX-AREA BRIDGING HEADS ('SAI' FOR AREA C.O. FEEDER CABLE) YOU
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CAN SEE TEMPORARY 'LOCAL LOOPS', WHICH ARE TWO CABLE PAIRS (CABLE PAIR =RING +
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TIP, A FONE LINE) THAT ARE DIRECTLY CONNECTED TO EACH OTHER ON THE TERMINAL
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BOARD. THESE 'CHEAP LOOPS' AS THEY ARE CALLED, DO NOT WORK NEARLY AS WELL AS
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THE EXISTING ONES SET UP IN THE SWITCHING HARDWARE AT THE EXCHANGE OFFICE. (TRY
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SCANNING YOUR PREFIXES' 00XX OR 99XX #'S. THE TONE SIDES WILL ANNOUNCE
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THEMSELVES WITH THE 1000 HZ LOOP TONE, AND THE HANG SIDE WILL GIVE NO RESPONSE.
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THE FIRST PERSON SHOULD DIAL THE 'HANG' SIDE, AND THE OTHER PERSON DIAL THE,
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TONE SIDE, AND THE TONE SHOULD STOP IF YOU HAVE GOT THE RIGHT LOOP). THE LOOPS
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ARE USED IN FRAME TERMINATION AND IN SONIC/600 OHM TERM. TESTING AND
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LINE/CABLE/FEEDER LOCATION.
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IF YOU WANT TO FIND THE NUMBER OF THE LINE THAT YOU'RE ON, YOU CAN EITHER
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TRY TO DECIPHER THE 'BRIDGING LOG' (OR WHATEVER), WHICH IS ON THE LEFT DOOR. IF
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THAT DOESNT WORK, YOU CAN USE THE FOLLWING:
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---
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ANI # (AUTOMATIC NUMBER INDENTICATION)
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---
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THIS IS A TELCO TEST NUMBER THAT REPORTS TO YOU THE NUMBER THAT YOU'RE
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CALLING FROM (IT'S THE SAME, CHOPPY 'BELL BITCH' VOICE THAT YOU GET WHEN YOU
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REACH A DISCONNECTED #) (PIP OR ONE OF THE 11X SERIES ANNOUNCE MENT FRAME
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MACHINES.)
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FOR THE 213 NPA - DIAL 1223
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213 NPA - (GTE AREAS) DIAL 114
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408 NPA - DIAL 760
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914 NPA - DIAL 990
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THESE ARE EXTREMELY USEFUL WHEN MESSING WITH ANY KIND OF LINE TERMINALS,
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FEEDER BOXES, ETC.
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WHEN FINISHED, BE SURE TO CUT OFF THE CONNECTOR AND TAKE IT WITH YOU (THEY
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ARE VERY HANDY), AND CLOSE/LATCH THE BOX TO AVOID SUSPICION.
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"CANS" - AERIAL-MOUNTED (TELEPHONE POLE TERMINAL) BRANCH FEEDER CABLE
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SPLITTER.
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----
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BASICALLY, TWO TYPES:
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1> MS3A SERVICE AREA INTERFACE. (LARGE, RECTANGULAR SILVER BOX AT THE END OF
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EACH STREET.)
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2> SERIES 600 LOADING COIL, INCLUDES THE MSX AERIAL DROP SPLITTER. (BLACK,
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ROUND OR RECTANGULAR THING AT EVERY TELEPHONE POLE.)
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TYPE 1 - THIS IS THE CASE THAT TAKES THE UNDERGROUND CABLE FROM THE BRIDGER
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AND RUNS IT TO THE AERIAL BRANCH FEEDER CABLE (THE LOWEST, LARGEST WIRE ON THE
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TELEPHONE POLE). THE BOX IS ALWAYS ON THE POLE NEAREST THE BRIGING HEAD, WHERE
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THE LINE COMES UP. LOOK FOR THE 'CALL BEFORE YOU DIG - UNDERGROUND CABLE'
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STICKERS..
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THE CASE BOX IS HINGED, SO IF YOU WANT TO CLIMB THE POLE, YOU CAN OPEN IT
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WITH NO PROBLEMS. THESE USUALLY HAVE 2 ROWS OF TERMINAL SETS. (TOTAL APPROX.
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200-600 PAIRS, DEPENDING ON THE AREA.) THESE ARE ALL THE CABLE PAIRS FOR YOUR
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STREET. (ITS SIMILAR TO A MINIATURE BRIDGING HEAD). USE/ABUSE IT IN THE SAME
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MANNER AS WE DID BEFORE. (NOTE: ALL THE ACTIVE LINES CARRY FROM 15 TO 48 VDC,
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AND EVEN 90VAC (WHEN RINGING), SO BE CAREFUL - IT'S NOT GOING TO HURT YOU,
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BUT IT CAN SURPRISE YOU (AND IF YOU'RE HANGING BY ONE HAND FROM A TEL. POLE, IT
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>CAN< BE HARMFUL!))
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OH, BY THE WAY, IF YOU USE ANI ON EVERY PAIR AND YOU FIND ONE THAT ISNT IN
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USE ON YOUR STREET, YOU CAN HOOK IT UP FOR YOURSELF (ALMOST). ALSO, YOU HAVE TO
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BE ABLE TO IMPERSONATE A TELCO TECHNICIAN AND REPORT THE NUMBER AS 'NEW ACTIVE'
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(GIVING A FAKE NAME AND FAKE REPORT, ETC) I DONT RECOMMEND THIS AND IT PROBABLY
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WONT (ALMOST POSITIVELY WONT) WORK, BUT THIS IS BASICALLY WHAT TELCO LINEMEN
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DO).*
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* THE USE OF THE 'TEST BOARD' (A 7D# FOR LINEMEN TESTS, OFTEN FOUND
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NXX-0003 OR NXX-0004) IS BEYOND THE SCOPE OF THIS ARTICLE, BUT WILL BE COVERED
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IN A FUTURE ARTICLE.
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TYPE 2 - THIS IS THE SPLITTER BOX FOR THE AERIAL DROP WIRES FOR THE GROUP OF
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HOUSES AROUND THE POLE. (USUALLY 4 OR 5 HOUSES). USE IT LIKE I MENTIONED
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BEFORE. THE TERMINALS (20 OR SO) WILL BE IN 2 HORIZONTAL ROWS OF SETS. THE
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EXTRA WIRES THAT ARE JUST 'HANGING THERE' ARE PROVISIONS FOR EXTRA LINES TO
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RESIDENCES (1 EXTRA LINE PER HOUSE, THATS WHY THE INSANE CHARGE FOR LINE #3).
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IF ITS THE BOX FOR YOUR HOUSE ALSO, HAVE FUN AND SWAP LINES WITH YOUR NEIGHBOR!
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'PIGGYBACK' THEM OR USE A CHEESEBOX FOR A LOOP-AROUND, ETC. AGAIN, I DONT
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RECOMMEND THIS, AND ITS DIFFICULT TO DO IT CORRECTLY. (ALTHOUGH USEFUL)
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